What to do if your water heater vapor sensor is faulty?
If the reading on your multi-meter reads below 9k or above 45k ohms, the flammable vapor sensor is faulty and in need of replacement; you cannot reset the system until this issue is resolved. Reconnect the Molex connector to the bottom of the control pad, reconnect the water heater’s power if and turn the blower switch to the “ON” position.
Where is the FV sensor on my hot water tank?
Please ensure your basement/mechanical room is well ventilated during this process. Use at own risk. -Locate the FV sensor at the bottom of the tank located inside grey plastic clip box. -Turn power off to hot water tank.
Why does my hot water heater have FVS error?
The most critical reason why your gas control valve triggers an FVS error is that it might actually be doing its job. Do you have a gas leak somewhere? Make sure that you don’t smell fumes from natural gas, garage off gasses, or even open paint cans in the vicinity. Vent the area where your water heater is located.
Can a flame sensor be removed from a heater?
There is only one thing you “MAY” be able to attempt this evening. IF the flame sensor has removable leads you can disconnect them and bring the flame sensor out side for say 30 minutes to preferably an hour. Then reattach the leads and power on the heater. Sometimes that will work.
If the reading on your multi-meter reads below 9k or above 45k ohms, the flammable vapor sensor is faulty and in need of replacement; you cannot reset the system until this issue is resolved. Reconnect the Molex connector to the bottom of the control pad, reconnect the water heater’s power if and turn the blower switch to the “ON” position.
Please ensure your basement/mechanical room is well ventilated during this process. Use at own risk. -Locate the FV sensor at the bottom of the tank located inside grey plastic clip box. -Turn power off to hot water tank.
How to change the sensor on a hot water tank?
Place the sensor inside a sealed plastic ziploc bag and push the two spade connectors through the plastic thus sealing the unit off from the fumes. Insert equivalent series resistance between 70,000-1,700,000 ohms. -Replace sensor on hot water tank. -Cycle power ON.
Why is the gas valve on my hot water heater not working?
The problem is not with the flame sensor, it’s the Flammable Vapor Sensor (the safety sensor that prevent ignition if flammable vapors are detected). The only way I can get the gas valve to come back on is if the Flammable Vapor Sensor reports there are no Flammable Vapors.
