Question about Kenmore 76081 Wall/Window Air Conditioner

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The fan does not work on high speed - Kenmore 76081 Wall/Window Air Conditioner

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1)Sometimes fan motors will 'lose' a speed.

2) the switch could be 'wired' incorrectly and 'Hi Speed' is not connected.

3) the switch itself could be bad

good luck!

Posted on May 04, 2010

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Posted on Jan 02, 2017

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Fan is not working on 2001 Chevy Silverado 2500 truck radiator fan motor?


The engine cooling fan system consists of 2 electrical cooling fans and 3 fan relays. The relays are arranged in a series/parallel configuration that allows the powertrain control module (PCM) to operate both fans together at low or high speeds. The cooling fans and fan relays receive battery positive voltage from the underhood fuse block.
During low speed operation, the PCM supplies the ground path for the low speed fan relay through the low speed cooling fan relay control circuit. This energizes the low speed fan relay coil, closes the relay contacts, and supplies battery positive voltage from the low fan fuse through the cooling fan motor supply voltage circuit to the left cooling fan. The ground path for the left cooling fan is through the cooling fan s/p relay and the right cooling fan. The result is a series circuit with both fans running at low speed.
During high speed operation the PCM supplies the ground path for the low speed fan relay through the low speed cooling fan relay control circuit. After a 3 second delay, the PCM supplies a ground path for the high speed fan relay and the cooling fan s/p relay through the high speed cooling fan relay control circuit. This energizes the cooling fan s/p relay coil, closes the relay contacts, and provides a ground path for the left cooling fan. At the same time the high speed fan relay coil is energized closing the relay contacts and provides battery positive voltage from the high fan fuse on the cooling fan motor supply voltage circuit to the right cooling fan. During high speed fan operation, both engine cooling fans have there own ground path. The result is a parallel circuit with both fans running at high speed.
Your best bet would be to take your vehicle to a qualified repair shop !
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1 Answer

A.c only works on high


Year/make/model??? Are you referring to the AC fan speed only working on high inside the vehicle? If the fan is only operating on the high speed, suspect a fan motor resistor problem. The resistor may have to be relaced

Jan 28, 2016 | Cars & Trucks

1 Answer

My ac is not working I have a Chevy Tahoe 2005 the fans won't turn on either .


Hi Maria , The A/C system wouldn't keep the fans from running but none working cooling fans will keep the A/C from working ! This is a fairly complex system if your not familiar with this sort of thing ! I will add the description from the factory service manual.
Cooling Fan Control - Two Fan System
The engine cooling fan system consists of 2 electrical cooling fans and 3 fan relays. The relays are arranged in a series/parallel configuration that allows the powertrain control module (PCM) to operate both fans together at low or high speeds. The cooling fans and fan relays receive battery positive voltage from the underhood fuse block.
During low speed operation, the PCM supplies the ground path for the low speed fan relay through the low speed cooling fan relay control circuit. This energizes the low speed fan relay coil, closes the relay contacts, and supplies battery positive voltage from the low fan fuse through the cooling fan motor supply voltage circuit to the left cooling fan. The ground path for the left cooling fan is through the cooling fan s/p relay and the right cooling fan. The result is a series circuit with both fans running at low speed.
During high speed operation the PCM supplies the ground path for the low speed fan relay through the low speed cooling fan relay control circuit. After a 3 second delay, the PCM supplies a ground path for the high speed fan relay and the cooling fan s/p relay through the high speed cooling fan relay control circuit. This energizes the cooling fan s/p relay coil, closes the relay contacts, and provides a ground path for the left cooling fan. At the same time the high speed fan relay coil is energized closing the relay contacts and provides battery positive voltage from the high fan fuse on the cooling fan motor supply voltage circuit to the right cooling fan. During high speed fan operation, both engine cooling fans have there own ground path. The result is a parallel circuit with both fans running at high speed.
Do you have a check engine light lit ? The thing to do would have it check at the dealer or a ASE certified repair facility ! They could hook up a advanced scan tool an diagnose fairly quick ! Or you could find a wiring diagram an try testing with a volt meter yourself ! But watch yourself so you don't short out the PCM - engine computer !

May 01, 2015 | AC Cars & Trucks

1 Answer

ON a 2006 HHR LT is there separate fuses for the three fan speeds. The high fan speed is working but th low and medium speeds are not. Where are the fuses located


the fan speeds work through a blower motor resistor and not separate fuses for each speed. when these resistors go bad they are designed to work on high speed only.

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1 Answer

AC and Heater fan will only work on high speed, all fuses good. any ideas thanks, Dave


When the blower fan will only work on high speed setting this means the fans speed control resistor is burned out, when it fails the fan defaults to high speed only. The fan resistor is located next to the fan and held into the cooling air duct by 2 screws near the blower motor. The part is fairly cheap and easy to replace.

May 11, 2011 | 2000 Mercury Villager

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The only speed on my heat/air fan the will work is high. All other speed quite at the same time. Would this be the fan motor or could it be a fuse?


It is most likely the fan switch, all the low speed work through a resistance, the full speed does not, there is only one fuse for the fan so if it works on high its ok and you say the fan works on high so the fan itself is ok

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Hampton Bay Windward II Purchased 2002 The fan has lost high speed. Low speed and medium speed work fine. When the fan is turned on to high speed it runs at medium speed. When switched from high to medium...


Most fans have a small rectangular multi-tap capacitor connected to the speed control in the fan. It is likely that this has gone partially bad. The capacitance values are printed on it. Lighting stores and big box hardware stores generally carry replacements.

Feb 23, 2010 | Dryers

1 Answer

2 speed vent fan now only works at high speed


the control board resistor for the fan control has gone this controls the voltage to the fan, it will need replace. with this not working the power goes straight to the motor.

Jun 15, 2017 | Kitchen Ranges

1 Answer

High cool not working


Compressors on these units runs at only one speed. The change to high cool is only a change in blower speed moving air faster over the cooling coil. I would have the running capacitor for the fan motor checked. A bad capacitor can cause your type of problem. The other problem could be that the high speed winding in the fan motor is bad. Try it operation in the fan only position through the two speeds. If it works in the low and high speed for fan only your problem could be in the selector switch.

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1 Answer

Hampton Bay 54 In. 5-Blade with remote control at wall.


1. Set the remote to run the fan on high.
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3. All speeds should work normally now.
The remote is modulating the maximum speed as set by the pull chain.

Dec 29, 2007 | Hampton Bay 54 In. 5-Blade Fan, Chestnut,...

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