I have clicking in what appears to be the gas line whenever the furnace kicks on. I have heat, the clicking is loudest near the gas line on the water heater, but I can hear it upstairs as well. When the furnace goes off, the clicking stops. Does this sound like a furnace issue or gas company, don't know who to call, can't afford "extra" trips, but don't want to blow up either! Thanks for any input you have

Is it a continuous click?

Or

Does it click once when the fan turns on, then once when the gas turns on, and one last time when it shuts down? So a total of 3 loud clicks.

Aaron

It clicks continuously

There are two things that I can think of:

1) The flame sensor is dirty or bad so it is telling the gas to turn off but it just kicks right back on. If that is the case and it looks dirty you can just use a piece of fine grit sand paper or emery cloth to clean it.

2) The other problem is a bigger one that I've had happen on our older furnace a few times. The ingnition module may not be putting out the signal for the main gas valve to open and that is what is clicking. If that is the case you will need to call a service company and have the module replaced.

Aaron

Thanks for the suggestions. I was downstairs trying to figure out what a flame sensor is and noticed it clicks when the water heater burner goes on as well. I assume this makes it a gas company problem and will be calling them. Hpe I don't blow up@!

Sandy

Turns out the outside meter dial had gotten wet and was frozen. When the gas turned on (for example when the furnace kicked on) the gear inside the meter turned and the out side one stayed immobile, causing a clicking noise. Was a relief since when I called Consumers they made me evacuate the house and showed up with 2 trucks and lights flashing. Thanks for you help!

Hi Justsandy -

After reading your thread I called my propane company and the technician said: "I guarantee 100% that it has nothing to do with the tanks (where the meters are) since the tanks aren't grounded to the furnace. Ugh!

**** I got this **** too

**** I got this **** too