Coleman furnace DGAA090BDTA won't go on
My Coleman furnace would not start. The diagnostic board light was blinking 3 times. That meant the COMBUSTION AIR SWITCH FAILED TO OPEN. I ordered 2 switches from you folks. I installed it and the furnace still did not go on. I heard a loud buzzing coming from the STANDARD AIR BLEND 2 control box and 1spade was all rusty. Would that be my problem or do I have other problems?
Hi,
The blend air system is wired into the circuit, but not part of the cycle. Only way it would come into play is if something wrong with splice where it is wired in interrupted the circuit.
Combustion air switch failed to open/close can be any or a combo of these:
bad pressure switch
kinked, loose, clogged tubes connecting to pressure switch
air pipe leading to combustion air/booster motor clogged or separated
combustion motor wheel dirty or damaged
combustion motor not running or not reaching enough rpm to produce correct water column pressure to switch
Thanks,
Robert
The blend air system is wired into the circuit, but not part of the cycle. Only way it would come into play is if something wrong with splice where it is wired in interrupted the circuit.
Combustion air switch failed to open/close can be any or a combo of these:
bad pressure switch
kinked, loose, clogged tubes connecting to pressure switch
air pipe leading to combustion air/booster motor clogged or separated
combustion motor wheel dirty or damaged
combustion motor not running or not reaching enough rpm to produce correct water column pressure to switch
Thanks,
Robert
Some people are Humbly Grateful, while some are Grumbly Hateful.................... Which one are you ?
-
- Similar Topics
- Replies
- Views
- Last post
-
- 2 Replies
- 20919 Views
-
Last post by TorstenW
Tue Mar 06, 2018 1:04 am
-
-
Intertherm FEH-017HAC won't shut off
by Jetherid » Mon Dec 07, 2020 6:22 pm » in Nordyne Service & Repair - 0 Replies
- 175713 Views
-
Last post by Jetherid
Mon Dec 07, 2020 6:22 pm
-
-
-
Eb12eb Coleman furnace 4 speed help.
by Johnwayne892000 » Thu Aug 30, 2018 7:37 pm » in Coleman Service & Repair - 0 Replies
- 24988 Views
-
Last post by Johnwayne892000
Thu Aug 30, 2018 7:37 pm
-
-
-
Coleman 6806a furnace doesn't stop heating even with tstat disconnected. Any ideas?
by Neighbor Bill » Mon Dec 31, 2018 1:01 pm » in Coleman Service & Repair - 1 Replies
- 41711 Views
-
Last post by Neighbor Bill
Mon Dec 31, 2018 1:06 pm
-
-
-
DGAT Series furnace air-conditioning issue
by minnie1967 » Thu Jul 13, 2017 9:48 am » in Coleman Service & Repair - 0 Replies
- 61916 Views
-
Last post by minnie1967
Thu Jul 13, 2017 9:48 am
-