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Blower Motor Blower will not blow on low speeds on two high speeds works great

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Replace blower motor resistor also check the plug at resistor if it is burnt replace plug also

Posted on Oct 17, 2008


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Posted on Jan 02, 2017


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3 Answers

Heater fan only blows on high speed

most likely the resister. Not very expensive part and should be easy to change out if you know where its located ( usually under the dash) You can buy a repair manual for your model at any parts store, and be sure to ask the parts guy if he knows where its located. he might just be able to save you the cost of the manual. Good luck with it.

Nov 27, 2012 | 1998 Chevrolet Cavalier

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Vetilation doesn't work in positions 1,2,3, works only in position 4.. help please!

You have got a defective blower motor resistor. Your blower resistor is located just to the left of your blower motor (which is located under the passenger side of your dash. You may find you have a carpeted covered piece of cardboard that is located on the underside of the dash (below the glove box ) if so you'll have to to remove it by removing the retaining clips, Now look up behind the glove box and you"ll see the blower motor and just to the left of it there is rectangular unit with a connector with six wires within the connector , the colors of the wires will be as follows (black and orange)(black and yellow)(two wire's that are black and white)(black and blue)and (black). the blower motor resistor is totally bypassed when you turn your fan speed to high ! The blower speed is controlled by the ground side of the blower. When you request any of the other three speeds the ground circuit is routed through the blower resistor which is made up of three resistors.( resistors reduce the current flow) and each resistor reduces a predetermined about of current.So when you request medium high blower speed the ground circuit runs through one resistor, if you request medium low the ground circuit runs through two resistors , and through three resistors to obtain low blower speed, Normally what happens is the blower resistor blows out the circuit between the fan switch and the blower motor resistor which results in the lost of all lower speeds,no different then the wire to the blower motor just being disconnected.Replace the blower motor resistor and you will in great shape .Thanks for using fixya

Jan 04, 2011 | 2000 Ford Focus

1 Answer

On my 1994 S-10 Blazer, the AC/Heater stopped blowing on high speed about 2 years ago. By switching the speed control quickly back and forth, sometimes High would work. But not anymore. I had the A/C...

Sometimes the electrical connecter burns on the back side of your switch. You can get just the switch and replace it and repair the connecter when possible.

Aug 12, 2010 | Chevrolet S 10 Cars & Trucks

2 Answers

My 02 Stratus heater only works on high. Any idea

Your blower resistor is bad. It controls the mutiple speeds to allow you to go from low/med/high. When it goes bad you get one speed or no speeds....It's about $20-$50 at any local auto parts store. It mounted directly to the speed switch or on the heater plenum unit on the passenger side behind the glove box....

Nov 05, 2009 | 1999 Plymouth Breeze

1 Answer

Replaced blower motor, now runs continuously.

Run's continuously ? High speed , low , med 1,2, 3 . ????
Probably the high speed relay contact's stuck closed . The fuse for the high blower is hot at all times , low blower fuse is hot only with key on. It sparks becaused the motor turns on . If it had a short the fuse would blow . The blower motor relay is part of the resistor pack near the blower motor .

Oct 01, 2017 | 2000 Oldsmobile Intrigue

1 Answer

2002 saturn heater

The problem is the blower motor speed control resistor, it is located near the blower motor in the housing.

Nov 23, 2008 | 2002 Saturn Sl

2 Answers

Does ac blower have a fan relay ? It doent blow ******* max

if it doesnt work on all speed its the blower motor resistor that broken thanks pierre

Jul 30, 2008 | 1979 Pontiac Firebird

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