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HVAC FitterTHE PART THAT FITS

Thermocouples and thermopiles

Thermocouples and thermopiles keep the gas valve open while the pilot burns. Match the type, the length and the fitting.

  1. 1Type: thermocouple (mV) or thermopile, as listed
  2. 2Length: same or a little longer
  3. 3Fitting: same nut or terminals

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LENGTH
VOLTAGE RATING
CONNECTION
TEMPERATURE RATING
OUTPUT
RESISTANCE
11 parts
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What it does

It makes a tiny voltage when the pilot heats it. No voltage, and the gas valve closes for safety.

Signs it is bad

The pilot lights while you hold the button, then goes out when you let go.

Gas safety

Turn the gas off first. If you smell gas, leave the house and call your gas company from outside. Read the guide.