Compruebe el elemento calefactor en 5 sencillos pasos para obtener agua caliente ahora

You have no hot water, and a faulty Elemento calefactor is a likely suspect. Fortunately, you can check heating element yourself in under an hour. Many top Fabricantes de elementos calefactores, como Calefacción eléctrica Jinzhong, create durable elementos calefactores de electrodomésticos, yet even the best parts can fail. This diagnostic is a straightforward job for any homeowner.

Consejo profesional: A quick multimeter test is all you need. It will tell you definitively if the element requires replacement, getting you one step closer to a hot shower.

Preliminary Checks Before You Start

Before you grab your tools, a few simple checks can sometimes solve your hot water problem instantly. These steps confirm your water heater has power and help you understand how it works. You might even fix the issue without needing to check heating element components at all.

Is the Water Heater Getting Power?

A lack of power is the most common reason for no hot water. Let’s verify the electrical supply first.

Check the Circuit Breaker First

Your water heater is a high-power appliance, so it has a dedicated circuit breaker.

1. Locate your home’s main electrical panel (breaker box).
2. Find the double-pole breaker labeled “Water Heater” or a similar description.
3. A tripped breaker will be in the middle or “off” position.
4. Firmly push the breaker to the full “off” position, then flip it back to “on.”

Nota: If the breaker trips again immediately, you likely have a more serious electrical issue, such as a shorted heating element. Do not reset it again and proceed with testing.

Find and Press the High-Limit Reset Button

Electric water heaters have a safety switch that cuts power if the water temperature gets dangerously high.

• This red button is located on the upper thermostat, behind the upper element access panel.
• After turning off the power at the breaker, you can access it.
• Press the button firmly. If you hear a click, it was tripped.
• You can now restore power to see if this solved the problem.

Understanding Your Electric Water Heater

Knowing how the system operates helps you diagnose the problem accurately. Most residential electric water heaters use two thermostats and two elementos calefactores to heat water in a specific sequence.

The Role of the Upper and Lower Elements

Your tank contains an upper heating element and a lower heating element. The upper element’s job is to heat the top portion of the tank first, ensuring you get hot water quickly. The lower element then takes over to heat the remaining water and maintain the tank’s temperature during standby.

How Thermostats Control the Elements

The two thermostats work as a team, but they do not operate at the same time. The upper thermostat always has priority. Here is the typical heating cycle from a cold start:

1. The upper thermostat detects cold water and activates the upper heating element.
2. This element heats the top section of the tank to the desired temperature.
3. Once the top is hot, the upper thermostat shuts off the upper element and sends power down to the lower thermostat.
4. The lower thermostat then activates the lower element, which heats the water at the bottom of the tank.
5. When all the water is hot, the lower element shuts off. It will cycle on and off as needed to maintain the temperature.

This sequence is why a failed lower element can result in short showers—only the top of the tank gets heated.

Step 1: Safety First and Tool Roundup

You are now ready to begin the diagnostic process. This first step is the most important because it ensures your safety. Working with any electrical appliance, especially one involving water, requires extreme caution. You must disconnect all power before you open any access panels. This section covers the critical safety procedures and the tools you will need to check heating element components correctly.

The Most Critical Step: Kill the Power

Disconnecting the power supply is the initial and most critical action you must take. This step is non-negotiable for your safety. You will turn off the power at the main circuit breaker panel and then verify that the wires are no longer live before touching anything.

How to Find Your Water Heater’s Breaker

Follow this procedure to safely shut down your water heater.

1. Head to your home’s main electrical panel. You can usually find it in a garage, basement, or utility closet.
2. Open the panel door and locate the breaker for your water heater. It is typically a double-pole breaker (two switches linked together) labeled “Water Heater,” “WH,” or “Hot Water.”
3. Firmly push the breaker to the full “OFF” position. Since most water heaters use a 240-volt supply, you must ensure both linked breakers are off.

Safety Alert ⚠️ Before you proceed, make sure the area around your water heater is completely dry. Water and electricity are a dangerous combination. You must also verify your water heater is correctly grounded to prevent electrical shocks.

Double-Check with a Non-Contact Voltage Tester

Never trust that the power is off just because you flipped a breaker. Always verify.

• Hold your non-contact voltage tester near the wires leading into the top of the water heater.
• The tester should not light up or make any noise.
• This simple check confirms there is no live current, making it safe to proceed.

