Please...this is serious. Thanks for the replies...but for all those wanting to reply, please keep it to the helpful suggestions on what I can try as my troubleshooting proceedures. Thanks!
Don't worry, those not quite on topic suggestions are half from boredom and half from legitimate concern.
Back on topic, been asked if you can read the error code on the furnace. You'll have to actually be at the furnace, even if that means crawling through a crawl space. (I hope that it's easier done then said) You'll have to remove the front cover. iIRC, there's no screws holding it. There will be a window in the lower half, and a flashing light behind it. I've copied the flashcode description table for
Straight from that manual:
The SureLight® integrated control features a red LED light, for furnace status and troubleshooting. The LED flashes in X"+ Y" codes. For example using table 4 under PRESSURE SWITCH CODES", if the red LED flashes 2 times, then off for 2seconds then flashes 3 times, the low pressure switch is failed open. Two green LEDs show indoor blower status and CFM.
FLASH CODE DESCRIPTIONS
Pulse) A 1/4 second flash ON / four seconds of off time.
Heartbeat) 1/2 second bright / 1/2 second dim cycles.
X + Y) LED flashes X times at 1/2 second / two seconds off / flashes Y times at 1/2 second / four seconds off −repeats.
Pulse) Control powered (standby) Also signaled during cooling and continuous fan.
Heartbeat) Call for heat − normal operation
FLAME CODES
1 + 2) Low flame signal −− Check flame sensor.
1 + 3) Flame sensed out of sequence −− flame still present. Flame sensed without gas valve energized.
PRESSURE SWITCH CODES
2 + 3) Low fire pressure switch sensed open. 80% − check blocked exhasut (90% check inlet/exhaust or condensate line. condensate line)
2 + 4) Low fire pressure switch sensed closed prior to activation of combustion air inducer.
2 + 5) High fire pressure switch sensed open. 80% − check blocked exhaust (90% check inlet/exhaust orcondensate line)
2 + 6) High fire pressure switch sensed closed prior to activation of combustion air inducer.
2 + 7) Low fire pressure switch opened during ignition trial or heating demand.
LIMIT CODE
3 + 1) Primary / Secondary limit switch open.
WATCHGUARD CODES
4 + 1) Watchguard −− Burner failed to light, exceeded maximum retries. (auto retry after 60 min)
4 + 2) Watchguard −− Low pressure switch opened 5 times in one heating cycle. (auto retry after 60 min.)
4 + 3) Watchguard −− Lost flame sense 5 times in one heating cycle. (auto retry after 60 min)
4 + 5) Watchguard −− Limit open longer than 3 minutes. (auto retry aftrer 60 min.)
4 + 6) Watchguard −− Flame sensed out of sequence; flame not present. (auto retry after 60 min.)
4 + 7) Watchguard −− Ignitor circuit fault −− failed ignitor or wiring. If ignitor and wiring are okay, replace control.(auto retry after 60 min)
4 + 8) Watchguard −− Line voltage below 90 volts
HARD LOCKOUT CODE
5 + 1) Rollout circuit open −− Reset rollout switch, check wiring and recycle power to furnace.OTHER CODES
5 + 2) Control failed self check, internal error (control will restart if error recovers).
5 + 3) No Earth ground (control will restart if error recovers).
5 + 4) Reversed line voltage polarity (control will restart if the error recovers).
5 + 5) Low 24V (control will restart if voltage rises to normal)
Cheers!
