York furnace troubleshooting codes
#1
01-07-17, 12:41 PM
York furnace troubleshooting codes
Hey guys looking for some assistance on my approx 15 year old York furnace, probably simple for you pros 
The furnace blew the the draft inducer motor and was replaced. After I replaced it(only cause I was working on it, but this problem may have existed prior?), I noticed a fault code still in play.
The furnace functions properly, when the signal is sent from the thermostat the inducer turns on, the blower fan kicks in, the ignitor lights up, but as soon as the gas is ignited, the flash code goes from the constant green to a constant red until the thermostat once again tells the control board that the desired temp has been achieved, which turns everything down and back to a constant green blinking again?
Not finding anything online about a slow constant red flash? But as mentioned until the unit ignites(and continuous to stay lit) does it go to a constant flashing red till it shuts down and starts flashing green again?
Thanks in advance for any assistance
The furnace blew the the draft inducer motor and was replaced
. After I replaced it(only cause I was working on it, but this problem may have existed prior?), I noticed a fault code still in play. The furnace functions properly, when the signal is sent from the thermostat the inducer turns on, the blower fan kicks in, the ignitor lights up, but as soon as the gas is ignited, the flash code goes from the constant green to a constant red until the thermostat once again tells the control board that the desired temp has been achieved, which turns everything down and back to a constant green blinking again?
Not finding anything online about a slow constant red flash? But as mentioned until the unit ignites(and continuous to stay lit) does it go to a constant flashing red till it shuts down and starts flashing green again?
Thanks in advance for any assistance
#3
01-07-17, 05:02 PM
Member
Give us the model number; it will be on a sticker in the burner compartment.
Things to check when you have a limit switch or rollout error:
Dirty filter
Too many supply registers or inline dampers closed off
Restricted cold air return
Dirty or plugged A coil (if you have air conditioning)
Malfunctioning main blower.
Things to check when you have a limit switch or rollout error:
Dirty filter
Too many supply registers or inline dampers closed off
Restricted cold air return
Dirty or plugged A coil (if you have air conditioning)
Malfunctioning main blower.
#5
01-07-17, 06:50 PM
It's been running for over three hours and seems to function properly besides the constant slow blinking red light while the gas is ignited? Otherwise while off its blinking green?
#6
01-07-17, 07:56 PM
Member
Are you sure it's red and not amber? Slow blinking amber light means normal operation with call for heat. Slow blinking green means normal operation, no call for heat.
