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The fan was not running continuously for 2 days after the service tech was here on 10/31. I was monitoring the situation and turning the power off and back on when it did continue to run after a...

It was serviced on Oct. 31 of 2008. The original problem of fan not turning off seemed to cure itself 2 days later and had been OK until today.

The tech could not find anything but said having...

I have a gas-fired, forced-air G20 series Lennox and a Hunter 44110 thermostat.

A couple months ago I had an intermittent problem where after the burner shut down the fan occasionally would...

I'll give it a thump next time it fails. If a thump stops the fan, what would that tell me?

I have an annual maint scheduled in about 2 weeks...will see if I can get it moved sooner.

Problem is intermittent as it had occurred 3 times in a week until last night when it occurred 5 or 6...

Hi Therm76,

Thanks for the reply. I will have the heat exchanger inspected, but why would a faulty heat exchanger cause this problem? The time delay in shutting off the fan after the burner...

Lennox G20 forced air gas fired system about 10 yrs old. After the burner shuts down the fan will continue to run forever. Only by cutting power at the furnace will it stop. Fan should shut off about...

I'm not going to mess with the service panel. My main thrust here was to get a feeling for whether, since this has only occurred twice, I should wait and see if it continues, or should go ahead and...

I have 10 year old central A/C (Lennox), but have lived in house only 2 summers. Last summer A/C ran fine. Twice this summer within the past 10 days I found the A/C circuit breaker in the service...

I have a natural gas fireplace with a standing pilot and a thermopile in series with a normal SPST 120 volt switch. It uses a Honeywell VS8421 gas valve. I believe that closing the switch allows...