Coleman 7700B Series 856 100,000BTU 80,000BTU

Questions about repairs and parts for Coleman furnaces, air conditioners and heat pumps for manufactured homes. Click here for Coleman parts.

Moderators: Greg, Mark

Posts: 1
Joined: Sat Feb 04, 2012 1:26 pm

Sat Feb 04, 2012 1:32 pm

We have replaced the thermal coupler on this furnace. Every time it is turned off of pilot to the ON position, the pilot blows out and the furnace burner does not light. Suggestions please. Thank you.

Posts: 385
Joined: Wed Apr 07, 2010 10:07 am

Sat Feb 04, 2012 9:47 pm

Is the thermocouple positioned properly in the pilot flame? If so, then the either try another thermocouple or the control valve is bad and needs to be replaced.