brandyleah
Dec 15, 2009, 08:43 PM
I have a coleman evcon furnace model number DGU08012UB. The indicator light is flashing 3 times indicating that the pressure switch is stuck open. Would anyone know where I may locate the service manual for this model. I believe this unit is approximately 12 years old and we have just replaced the blower. Thanks,
hvac1000
Dec 15, 2009, 08:58 PM
Parts manual
http://www.hamiltonhomeproducts.com/resource-files/manuals/furnaces/90_furnaces/1-Stage/DGU-DGD/DGU-A&B-Parts.pdf
Replacement switch seems expensive but?
2 Wire 1 Hose New OEM Factory Direct Upgraded Replacement Pressure Switch (York): Best Buy Heating and Air Conditioning (http://bestbuyheatingandairconditioning.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=PRS2425994&Category_Code=PS)
Sorry no luck service manual.