Your Essential Toolkit for the Job

Having the right tools makes the job easier and safer. You likely have most of these items already. Gather them before you begin.

Multímetro

This is your primary diagnostic tool. A multímetro digital measures electrical resistance (ohms) and will tell you if your heating element is good or bad. It can also be used for continuity tests.

Destornilladores Phillips y Planos

You will need these to remove the screws on the element access panels and potentially to loosen the wire terminal screws on the element itself.

Comprobador de tensión sin contacto

As mentioned above, this pen-sized tool is essential for your safety. It detects the presence of voltage without you needing to touch any bare wires.

Nut Driver or Socket Wrench (Optional)

Some water heater models use hex-head screws on the access panels. A nut driver or a small socket wrench can make removing them much easier than using pliers.

Step 2: Accessing the Heating Elements

With the power safely disconnected and your tools at the ready, you can now open the water heater to get to the components. This step involves removing the outer access panels and insulation to expose the heating elements and their corresponding thermostats. You will work carefully to avoid damaging any parts. The process is identical for both the upper and lower sections of the tank, so you will simply repeat these actions for each element you plan to test.

Locating the Element Access Panels

Your first task is to find the small doors that hide the electrical components. These panels protect the wiring and thermostats from damage and keep the insulation in place.

Identifying the Upper and Lower Panels

Look on the side of your water heater tank for two metal plates.

• You will typically find one panel located in the upper third of the tank.
• A second, identical panel is usually located in the lower third of the tank.
• These panels are generally rectangular and secured with two or more screws.

Removing the Panel Screws

Use your Phillips screwdriver or nut driver to remove the screws holding each access panel in place. Set the panels and their screws aside in a safe spot, like a small container or magnetic tray, so you do not lose them. Once the screws are out, the panel should come right off.

Exposing the Element and Wires

Behind the metal panel, you will find a layer of insulation and the electrical components you need to access. You must remove the insulation to get a clear view of the element and thermostat.

Removing the Insulation

You will see a piece of fiberglass or foam insulation tucked into the opening. It might be a loose piece or held in place by plastic clips.

1. Gently pull the insulation straight out of the cavity.
2. If there are plastic retaining clips, carefully move them aside.
3. Place the insulation next to its corresponding access panel so you can easily put it back later.

Safety Tip 🧤 Fiberglass insulation can irritate your skin and eyes. You may want to wear gloves and safety glasses during this step to avoid any discomfort.

Identifying the Element vs. the Thermostat

With the insulation removed, you will see the heating element and the thermostat. It is important to know which is which before you check heating element connections.

• The Heating Element: This is the component you will test. It has a large, hexagonal base that screws directly into the tank. Two terminal screws stick out from the base where the wires connect.
• The Thermostat: This is a plastic or bakelite device mounted above or next to the element. It has temperature settings, several wire connections, and (on the upper unit) the red high-limit reset button.

You will be focusing your test on the two screws of the heating element itself.

Step 3: Preparing the Element for Testing

You have successfully exposed the heating element. Now, you must prepare it for an accurate diagnostic test. This involves carefully disconnecting the two wires attached to the element’s terminal screws. This process is simple, but precision is key to ensure you can reassemble everything correctly later. Rushing this step can lead to confusion when it is time to put things back together. Your goal is to isolate the element from the rest of the water heater’s electrical system. This allows your multimeter to test only the element, giving you a definitive result without interference from other components like the thermostat.

Document and Disconnect the Wires

Before you touch a single screw, you need to document the current wiring configuration. This simple act is your insurance policy for a smooth re-assembly. You will take a quick photo and then proceed with disconnecting the wires from the element’s terminals. This methodical approach prevents any guesswork when you are ready to reconnect everything, whether you are installing a new element or reattaching the wires to a good one.

Take a Photo of the Wiring

Your smartphone is an invaluable tool for this job. A clear picture serves as a perfect wiring diagram.

1. Position your phone to get a clear, well-lit shot of the thermostat and the heating element.
2. Capture how the wires run from the thermostat to the two screws on the element.
3. If needed, take a second photo from a different angle to ensure all connections are visible.

Pro Tip 📸 Think of this photo as your digital blueprint. It removes all doubt during re-assembly and is the single best way to guarantee you reconnect the wires to the correct terminals.

Loosen the Terminal Screws

Now you can prepare to detach the wires. You will use your screwdriver to loosen the two terminal screws on the face of the heating element.

