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Old 09-25-2020, 04:55 PM   #1
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THOR #16740
A/C Heater Blower Stuck On

Thor Hurricane 29M 2016, has the blower running continuously. I removed the exterior plate and hit the off switch. It still blew air, but not as much. After a few minutes I hit the reset. It is still blowing even though all interior switches are off.

Any ideas?
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Old 09-25-2020, 05:07 PM   #2
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Originally Posted by Duglyn View Post
Thor Hurricane 29M 2016, has the blower running continuously. I removed the exterior plate and hit the off switch. It still blew air, but not as much. After a few minutes I hit the reset. It is still blowing even though all interior switches are off.

Any ideas?
I don't understand what you are talking about. What exterior plate? What switch? Are you talking about A/C or furnace? What reset? What interior switches?
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Old 09-25-2020, 05:48 PM   #3
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The cover on the driver side, where the furnace blower is. That blower is blowing continuously. There is an off/reset button on the inside. The interior switch is the on/off slide button (to turn on/off the furnace).

Since the last post, the blower stopped and there was a ticking sound from the blower area.
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Old 09-25-2020, 05:52 PM   #4
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I thinking your control board has failed. Are you sure the reset switch is in the OFF position? Also, FYI, when that switch is off it removes power to the thermostat so your A/C will not operate either.
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Old 09-25-2020, 08:47 PM   #5
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Update on furnace blower: After ticking and clicking for 10 minutes it stopped.
I turned on the furnace to double check. It ran well. Blower came on for another 2-3 minutes and stopped after the furnace was turned off.
Back to normal. Gremlin ran somewhere else!
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Old 09-25-2020, 09:24 PM   #6
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Originally Posted by Duglyn View Post
Update on furnace blower: After ticking and clicking for 10 minutes it stopped.
I turned on the furnace to double check. It ran well. Blower came on for another 2-3 minutes and stopped after the furnace was turned off.
Back to normal. Gremlin ran somewhere else!
Blower will always run for a short time to evacuate any residual.
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Old 09-26-2020, 02:48 PM   #7
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Has it rained recently? I had a similar problem when condensation from my AC was running down the side of the coach and penetrating the cover. Everything (control board included) was wet. Used my wife's hair dryer to dry everything out and problem was solved.
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Old 09-26-2020, 03:37 PM   #8
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Quote:
Originally Posted by Duglyn View Post
Thor Hurricane 29M 2016, has the blower running continuously. I removed the exterior plate and hit the off switch. It still blew air, but not as much. After a few minutes I hit the reset. It is still blowing even though all interior switches are off.

Any ideas?
Just FYI & future reference!
The air conditioner is on the roof & will only blow air from the ceiling vents, will only blow cold air, unless you had it upgraded to the heat pump option. If the thermostat "fan" switch is set to "auto" the fan will only run when compressor is running, if set to "low" or "hi" it will blow constantly from the ceiling vents.
The furnace will only blow air from the floor vents & will continue to blow for a few minutes after the burner has shut off to cool down.
As for the "ticking" sound I'd guess that's the metal plenum of the furnace cooling down.
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Old 09-26-2020, 04:54 PM   #9
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Originally Posted by Travelin' Texans View Post
Just FYI & future reference!
The air conditioner is on the roof & will only blow air from the ceiling vents, will only blow cold air, unless you had it upgraded to the heat pump option. If the thermostat "fan" switch is set to "auto" the fan will only run when compressor is running, if set to "low" or "hi" it will blow constantly from the ceiling vents.
The furnace will only blow air from the floor vents & will continue to blow for a few minutes after the burner has shut off to cool down.
As for the "ticking" sound I'd guess that's the metal plenum of the furnace cooling down.
Or the igniter trying to light the furnace.
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