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Old 09-23-2013, 10:55 PM   #1
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Blower won't turn off

I have a 2013 264 bh. It's been sitting for two months. Went out today to grab something and was completely dead. Plug it in and everything turns on. Turn everything off but the blower will not shut off. Could thus be from the batteries being fully dead or something else. I pulled the fuse to turn it off and am going to leave it plugged in. Any advise will help. Leaving hunting in a week.
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Old 09-23-2013, 11:21 PM   #2
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Not sure what you mean by blower...the bath vent fan, range hood fan or the inverter fan is the only blower motors I can think of.
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Old 09-23-2013, 11:22 PM   #3
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Not sure what you mean by blower...the bath vent fan, range hood fan or the inverter fan is the only blower motors I can think of.
Sorry. The furnace blower.
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Old 09-24-2013, 12:48 AM   #4
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Sorry. The furnace blower.
Also tried disconnecting the thermostat. Won't turn off. And tried to get it to blow hot. Won't do that either
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Old 09-24-2013, 10:12 PM   #5
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Stuck relay

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Also tried disconnecting the thermostat. Won't turn off. And tried to get it to blow hot. Won't do that either
Most likely the thermostat energizes a relay that turns on the heater which in turn turns on the blower. The blower relay contacts have probably welded themselves together. Look for a relay connected to the blower supply wiring. Sometimes rapping on the relay will free up the contacts, but they will soon stick again. Modern circuit designers seem to think that micro relays can handle the arcing of contacts that occurs when motors start at or near the full amp rating of the relay, when in fact they can't and the common failure mode is for the contacts to stick together in a closed position.
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Old 09-24-2013, 11:34 PM   #6
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I don't have a wiring schematic. But in the furnace, there has to be a thermo switch somewhere that keeps the blower going after the thermostat on the wall turns the burner off. The blower has to cool the furnace plenum down once the burner shuts off. Once the plenum cools down, the thermo switch opens and turns the blower off. It sounds to me like maybe that thermo switch is stuck, keeping the blower on all the time.
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Old 09-25-2013, 11:54 PM   #7
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I would take it to your dealer and let them check it out. As mentioned, it is most likely a switch.
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Old 09-26-2013, 11:20 PM   #8
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I would take it to your dealer and let them check it out. As mentioned, it is most likely a switch.
Took it in today. Said it was a loose wire at the furnace control board.
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Old 09-27-2013, 06:57 AM   #9
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Thanks for reporting back.
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