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Thread Tools | Display Modes |
02-05-2023, 06:59 PM
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#1 |
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Registered User
Join Date: Apr 2015
Location: Puyallup WA
Posts: 365
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heater fan doesn't work on high setting
recently replaced the fan speed switch and it still seems my fan doesn't work in the high position any thoughts on what to check?
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02-05-2023, 11:38 PM
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#2 |
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Registered User
Join Date: Aug 2012
Location: concord ga
Posts: 188
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Re: heater fan doesn't work on high setting
the blower motor relay controls the high side of the blower motor its rite by the blower motor check it out
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02-06-2023, 11:25 AM
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#3 |
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Junior Member
 Join Date: Mar 2021
Location: Oronogo, mo
Posts: 35
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Re: heater fan doesn't work on high setting
Had issue with high on mine and only thing i found was ground near blower motor bad, repaired and it started working again.
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02-06-2023, 12:40 PM
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#4 |
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Registered User
Join Date: Aug 2012
Location: Oklahoma City, OK
Posts: 2,611
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Re: heater fan doesn't work on high setting
Make sure any fuses or links on the full speed wire from the junction block are still good.
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02-06-2023, 11:59 PM
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#5 |
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Registered User
Join Date: Apr 2015
Location: Puyallup WA
Posts: 365
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Re: heater fan doesn't work on high setting
Figured it out. I installed a painless kit and painless heater a/c harness. I didn't realize the painless kit uses a ground and its own relay for the heater and apparently it only uses the relay on high and didn't have the ground connected. Once I hooked it up correctly everything works as it should
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