Nordyne/Miller furnace problem, getting 4 blinking lights on the Controller Board.
System: Nordyne/Miller Model #G5RC-100
Problem: Getting 4 blinks on the Controller Board every once in a while. Fault Condition is "Ignition Failure".
What I have noticed on start-up:
The system commences it's sequence start 1.exh. blower starts, 2.ignitor lights, 3.gas valve opens, 4.burners ignite.
But on some starts all the burns don't ignite, especially the ones near the temp. sensor, so it shuts down & re-starts after a few seconds. I'm assuming after a few of these failures the trouble codes on the C.B. goes off.
What I have tested:
1. Ignitor, tested then just replaced w/ a spare I had.
2. Temp. sensor, cleaned w/ light sandpaper.
3. Fresh Air Intake, Checked exterior opening for blockage, disassembled near furnace & blew-out w/ pressurized air.
4. rechecked all sensor connections & vacuum lines for problems.
This has still not solved my problem, what else can I check?
Do I need to replace the burner unit or have it cleaned (flames are a solid blue when it is running).
Let me just state, That I would never put my family at risk!!!!
I have taken all safety precautions prior trying to diagnose the problem w/ my furnace. I have a Carbon Monoxide detector in that area of the basement (hard wired to my alarm system). The systems safeties are functioning properly and the problem is not regular it is sporadic.
I'm really trying to find out info prior to having a tech. service the equipment. I would like to know what needs to be performed prior to calling & getting a quote that just drops a chin to the floor.
Re: Let me just state, That I would never put my family at risk!!!!
[QUOTE]Originally posted by kipph
You already have by messing with a system you dont know enough about!