I have a Trane XE90 (1994) furnace. The power vent fan is making noise and I am in the process of changing it myself.
The FASCO blower unit is listed as 7062-3956 at 3450 rpm.
My repair man ordered the replacement unit. It's not the same. My unit has a electrical box attached on the side of the motor. The replacement P/N D342094P03 doesn't have that attachment and is listed at 3400 rpm.
His supplier said that is the replacement.
All I need is agree or disagree.
With the internet I can see the numbers and I cannot find anywhere that will support the replacement part.
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Direct Factory Replacement Inducer Blower Motor Used in 90% Furnaces. ... Comfortmaker, Intercity Products Snyder-General, Heil, Tempstar, Arcoaire Draft Inducer Blower Motor. ... Used in ICP Equipment Models: ... GUH125A016CIN
Pressure switch is not proving that the inducer fan is running. First check to see if draft inducer fan is running that will be the small black fan that is hooked to the vent pipe. If fan is not running then replace fan. If fan is running then check the small rubber tub that runs from inducer blower blower to draft switch make sure the hole in the blower cage is not stopped up with rust you can clear this with a sewing needle. If this is clear then check the pressure switch with a volt meter make sure it is getting 24 volts to the switch and through the switch. If it is getting to switch and not through switch then replace the switch.
Are your air filters relatively new? Is a bird nesting in your units combustion air exhaust pipe? Does your draft inducer motor run before and after the gas has ignited? Check and confirm these 3 things first. Good Luck!
Sunbinder...you will need to do a little troubleshooting. Turn it off again and wait 20 minutes then back on. If no noise or odor. Are you certain that the smell came from the blower. "Thru-out the house is a lot of smell.
Listen closely on startup and running....any unusual sounds. ? Which fan are you talking about ? Furnace ? Vent like bath or kitchen ? If you are handy you can check the wiring connections to be sure they are secure and making good contact with tight wirenuts or screws etc.
It sounds like the fan limiter switch is going bad. This switch waits until the air temp is high enough for heating the house before allowing the fan/blower to come on. There is another switch that shuts off the blower when the air drops to a certain temp, or it may be the same switch that does both jobs. Hope this helps.
Could be correct, or you may have something in your fan that either fell into or crawled into your fan through the exahust duct.Since you have a service contract, have they actually been out to look at it or did they tell you that on the phone. It might be worth removing the fan and clear any forign matter. The problem is the labor to do that would be the same as to replace it. What does your service contract cover??
When a furnace is replaced with a newer style unit like yours with an inducer motor, they sometimes use the old vent pipe. These old style vent pipes are transite (light weight cement), the moisture created from your furnace exhaust is caught on the cool transite surface and runs back down into the blower blades or wheel bringing a white mineral deposit with it which causes your problem. The vent should nave been replaced with the heater using a metal vent material. You will need to replace your inducer motor assembly and vent pipe to prevent a recurrence.
Chances are the draft inducer motor is not pulling enough CFM through the heat exchanger.
That is usually due to either blocked/clogged flue pipe/vent.
damaged, missing or dirty fan blades.
or a motor going bad.
Check those three things first, as they are the usually problem. Other than that, it would be a sticking or bad switch.
If you s-uck on the end of the hose like a straw, while it is attached to the switch and it does not pull in then you are looking at a bad switch/cracked hose issue. If it does, then you are back to the draft inducer motor or it's squirrel cage fan being bad.
These are notorious for rusting and the blades breaking off.