• Select the correct screwdriver, which is usually a Phillips head.
• Turn each screw counter-clockwise just enough to loosen it. Two or three full turns are typically sufficient.
• Do not remove the screws completely from the element. You only need to create enough space to slide the wire connectors out from underneath them. This prevents you from dropping and losing the small screws inside the water heater housing.

Safely Detach the Wires

With the screws loosened, the wires are ready to be removed.

1. Gently pull each wire’s circular connector straight off the screw terminal.
2. If a connector is snug, you can wiggle it slightly to work it free. Avoid pulling on the wire itself; pull from the metal connector.
3. Carefully bend the wires so they rest away from the element. Ensure they are not touching each other or any other metal components. The element is now fully isolated and ready for testing.

Step 4: How to Check Heating Element with a Multimeter

This is the moment of truth. With the element isolated, you will use your multimeter to perform two simple tests. These tests will give you a definitive answer about the element’s condition. The entire process to check heating element with a multimeter takes only a few minutes. You will first test for continuity to see if the internal coil is intact, and then you will test for a ground fault to ensure it is not shorting out.

Configuración de su multímetro

Proper setup is essential for an accurate reading. You need to select the correct function on your multimeter and verify that it is working correctly before you begin testing.

Select the Ohms (Ω) or Continuity Setting

You will be measuring electrical resistance. To do this, you must set your multimeter to read ‘resistance’ or ‘ohms’.

1. Turn the main dial on your multimeter to the setting marked with the omega symbol (Ω). This is the mode for measuring ohms.
2. Some digital multimeters combine this with a continuity function, often marked with a soundwave or diode symbol. If your meter has this, you can use it. It will beep if a complete circuit is detected.

Test Your Multimeter Probes

Before testing the element, you should quickly test your meter. This confirms your tool is functioning and ready for the job. Simply touch the metal tips of the two multimeter probes together. Your meter’s display should show a reading very close to zero (e.g., 0.0 to 0.5 Ω). If you are in continuity mode, it should also produce a steady beep. This confirms the meter is working.

Test 1: The Continuity Test

The continuity test determines if the electrical pathway inside the heating element is complete. A good element has an unbroken internal coil that provides a specific amount of resistance to create heat. A bad element has a break in that coil.

Placing the Probes on the Element Screws

With the multimeter set to ohms (Ω), you are ready to test.

• Press one multimeter probe firmly against one of the two terminal screws on the heating element.
• Press the second probe firmly against the other terminal screw.
• It does not matter which probe touches which screw. Hold them steady to get a stable reading on the display.

Buena Lectura: Qué Significan 10-30 Ohmios

Un elemento calefactor funcional mostrará una lectura de resistencia específica. Para la mayoría de los calentadores de agua residenciales, este valor se sitúa entre 10 y 30 ohmios. El número exacto depende de la potencia (vatios) y el voltaje nominal del elemento, que suele estar grabado en la base del mismo.

Puede calcular la resistencia precisa que su elemento debería tener. La fórmula utiliza el voltaje (V) y la potencia (P) nominales del elemento:

Resistencia (R) = (Voltaje x Voltaje) / Potencia

Para un elemento común de 4500 vatios y 240 voltios, el cálculo es (240V * 240V) / 4500W = 12.8 ohmios.

A continuación se muestran algunos valores de resistencia típicos que puede esperar para elementos de 240V:

Si su lectura se acerca a estos valores, el elemento tiene una buena continuidad.

Mala Lectura: Entender OL o Infinito

Si la bobina interna del elemento está rota, su multímetro no podrá completar el circuito. Esto resulta en una lectura “mala”.

• Una lectura ‘OL’, que significa “Over Limit” (Sobre Límite) o “Open Loop” (Bucle Abierto), indica una resistencia infinita.
• Esto indica una rotura definitiva en la bobina interna del elemento calefactor.
• Ninguna corriente eléctrica puede pasar a través de una bobina rota, por lo que no puede producir calor.
• Un elemento que muestra ‘OL’ está defectuoso y debe ser reemplazado.

Prueba 2: La Prueba de Falla a Tierra

La segunda prueba verifica una falla a tierra, o un “cortocircuito”. Esta condición peligrosa ocurre cuando la bobina calefactora interna hace contacto con la cubierta metálica exterior del elemento. Esto puede hacer que su interruptor automático se dispare repetidamente.

