Weak flame, melted wires
Posted: Sat Jan 01, 2011 5:01 pm
You fellas have a great web site and are preforming a wonderful service. Thanks in advance.
Year 2000
Nordyne M1MB 090A BW propane conversion
Ser # M1M 000402954
Two weeks ago, this heater quit with four red flashes on the Control Module status display(lockout due to failed ignition). I had an HVAC tech check it out. He replaced the original coil igniter with a solid igniter and that seemed to work for a short time. We woke up with the heater not working. I called the HVAC tech the next morning, leaving messages. Have never heard back from him??? Hmmm.
The heater had tripped the circuit breaker. I removed the front cover thinking the filter was a problem. It ran ok for a few cycles, but the yellow light was flashing on/off with the "weak flame" signal. It would run for an extended period with little heat coming from the registers, although the flame was definitely on...weakly. It eventually shut down with the four flashing red light signal again. In the last few days I have recycled it a few times with the same result......yellow flashing light--shut down--four red flashing light.
I removed the burner assembly thinking your suggestions on cob webs/obstructions in the burner could be a problem. Everything is clear. However, I found that the new ignitor has melted wires (both) from the ceramic attachment points to about three inches away . They were not touching, however, one of the wires is only held by two strands 2.5 inches from the ceramic piece.
I am assuming this is not normal. I can't tell for sure if the wires ever shorted. The ignitor is still working, but the other problem remains. Any suggestions would be appreciated.
In case your are wondering, we have a corn stove and are using the furnace as a backup. So, we are not freezing in this below zero weather. The heater runs on occassion and has worked properly this winter up to the start of these problems. I am going to attach a photo of the igniter.
Thanks
Year 2000
Nordyne M1MB 090A BW propane conversion
Ser # M1M 000402954
Two weeks ago, this heater quit with four red flashes on the Control Module status display(lockout due to failed ignition). I had an HVAC tech check it out. He replaced the original coil igniter with a solid igniter and that seemed to work for a short time. We woke up with the heater not working. I called the HVAC tech the next morning, leaving messages. Have never heard back from him??? Hmmm.
The heater had tripped the circuit breaker. I removed the front cover thinking the filter was a problem. It ran ok for a few cycles, but the yellow light was flashing on/off with the "weak flame" signal. It would run for an extended period with little heat coming from the registers, although the flame was definitely on...weakly. It eventually shut down with the four flashing red light signal again. In the last few days I have recycled it a few times with the same result......yellow flashing light--shut down--four red flashing light.
I removed the burner assembly thinking your suggestions on cob webs/obstructions in the burner could be a problem. Everything is clear. However, I found that the new ignitor has melted wires (both) from the ceramic attachment points to about three inches away . They were not touching, however, one of the wires is only held by two strands 2.5 inches from the ceramic piece.
I am assuming this is not normal. I can't tell for sure if the wires ever shorted. The ignitor is still working, but the other problem remains. Any suggestions would be appreciated.
In case your are wondering, we have a corn stove and are using the furnace as a backup. So, we are not freezing in this below zero weather. The heater runs on occassion and has worked properly this winter up to the start of these problems. I am going to attach a photo of the igniter.
Thanks