Original message
| KenP
 |  "Strange sound on heater shutoff"
, posted Fri 11 Jan 12:17  
I have a Carrier 58P series and recently had a new main board installed. This fixed my problem with the gas not igniiting but I still have a pop pop or what sounds like maybe a really lound relay switch. Any ideas. BTY, the main fan motor was replaced last year so I don't think its a bearing issue and I don't have the sound when the AC runs and shuts down.
Ken ...
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| "Re(1):Strange sound on heater shutoff" , posted Fri 11 Jan 20:08
Ductwork can do that but I'd think it would be doing it when you use the cooling also. Once in awhile I run across a furnace that makes a loud popping (usually also while it's running) and the noise is coming from the heat exchanger itself. Maybe you should have your heat exchanger checked for cracks.
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| KenP
| "Re(1):Strange sound on heater shutoff" , posted Fri 11 Jan 15:01
The unit is a 58PAV and it was installed new in 2000 or 2001 right before I bought the home.
Ken ...
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