Cómo Probar un Cortocircuito a Tierra

Mantendrá su multímetro en la configuración de ohmios (Ω) para esta prueba. Está verificando si existe una conexión eléctrica entre los terminales del elemento y su base metálica.

1. Coloque una sonda del multímetro en uno de los tornillos terminales del elemento.
2. Toque la otra sonda a la base metálica hexagonal del elemento mismo. También puede tocarla a cualquier parte metálica sin pintar del tanque del calentador de agua.
3. Observe la lectura en el multímetro.
4. Mueva la primera sonda al segundo tornillo terminal, manteniendo la otra sonda en la base metálica. Observe la lectura nuevamente.

Buen Resultado: Sin Lectura (OL)

Un elemento en buen estado está eléctricamente aislado de su carcasa. Por lo tanto, el resultado correcto para una prueba de falla a tierra es ‘OL’ o resistencia infinita. Esta lectura confirma que no hay una conexión eléctrica impropia entre la bobina interna y el cuerpo del elemento.

Mal Resultado: Cualquier Lectura Numérica

Si su multímetro muestra cualquier valor de resistencia numérico durante esta prueba—sin importar cuán alto o bajo sea—significa que el elemento tiene una falla a tierra. La electricidad se está fugando a la carcasa del elemento. Este elemento está defectuoso y es inseguro. Debe reemplazarlo inmediatamente.

Paso 5: Interpretar Resultados y Próximos Pasos

Ha completado las pruebas. Ahora puede analizar las lecturas del multímetro para hacer un diagnóstico final. Los números en su pantalla le indicarán una de tres cosas: el elemento está bueno, está abierto (quemado) o está en cortocircuito a tierra. Entender estos resultados es clave para planificar su próximo paso.

Qué Significan las Lecturas de su Multímetro

Sus dos pruebas—continuidad y falla a tierra—trabajan juntas para darle una imagen completa de la salud del elemento. Un elemento bueno debe pasar ambas pruebas. Fallar en cualquiera de ellas significa que ha encontrado el problema.

Elemento Bueno: Continuidad y Sin Falla a Tierra

Tiene un elemento calefactor bueno si sus pruebas produjeron los siguientes resultados:

• Prueba de Continuidad: El multímetro mostró una lectura de resistencia finita, típicamente entre 10 y 30 ohmios.
• Prueba de Falla a Tierra: El multímetro mostró ‘OL’ (Bucle Abierto) al probar entre cada terminal y la base metálica del elemento.

Estos resultados confirman que la bobina interna está intacta y correctamente aislada. Su problema de agua caliente está en otra parte, probablemente en los termostatos.

Elemento Malo: Sin Continuidad (Abierto)

Su elemento calefactor está malo si la prueba de continuidad resultó en una lectura de resistencia infinita.

• Una lectura ‘OL’ entre los dos terminales significa que el elemento está “abierto”.”
• Esto indica que la bobina interna se ha roto o quemado por completo.
• Un circuito abierto impide que fluya la corriente, por lo que el elemento no puede producir calor. Esta pieza debe ser reemplazada.

Elemento Malo: Falla a Tierra Detectada (En Cortocircuito)

Su elemento también está malo si la prueba de falla a tierra mostró cualquier lectura numérica. Esta condición se conoce como “cortocircuito a tierra”.” El Código Eléctrico Nacional requiere protección contra esta falla porque es un peligro de seguridad. Un elemento en cortocircuito a menudo disparará su interruptor automático.

La siguiente tabla aclara la diferencia entre un elemento abierto y uno en cortocircuito:

Reassembling Your Water Heater

Your next steps depend entirely on your test results. Follow the appropriate path below to either put your water heater back together or prepare for a replacement.

If the Element Tested Good

If your element passed both tests, you need to reassemble it to continue troubleshooting.

1. Reattach the Wires: Use the photo you took earlier as a guide. Slide each wire connector back onto its correct terminal screw and tighten the screws firmly.
2. Replace Insulation: Tuck the piece of insulation back into the cavity, ensuring it covers the thermostat and element.
3. Secure the Panel: Put the metal access panel back in place and fasten it with its screws.
4. You can now repeat the testing process on the other heating element or move on to testing the thermostats.

If the Element Tested Bad

If your element failed either the continuity or ground fault test, do not reconnect it.

