mobilehomerepair.com

Hi, My Coleman furnace model DGAT070BDF will not come on and has 3 flashing green lights. I ordered and received from you a new pressure switch. I have replaced the pressure switch about 4 times on this furnace. I installed the new switch and there is not change. The furnace still just hums and will not come on and the light is still flashing 3 times. Any suggestions of what else may be wrong or what I can check? Thanks so much!!
Sue V

Hi Sue,

See my reply to this same question yesterday:

https://www.mobilehomerepair.com/phpbb/v ... f=1&t=7568



Thanks,
Robert