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B class heater motor resistor - 2006 Mercedes-Benz B-Class

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Fan not blowing out much air on a 2000 S500 Mercedes


your blower motor going bad or blower motor resistor

Mar 10, 2014 | 2000 Mercedes-Benz S-Class

1 Answer

2004 canyon no voltage at heater resistor


The resistor provides the ground circuit for the blower motor. So you would need to have power at the blower motor first. Grounding the motor or resistor should make the motor run.
The blower motor gets power from a 30amp fuse which gets power from a relay.

Jan 18, 2014 | 2005 GMC Canyon

1 Answer

Heater fan slowed right down until u could just slightly feel cold air , now nothing


See if you have any fan on high speed, If yes, you might have a heater motor resistor issue. Other wise, possible a bad motor, or burnt connections in the wiring.

Jul 02, 2012 | 1994 Mercedes-Benz C-Class

1 Answer

The heater fan on my 1993 f-350 has become really loud. I only have hi speed which I understand may be a resistor issue but how do I remove the fan and motor assembly to inspect it?


A heater blower motor resistor is an electronic device with three or more progressive resistors that allow the heater blower motor to operate at slower speeds. The highest speed of the heater blower motor is not controlled by the resistor, so when the resistor fails, the fan will often work on the highest speed setting, but not the lower speeds.
To resistor is generally located under the dashboard and under the hood, near the blower motor . The resistor's electrical connector is disconnected, the resistor is removed and the new resistor is installed. On some vehicles it may be easily accessible, and on others it may take partial dashboard removal to replace the resistor.
Look under the hood, generally the wiring for the Blower resistor is attached to the wiring to the blower motor itself
It's inboard & below the motor, near the accumulator. You can see it standing beside the passenger fender. it's the off-white connector behind the L heater hose above the vacuum reservoir & the white WARNING sticker

Feb 12, 2011 | 1993 Ford F350

1 Answer

I have a mercedes benz c class 200 and need to know how to replace the heater blower resistor thanks yolande


The heater blower motor is located outside under the front scuttle panel, the plastic are where the wipers bolt on. You should extend the bonnet to its horizontal position, remove the wiper arms, then carefully remove the rubber seal and plastic scuttle panel trim.Some edges are sharp so be careful. Be careful not to loose any clips or rubber seals. You will see the blower motor now. Make sure the ignition is off and you have the key as someone could accidentally operate the wipers or the heater blower, the former can take your fingers off. Anyway the resistor is under the motor, unplug it and remove. Refitting it a reversal of the above.If you ever have to remove the wiper motor arm from its spindle ensure you index mark it first !

Feb 03, 2011 | 1998 Mercedes-Benz C-Class

1 Answer

How do i change the heater motor in my mercedes 1999 c180 and do i need to change any other parts ie, relay fuses etc.


it's on passenger's side under the glove box. there's a revision that you have to replace the resistor as well. the price is high

Feb 27, 2010 | 1999 Mercedes-Benz C-Class

1 Answer

Fuse diagram for a 98' E-150 van specifically for heater fan


owner manual will tell you fuse layout. If you have only high speed, you have a bad resister. 4 wires.

Resistor —Heater Blower Motor Switch Removal
  1. Remove the battery (10655) ; refer to Section 414-01 .
  1. Remove the battery tray.
    1. Remove the screws.
    1. Remove the battery tray.
  1. Disconnect the heater blower motor switch resistor connector.
  1. Remove the heater blower motor switch resistor (18591).
    1. Remove the two screws.
    1. Remove the heater blower motor switch resistor.
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Feb 26, 2010 | 1998 Ford Econoline

1 Answer

My E320 AC blower doesn't work


The blower motor and blower motor resistor need to be checked and replaced if one is good and the other bad it is stil a good idea to replace both at the same time, the resistor controls the power to the blower motor. it will be one or the other but replace both .

Jul 19, 2009 | 1994 Mercedes-Benz C-Class

1 Answer

Heater blower not working


Very common fault was the blower regulator fails (blower resistor)

Jan 12, 2009 | 2000 Mercedes-Benz E-Class

1 Answer

Heater not working


either blower motor resistor or blower selector switch.could be selector switch because if resistor was gone you should still have either hi or low fan speeds.

Oct 22, 2008 | 1997 Mercedes-Benz E-Class

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