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Why am i blowing main blower fuses - Chevrolet Cars & Trucks

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Bad blower motor. If the resistor was bad it would still blow at high speed only.

Posted on Dec 22, 2016

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Blowing main blower fuses in my 1998 chevy p/u


Sounds like your blower has a bad armature and causing to high a load on your electrical circuit. Time to change your blower motor down by the passenger feet.

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Mitsubishi L200 Fan Heater blower Fuse keeps blowing


Why does the heater fuse keep blowing
This place offers a few suggestions, like fan motor old and pulling too much current, or fan switch, ect

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Why has my heating and my a/c stopped blowing any air


The main reason is a defective blower resistor. Normally the lower speeds on the fan switch go out first and leaves just the high speed working. Either your resistor is bad, the blower motor itself is dead, or you have a blown fuse - check the fuse box.

Sep 07, 2014 | 2002 Nissan Quest

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2002 venture heater fuse blowing out


You may have a bad resistor or blower motor, a quick test would be to remove the connector from the blower and then turn key on and turn controls to all blower speeds and if the fuse blows then resistor is bad, if the fuse does not blow then reconnect the blower and try the settings again and if fuse blow then blower is bad. good day

Nov 16, 2012 | Cars & Trucks

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Bat Main 4 (30A) fuse is blown and A/C blower is not working.


By A/C blower you mean the A/C fan by the radiator? it is possible that the fan motor has failed therefore requiring more amperage to try to turn it and as a result it blows the fuse. Disconnect the fan and install good fuse and turn A/C on if the fuse does not blow replace the fan.

Sep 27, 2012 | 2005 Pontiac Grand Prix

1 Answer

1992 gmc pickup keeps blowing heater fuses I replaced the blow motor and it keeps blowing


Have you replaced the blower resistor . some times they can cause the fuse to blow . You may need a muiltmeter to test the current draw on the blower motor circuit. the draw should be less then half of the rated fuse .( 20 amp fues draw is less then 10 amps) You did not say but does the blower work on high only or the lower speeds with out blowing the fuse ? if it does work on low or high with out blowing the fuse i would replace the blower resistor

Mar 06, 2011 | GMC Sierra 1500 Cars & Trucks

1 Answer

Heater has stopped working


(1) possible blown fuse.
Note that fuses blow for a reason - seek out the reason, or it will blow its new fuse too.

The main fuse block is located inside the left side of the engine compartment near the battery. There is also an interior fuse panel located just above the left side kick panel.

Interior Fuse Panel
The interior fuses simply unplug from the fuse panel. Use the fuse puller tool provided with your car to remove fuses from the panel. The tool is located on the back of the interior fuse panel cover.


(2) possible blower motor dead. See maintenance manual excerpt below.

(3) possible blower motor relay faulty. Location of Blower relay:
Under hood, drivers side, front engine area,rear of headlight housing; relay mounted on drivers side of radiator shroud.


1990-92 Mazda 626 and MX-6
See Figure below

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  1. Disconnect the negative battery cable.
  2. Remove the glove box and the underdash cover.
  3. Detach the electrical connectors from the blower unit.
  4. Remove the blower unit-to-fire wall attaching bolts and remove the blower unit assembly.
  5. Remove the blower motor fan-to-motor fastener.
  6. Remove the blower motor-to-unit attaching bolts, then remove the motor.
  7. Installation is the reverse of the removal procedure.

Feb 01, 2011 | 1991 Mazda 626

3 Answers

Everytime i turn my heater on heater on works and blows fuse?


fuse blows. unplug heater blower motor turn ignition on, turn heater on, does fuse blow? if not need to replace heater blower motor

Feb 10, 2010 | 1995 GMC Jimmy

1 Answer

Heater blower on96 dodge dakota 4x4 stopped blowing,


If all the fuses are good(the blower fuse is usually a 30 amp) the next culprit could be a blower motor resistor. The resistor is normally under the dash with fat wires on it and screwed into the blower housing. You could have a bad motor also.

Dec 09, 2008 | 1996 Dodge Dakota

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