coleman 7665-856

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coleman 7665-856

Postby brianz420 » Wed Oct 29, 2008 2:06 pm

i had a problem with the blower running for about 30 seconds then shutting down for a minute or two and then coming back on for 30 secons. i bought a new fan switch and installed it. after installation the blower would not come on. i turned power switch off and put the old one back in, then turned power back on. now the burner wont ignite (pilot light is on). there is a humming noise coming from the transformer. is the transformer bad? what else would cause the fan from coming on?
brianz420
 

RE: coleman 7665-856

Postby Robert » Thu Oct 30, 2008 12:50 pm

The transformer may be bad, would have to check voltages to know.


Also check burner and orifice for blockages.



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Robert
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RE: coleman 7665-856

Postby brianz420 » Thu Oct 30, 2008 5:30 pm

before the burner wouldnt light it would make a click noise coming from the area of the valve a split second before the burner would light thats why i was thinking that the transformer is bad. i wish i had a way to test the voltage but i dont.
brianz420
 

RE: coleman 7665-856

Postby Robert » Fri Oct 31, 2008 2:16 am

Most supply stores for electric parts, hvac, etc. will have a set up to check transformers for you.



Or, a decent meter can be found for $20 in big box stores, etc.. .



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