Next Step: Replacement A faulty element cannot be repaired; it must be replaced. Leave the wires disconnected and the access panel off. Your immediate next step is to purchase a new heating element that matches the voltage and wattage of the old one.

Troubleshooting Beyond the Heating Element

If your heating elements passed both tests, your investigation is not over. The good news is you have ruled out a very common culprit. Your hot water problem likely stems from another component in the system. A faulty thermostat is often the next part to check, as it can prevent power from ever reaching a perfectly good heating element. Let’s explore how to test the thermostats and other potential issues.

How to Test the Thermostats

Your water heater’s thermostats act as the brains of the operation, telling the heating elements when to turn on and off. If the thermostat is broken, it cannot send the signal to heat the water. You will need your multimeter for this test, but this time you will be checking for voltage, not resistance.

⚠️ Extreme Caution: This test involves working with live electricity. If you are not completely comfortable and confident in your ability to do this safely, this is the point to call a professional.

Testing the Upper Thermostat

The upper thermostat has priority and controls power to the entire system.

1. Turn the power back ON at the circuit breaker.
2. Set your multimeter to AC Volts (V~ or VAC) in a range that can read 240V.
3. Carefully touch one probe to the top left terminal screw (L1) and the other probe to the top right terminal screw (L3). You should get a reading of ~240V.
4. If you have 240V coming in but no power going out to the element, the thermostat is likely faulty.

Testing the Lower Thermostat

The lower thermostat only receives power after the upper thermostat is satisfied (meaning the top of the tank is hot).

1. Ensure the upper thermostat is not actively heating.
2. Check for power coming into the lower thermostat from the upper one.
3. If power is present but the thermostat is not sending it to the lower element, you have found a bad thermostat.

Other Potential Causes for No Hot Water

If the elements and thermostats seem to be working, a few other mechanical or safety issues could be the cause.

Faulty High-Limit Switch

The red reset button on the upper thermostat is your high-limit switch. If it trips repeatedly even after you reset it, the switch itself may be faulty. A defective high-limit switch can cut power to the elements unnecessarily. If it will not stay reset, the entire upper thermostat assembly needs to be replaced.

Acumulación de sedimentos en el tanque

Over time, minerals in your water can settle at the bottom of the tank, forming a thick layer of sediment. This buildup creates an insulating barrier over the lower heating element. This phenomenon forces the heating system to work much harder, leading to some common problems:

• Reduced energy efficiency and higher utility bills.
• Less available hot water because sediment takes up space.
• Ruidos de chasquido o retumbo as water gets trapped and boils under the sediment.

Tubo de Inmersión Roto

The dip tube is a plastic pipe that directs incoming cold water to the bottom of the tank to be heated. If this tube breaks or cracks near the top, cold water will mix directly with the hot water exiting the tank. El síntoma principal de un tubo de inmersión roto es tener agua caliente solo durante uno o dos minutos antes de que rápidamente se vuelva tibia.

Cuándo llamar a un fontanero profesional

Ha hecho un excelente trabajo diagnosticando los problemas de su calentador de agua. Sin embargo, algunos problemas requieren las herramientas y la experiencia de un profesional autorizado. Conocer sus límites es una parte fundamental de cualquier proyecto de bricolaje, especialmente cuando se trata de electricidad de alto voltaje y agua a presión. Reconocer cuándo es necesario dar un paso atrás garantiza que el trabajo se realice de forma segura y correcta.

Señales de que el problema va más allá de una reparación de bricolaje

Ciertos síntomas apuntan a problemas que un simple recambio de piezas no puede resolver. Si encuentra alguna de las siguientes señales, su mejor y más segura opción es contactar a un fontanero profesional 👨‍🔧.

Fugas de agua del tanque

Observa acumulación de agua alrededor de la base de la unidad. Si la fuga proviene del cuerpo del tanque mismo, y no de una conexión de tubería, se trata de una falla crítica. Suele ocurrir cuando observas agua caliente rojiza o decolorada, lo que indica óxido y corrosión interna severos. Un tanque con fugas no puede repararse y requiere el reemplazo completo del calentador de agua.

Fallo de múltiples componentes eléctricos

Probaste ambos elementos calefactores y ambos termostatos, y varios de ellos fallaron en las pruebas. Una cascada de piezas fallidas puede indicar un problema eléctrico sistémico mayor. Un profesional puede diagnosticar la causa raíz para evitar que un nuevo componente falle inmediatamente después de instalarlo.

