Typically c is just a common for a digital thermostat so you don’t have to keep changing the batteries in it.
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Typically c is just a common for a digital thermostat so you don’t have to keep changing the batteries in it.
The symptoms you say lead me back to a flame sensor, it will light a flame and give it a second or two to start generating voltage, when it doesn’t see that it turns the flame off. But the 8 flashes is weird. I don’t think I’ve ever had one give me that. I’d start by making sure your getting the signal you need from the flame sensor, but I’m guessing you don’t have a fluke 87
Changed the thermostat and more blinks.
Just added that ground and so far so good (not that it means anything at this point).
Soon enough enough I'll have enough parts to build a second furnace...
NIL DIFFICILE VOLENTI
Hey. Maybe when one of them is acting stupid you can use the second one to heat your home.Originally Posted by bellavite1
Same issue happened with a friends furnace. I cleaned the flame sensor with a dollar bill (not to abrasive) and it fired right up. We ordered a replacement, swapped it when it came in, and kept the old as a spare.
"But when it's time to fight, you fight like you are the third monkey on the ramp to Noah's Ark; and brother, it's startin' to rain."
Update:
I now have the following into this:
New thermostat
New wiring
New flame sensor
New igniter
New pressure switch
It is still giving me trouble.
According to tech support they "think " it maybe the inducer motor starting to die, although the amps reading was excellent.
Replacing it would cost another $475.
The furnace is 17 years old, so, no thank you.
I can have a brand new Armstrong installed for $3500.
Is that an OK price?
About $550 dumped into this piece of crap...
If anyone can use any of the above parts, they were all purchased brand new, for a Goodman furnace.
They have about 40 days of life on them, the board itself less than a week.
I'll give you a good deal.
NIL DIFFICILE VOLENTI
What model furnace? Do you have central A/C?
A new 80% or 94% will take a bit more work to install than simply replacing an old unit.
If you don't have central air, it's a good idea to install it now. They are running pipes and drilling holes regardless so it may be time to upgrade.
When you sell the place, you will be glad you did.
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