A thermocouple or flame sensor is a device used to control gas flow in gas water heaters. On older heaters with standing pilot lights, the device is typically called a thermocouple, while on newer units with electronic ignition, the same (or virtually the same) device is called a flame sensor.Sep 11, 2021
How much does it cost to replace a water heater sensor?
The thermocouple is an apparatus that senses whether the pilot light is lit and triggers the gas control valve. Repairs typically cost about $150 to have it done professionally, though a new thermocouple itself only costs about $20 on average.Aug 25, 2020
How do you test a water heater sensor?
sensor from it's bracket on the base ring of the water heater and disconnect both wires to the sensor. Take a resistance reading between the two wiring terminals of the FV sensor and note the resistance value. Service Note: Unless the ohm meter used has an auto-range feature the resistance should be checked twice.
How do I reset my water heater sensor?
https://www.youtube.com/watch?v=6t1nsqiU20Y
How much is a water heater sensor?
FV Sensors typically cost anywhere from $30-50 (if the FV Sensor kit includes a bracket, they will likely cost closer to $100). Depending on the manufacturer of the heater, you may simply be purchasing the sensor alone.Apr 8, 2020
What sensor is used in water heater?
A thermocouple or flame sensor is a device used to control gas flow in gas water heaters. On older heaters with standing pilot lights, the device is typically called a thermocouple, while on newer units with electronic ignition, the same (or virtually the same) device is called a flame sensor.Sep 11, 2021
How do you change a water heater sensor?
- Remove the Burner Assembly Manifold Cover. ...
- Remove the Burner Assembly. ...
- Remove the Cover Plate Gasket. ...
- Remove the Thermocouple. ...
- Install a New Thermocouple. ...
- Reinstall the Burner Unit.
How do I know if my thermocouple is bad on my water heater?
If the pilot lights but the flame goes out as soon as you release the button after holding it for 60 seconds, then the thermocouple is bad. It's possible to replace the thermocouple without removing the burner assembly, and many repair people do this.