Question: How To Replace A Thermocouple On A Whirlpool Gas Water Heater?

How do you replace a thermocouple on a Whirlpool water heater?

How do I replace the thermocouple on a Whirlpool water heater?

  1. Turn off the gas supply.
  2. Unfasten the three nuts that hold the thermocouple and the two gas tubes to the valve.
  3. Detach the thermocouple from the burner.
  4. Install the new one the same way that you removed the old one.

Where is the thermocouple on a whirlpool hot water heater?

The thermocouple is a thin copper tube attached to the left of the manifold tube.

Are gas water heater thermocouples universal?

Universal Thermocouples. Universal thermocouples, as the name implies work on most water heaters. They are available online and in home supply stores for a reasonable cost. The length and the thread type are the two concerns when purchasing one.

How do you know if you have a bad thermocouple?

If you can’t get the flame to light at all, and you’re sure the gas is on, there’s probably an obstruction in the pilot tube. If the flame lights and goes out when you release the gas control knob after holding it in for the recommended 20 to 30 seconds, that’s the sign of a thermocouple malfunction.

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Can I replace a thermocouple myself?

It’s easy to replace and a new one costs $5 to $10. Rather than trying to unfasten the thermocouple inside the water heater’s burning chamber, it’s easier to remove the whole burner and thermocouple assembly. Then unfasten the three nuts that hold the thermocouple and the two gas tubes to the valve.

How do you check if a thermocouple is working?

If the thermocouple is working, you should be able to measure 30 to 40 millivolts of voltage at the connection end of the tube when the pilot flame is on. You can test this yourself using a multimeter, but you may need a helper to keep the pilot flame burning while you do it.

How long does a thermocouple last on a water heater?

All things considered, the question remains, “How long should my thermocouple last?” The answer to that question is that it depends on the application. In an ideal environment, that length of time can be indefinite.

Why does my Whirlpool water heater won’t stay lit?

If your gas water heater doesn’t stay lit, you may have a defective thermocouple. The gas for the pilot assembly is supplied by the main gas valve and is monitored by the thermocouple. The thermocouple is a heat sensing probe that is part of the pilot assembly and sits just above the pilot flame.

How do I know what kind of thermocouple I need?

How to choose a Thermocouple

  1. Determine the application where you will use the thermocouple sensor.
  2. Determine the temperature ranges the probe will be exposed to.
  3. Determine how important a fast response time is.
  4. Consider any chemical, abrasion or vibration resistance.
  5. Consider any installation requirements.
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How do I know what size thermocouple to buy?

Universal thermocouples come in lengths from 15 to 36 inches. An 18 or 24 inch will suffice for all residential water heaters using universal kits. Almost all older waters heaters and many of the newer style units with a sealed burner compartment and a viewing window will use this thermocouple.

How do you clean a thermocouple on a gas water heater?

Clean the thermocouple – using the emery cloth sandpaper, sand the ends of the thermocouple and then give it a finishing touch with the lint-free cloth. Hopefully, you can get to the ends of the thermocouple without having to detach it from the assembly, but you may have to do that.

Is there a difference in thermocouples?

Temperature range: First, consider the difference in temperature ranges. Noble Metal Thermocouples can reach 3,100 F, while standard RTDs have a limit of 600 F and extended range RTDs have a limit of 1,100 F. RTDs are also more stable and have better linearity than thermocouples.

What’s the difference between a thermopile and a thermocouple?

The main difference between Thermocouple and Thermopile is their method of measurement. The thermocouple is a thermoelectric instrument, while the thermopile is an instrument that modifies thermal energy into electrical output.

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