Te sientes incómodo con el trabajo

Tu seguridad es la máxima prioridad. Si en algún momento te sientes inseguro, especialmente al probar tensión activa, es hora de detenerse. Otros signos que indican que un profesional debe hacerse cargo incluyen:

• Tu calentador de agua tiene más de 10 años y se acerca al final de su vida útil.
• Escuchas fuertes golpes o crujidos, lo que indica una gran acumulación de sedimentos.
• La reparación parece demasiado compleja o no estás seguro de poder reensamblarlo correctamente.

La seguridad ante todo: No dudes en llamar a un profesional si no estás seguro. El riesgo de descarga eléctrica o causar una fuga importante de agua no vale el dinero que podrías ahorrar en una llamada de servicio.

Qué esperar de una llamada de servicio

Llamar a un fontanero elimina las conjeturas y garantiza una reparación segura y duradera. Puedes esperar un proceso directo y profesional.

Proceso de diagnóstico típico

Un fontanero normalmente realizará un diagnóstico integral. Verificará que la unidad reciba el voltaje correcto. Luego, probará sistemáticamente los elementos, termostatos y el interruptor de límite alto para aislar el componente defectuoso. También buscará signos de corrosión del tanque, acumulación de sedimentos y otras posibles fallas mecánicas.

Costos promedio de reparación

Para un problema común como un elemento calefactor defectuoso, puedes esperar que el costo de reemplazo profesional esté entre 200 y 300. La pieza del elemento calefactor en sí es relativamente económica, a menudo alrededor de 20. La mayor parte del costo cubre la mano de obra, la experiencia y la tarifa de la llamada de servicio del fontanero, brindándote la tranquilidad de que el trabajo se realiza correctamente.

Ha diagnosticado con éxito el elemento calefactor de su calentador de agua. Los resultados de su prueba con el multímetro ahora guían sus próximas acciones.

• A Elemento defectuoso requiere reemplazo.
• A Elemento en buen estado significa que debes proceder a probar los termostatos.

Esta habilidad de diagnóstico te permite resolver tu problema de agua caliente rápidamente, ahorrándote tiempo y dándote control sobre la reparación. 🛠️

PREGUNTAS FRECUENTES

¿Debo probar ambos elementos calefactores?

Sí, debe probar ambos elementos. El elemento superior proporciona el agua caliente inicial, mientras que el inferior mantiene la temperatura del tanque. Una falla en cualquiera de ellos puede causar problemas, por lo que probar ambos le brinda un diagnóstico completo del sistema.

¿Qué pasa si la lectura de mi multímetro es ligeramente diferente?

Una pequeña variación de la resistencia esperada es normal. Un elemento clasificado para 12.8 ohmios podría leer 13 ohmios. Solo debes preocuparte por lecturas extremas.

Indicador clave: Una lectura de ‘OL’ (Bucle Abierto) o un valor cercano a cero ohmios indica una falla definitiva.

¿Puedo reemplazar solo un elemento defectuoso?

Sí. Solo necesitas reemplazar el elemento específico que falló la prueba. No necesitas reemplazarlos como un par. Este enfoque es eficiente y te ahorra el costo de una pieza innecesaria.

¿Por qué se acaba mi agua caliente tan rápido?

Este síntoma suele indicar un fallo del elemento calefactor inferior. El elemento superior calienta una pequeña cantidad de agua en la parte superior del tanque. Usted agota rápidamente este pequeño suministro, lo que resulta en una ducha corta y tibia.

¿Necesito vaciar el tanque para probar el elemento?

No, no necesitas vaciar el tanque para realizar la prueba. Solo necesitas vaciar el calentador de agua cuando estés listo para retirar físicamente y reemplazar un elemento calefactor defectuoso. Los pasos de diagnóstico no lo requieren.

¿Cuáles son las herramientas más esenciales para este trabajo?

Necesitas tres herramientas críticas para realizar esta prueba de manera segura y efectiva.

1. Multímetro: Para probar la resistencia.
2. Probador de voltaje sin contacto: Para verificar que la energía esté apagada.
3. Destornilladores: Para quitar los paneles de acceso.

¿Cómo elijo el elemento de reemplazo correcto?

Debes comprar un nuevo elemento que coincida con el voltaje y la potencia del anterior. Esta información está grabada directamente en la base hexagonal del elemento. Toma una foto clara de estos números antes de ir a la tienda. 📸