toxcrusadr
Omelette au Fromage
I'm about to call the service guy so I'm grasping at straws. But sometimes you guys have good straws. :thmbsp:
York Stellar Plus 90% efficient gas furnace ca. 1989. One day in the spring it didn't fire up and I just, well, procrastinated. The small combustion air blower (vent fan) wasn't running. I pulled it out, verified it wasn't running and found a replacement ($274 for the darn thing, but two other schmucks wanted $500 so I did OK. Bastids.). It turns and blows air, but the light-up cycle does not proceed. No glow from the hot-surface ignitor.
The old fan had bad bearings AND there were little pebbles of hard stuff in the squirrel cage. I heard that dust and dirt can get into the system, go through the flames and make these kinds of cinders. They do look like cinders. I also found, inside the burner box, a bunch of what looked like tiny white poop from some critter. Pencil lead sized. Very odd. No sign of a nest or anything.
Just to be sure I checked the inlet/outlet pipes which go out of the back of the house. The inlet pipe had a small mud dauber nest which I vacuumed out. I pushed a flashlight 15 ft back to the first turn in the pipe and saw no blockage. Same for the outlet pipe. There is about 10 ft of pipe at right angles on both before you get to the furnace. It's not accessible due to turns in the lines.
I pulled the hot surface ignitor and it looks OK - not burned open.
The gas is on, all the condensate lines are hooked up so no holes in the boat. All wires reconnected and multi plugs plugged in.
I'm thinking maybe there's a relay out somewhere, or one of the many safety interlocks is shutting her down for some reason. I'd like to check the inside of the heat exchanger for debris (or waxy yellow buildup? ) but not sure if it's even accessible. Maybe there's an entire groundhog nest in there.
Ideas?
York Stellar Plus 90% efficient gas furnace ca. 1989. One day in the spring it didn't fire up and I just, well, procrastinated. The small combustion air blower (vent fan) wasn't running. I pulled it out, verified it wasn't running and found a replacement ($274 for the darn thing, but two other schmucks wanted $500 so I did OK. Bastids.). It turns and blows air, but the light-up cycle does not proceed. No glow from the hot-surface ignitor.
The old fan had bad bearings AND there were little pebbles of hard stuff in the squirrel cage. I heard that dust and dirt can get into the system, go through the flames and make these kinds of cinders. They do look like cinders. I also found, inside the burner box, a bunch of what looked like tiny white poop from some critter. Pencil lead sized. Very odd. No sign of a nest or anything.
Just to be sure I checked the inlet/outlet pipes which go out of the back of the house. The inlet pipe had a small mud dauber nest which I vacuumed out. I pushed a flashlight 15 ft back to the first turn in the pipe and saw no blockage. Same for the outlet pipe. There is about 10 ft of pipe at right angles on both before you get to the furnace. It's not accessible due to turns in the lines.
I pulled the hot surface ignitor and it looks OK - not burned open.
The gas is on, all the condensate lines are hooked up so no holes in the boat. All wires reconnected and multi plugs plugged in.
I'm thinking maybe there's a relay out somewhere, or one of the many safety interlocks is shutting her down for some reason. I'd like to check the inside of the heat exchanger for debris (or waxy yellow buildup? ) but not sure if it's even accessible. Maybe there's an entire groundhog nest in there.
Ideas?