The hot air fan stops working for about 10 min after running 4-6 hours. I then shut off the feeder and 10 min later it turns back on. This is the fan that blows hot air into the room,
Ef3 blower motor stops woking for 10 min
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heat seeker
Minister of Fire
Welcome to the forum!
Some of those motors have internal thermal switches that will shut the motor down if it overheats. When the motor cools, the switch makes again, and the motor runs. You don't say how old the stove is - but have you blown out the motor itself with compressed air? Are there dust bunnies blocking the motor cooling vents?
When I cleaned my stove this spring (bought it used in January), I took the room blower out to clean it. I took the motor outside and blew air through the windings, and was amazed at how much dust came out! I was sure glad I did it outside!
The bearings on the motor could be worn, which would make it work harder and overheat.
I'm sure others will pitch in with ideas, too.
Some of those motors have internal thermal switches that will shut the motor down if it overheats. When the motor cools, the switch makes again, and the motor runs. You don't say how old the stove is - but have you blown out the motor itself with compressed air? Are there dust bunnies blocking the motor cooling vents?
When I cleaned my stove this spring (bought it used in January), I took the room blower out to clean it. I took the motor outside and blew air through the windings, and was amazed at how much dust came out! I was sure glad I did it outside!
The bearings on the motor could be worn, which would make it work harder and overheat.
I'm sure others will pitch in with ideas, too.
jtakeman
Minister of Fire
As heat seeker stated its thermaling, You might want to start looking into a replacement. Post some numbers from the fan housing or motor tag. I'll see what I can find for OEM.
I have got them thru(until replacement arrives) by a good cleaning of the motor and the squirrel cage itself. I also drop some oil onto the bearings in the motor to help it along. Some of these have oil ports where you can drop some into the bushings. Use 3 in 1 blue can for electric motors or an equivalent.
I have got them thru(until replacement arrives) by a good cleaning of the motor and the squirrel cage itself. I also drop some oil onto the bearings in the motor to help it along. Some of these have oil ports where you can drop some into the bushings. Use 3 in 1 blue can for electric motors or an equivalent.
SmokeyTheBear
Minister of Fire
First it is overheating and shutting itself off, that is what thermal protection means on a motor.
The number one cause of this problem is the lack of proper maintenance of the blower, they need regular cleaning and most of them need regular lubrication. If this just started happening and there hasn't been any screech from the motor you may be able to salvage it. Remove,clean, and lubricate according to the motor manufactures lubrication instructions.
The number one cause of this problem is the lack of proper maintenance of the blower, they need regular cleaning and most of them need regular lubrication. If this just started happening and there hasn't been any screech from the motor you may be able to salvage it. Remove,clean, and lubricate according to the motor manufactures lubrication instructions.
jtakeman
Minister of Fire
Good point Smokey, I assumed its been doing it for a while before posting for help. Got to keep them clean and lube them as the manual states. Depending on its age the EF3 might just have the lube ports on it.
I lubed it last year but never took it out so I will take it out and clean it. I get a few air cans and do it. I have gasket material I bought last month for 12 for a 20x26 sheet it the standard material.
heat seeker
Minister of Fire
I'm not so sure canned air has enough power to blow the crud out of the windings. Do you know someone with an air compressor? Friend at a gas station, maybe?
WOW guys you are the best. There was a tone of filth on the blades and on the blades that cool the motor.
I took a compressor with a air gun and blew a ton of dust off. I was surprised it even blew air in the room!
I added oil to the oil ports 2 and brushed off the crud in the blades that the air gun could not get off.
The motor is blowing so much stronger in the room
I bet this thing was over heating and was causing the shutting off becasue the motor cooling blades were loaded with dust and from my experience from laptops when the fans get covered the don't spin evenly and wear out the bearings casing a failure after a while.
Thanks again to all of you.
I took a compressor with a air gun and blew a ton of dust off. I was surprised it even blew air in the room!
I added oil to the oil ports 2 and brushed off the crud in the blades that the air gun could not get off.
The motor is blowing so much stronger in the room
I bet this thing was over heating and was causing the shutting off becasue the motor cooling blades were loaded with dust and from my experience from laptops when the fans get covered the don't spin evenly and wear out the bearings casing a failure after a while.Thanks again to all of you.
heat seeker
Minister of Fire
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