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Hello. Our heater kept coming on and the fan would sometimes run and sometimes not. We replaced the fan's compacitor and now the fan comes on but will not stay on. We ordered the lower limit switch but my husband says that it is the wrong one. He says it is "closed" and needs to be "open". Is it possible that a fan switch could be the problem? And if so would it be 7975-3281? Thanks for the help.

Hi,


Lower Limit # 7705-3591


Upper Limit (manual reset) # 7624A3591


Fan Switch # 7975-3281



All can be seen and ordered through PayPal from this page:

http://www.mobilehomerepair.com/ColemanGas.html



The limits are supposed to be closed and open when tripped.





Thanks,
Robert

Thanks for the help. I ordered the parts and my husband installed the fan switch. He didn't see where the upper limit switch was located. We also replaced the thermastat on the wall. The heater is now working much better but the fan stops blowing before the burners go out. The fan stops when the set temperature is reached but the burners stay lit. Any suggestions? Thanks and God bless.

Is there still a call for heat from t-stat at that time ?


Is there still power to gas valve ?


Because of the hazards here if something is misread, wired wrong or diagnosed wrong, it would be best to call a Tech.


Your families safety is of the utmost importance here.



Thanks,
Robert