Combustion air switch stuck

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

Moderators: ponch37300, Mark, flcruising, Greg

Combustion air switch stuck

Postby allan57 » Mon Oct 04, 2010 8:28 am

I have a model # DGAA056BDTA coleman furance. the code light is flashing (combustion air switch stuck closed) The furnace will not run. Is it that the switch or could it be the fan combustion air boster motor. This is the first time we tried to start the furnace this season.
allan57
 
Posts: 1
Joined: Mon Oct 04, 2010 8:19 am

Re: Combustion air switch stuck

Postby Robert » Tue Oct 05, 2010 1:57 am

Can be bad pressure switch, bad booster motor, pressure switch tubes kinked or clogged, air pipe to booster assembly clogged or damaged.


The most common is the pressure switch.


Thanks,
Robert
Some people are Humbly Grateful, while some are Grumbly Hateful.................... Which one are you ?
User avatar
Robert
Moderator
 
Posts: 6413
Joined: Wed Feb 28, 2007 12:07 am
Location: Tennessee

Re: Combustion air switch stuck

Postby danr48174 » Thu Oct 28, 2010 6:43 pm

is ther a way to bypass the switch to asure the swicth is bad abd not the motor?
danr48174
 
Posts: 1
Joined: Thu Oct 28, 2010 6:32 pm

Re: Combustion air switch stuck

Postby Robert » Fri Oct 29, 2010 12:41 am

Hi,

No, you would need to check the water column pressure at switch to know if motor is working correctly.


Thanks,
Robert
Some people are Humbly Grateful, while some are Grumbly Hateful.................... Which one are you ?
User avatar
Robert
Moderator
 
Posts: 6413
Joined: Wed Feb 28, 2007 12:07 am
Location: Tennessee


Return to Coleman Service & Repair

Who is online

Users browsing this forum: Bing [Bot] and 1 guest