Question about 1996 Mercedes-Benz E-Class

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Heater blower does not work,

Heater fan motor and fuse proved to be ok. can't find a Siemens component 539.9879.770 (4 x 30cm red,black, blue, yellow cables to a RESISTOR)

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5 Suggested Answers

  • 1 Answer

SOURCE: heater/blower fan not working at all after intermittently working

Heater motor is prone to water damage when the small drain scuttle drain gets blocked (usually by leaves).
If the passenger footwell carpet is damp, that's probably the problem.
Worth checking regularly anyway, and/or remove the small cover over the drain which is part of the problem.
Remove the heater assembly (located over passenger footwell) and replace is the easy answer.
It is possible, depending on ability, to strip and repair.
New from Europarts around £130, used around £60.
Have fun!

Posted on Nov 19, 2008

Ray190te
  • 61 Answers

SOURCE: heater blower not working

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

Posted on Jan 24, 2009

lastech
  • 408 Answers

SOURCE: blower motor works only on high on 1995 mercedes e320

hello,good day,first try to check your blower switch,if not corrected,your blower resistor is located at the bottom of your brake booster,ty

Posted on Jul 25, 2009

  • 784 Answers

SOURCE: location of blower motor fuse

Fuse blower motor is not in the fuse box. It is located outside. lOpen the hood, on the driver side near the fender, about 1 feet from the fuse box toward the direction of the radiator, there is a retangular about 1x2 in with wire coming out from each end. Snap it open, inside is the the wire fuse.

Posted on Aug 05, 2009

  • 297 Answers

SOURCE: c180 heater fan not working all fuses ok ???

Most likely the switch or the fan motor it self.

Posted on Aug 08, 2009

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Trying to change out ac heater fan motor


Before changing out the blower motor, go to the underhood fuse block and check the 30A BCM 3 fuse. Next, go to the body control module (BCM) and check the 10A HVAC/PK 3 and HVAC/I/P IGN fuses. If the fuses are OK, start the car and operate the A/C request switch to close the HVAC relay and apply 12V to the blower motor. The motor should operate at a speed determined by your setting of the blower motor switch. If not, there could be a failure in any of the components mentioned but also the blower motor resistor string

Oct 15, 2012 | 2006 Chevrolet HHR LS

1 Answer

Pontiac montana 2000 general fan (all air-hot and cold) doesnt function changed the fuse and now only works from settings 3-5 and change the heater relay is my fuse labelled 'air" not the right...


there is a blower motor resister which controls fan speed i believe its located pass side of dash by blower motor has one plug about 5 wires red ,orange .blue yellow

Feb 09, 2011 | 2001 Pontiac Montana

2 Answers

The heater fan quit working on my 99 chevy suburban today. Any ideas on how to get it working.


KEY ON, FAN ON HIGH TAP FAN MOTOR NEAR WHERE POWER GOES IN, IF BLOWER RUNS REPLACE BLOWER MOTOR.

Jan 28, 2011 | Chevrolet Suburban 1500 Cars & Trucks

1 Answer

The heater fan just stopped...


Check fuse #14(10amp) located in fuse box under driver steering wheel behind the lower dash cover.
Check fuse#12(40amp) located in fuse box under hood.
Replace fuse(s) if any are blow.

If fuse are good.Check blower and transisto next.
Do steps 1-3 with turn key on
1. Unplug connector and check for 12v at the blue/white wire at the blower motor(2-NAT)
-if there's no voltage you might have a bad relay or open in the wire
-if there's about 12v, go to step 2
2.Plug connector for blower motor and unplug connector for blower transistor(4-NAT). Take a jumper wire and jump the blue/black wire to body ground.
-if blower does not run, replace blower motor
-if blower motor runs, go to step 3
3.check the black wire at(4-NAT) for good ground.
-if you have good ground, then replace blower motor transistor.
good luck

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Jan 18, 2011 | 2004 Honda Element

2 Answers

My heat has stop blowing. replaced blower, and heater on off switch. what else could it be?


LX? DX? EX? Hatchback? sedan? wagon?coupe? engine size? did you check the fuse? Fuse #19, 30 amps in the auxilary fuse box (your owners manual may show the location ,it may be near the blower ?). The Blue/White wire at the heater blower motor should be HOT (12v) with key on. If you ground the Blue/Black wire the motor should run full speed.

Dec 17, 2010 | 1991 Honda Civic

1 Answer

The heater / blower in my 1992 dlx has stopped working all fuses ok


Hello hfg.

1. First of all, tap the blower motor gently to see if it starts it. If it does, the brushes or the armature in the motor are worn- replace the motor.
2. If that doesn't help wiggle the connector on the motor and the blower motor resistor. There may be burned or loose connections.
3. If you have power on fuse 7 with the key on, then check for power at the blower motor on the blue white wire. If no power on it you have a break in the wire between the fuse and the blower.
4. Next, check for power on the blue black wire. If there is power there that proves there is continuity through the motor(that's good), if not, replace the motor.
5. The blue black wire then goes to the blower resistor. this resistor gives the different blower speeds.
inside the resistor there is a thermal fuse. It isn't replaceable, only the resistor as an assembly.
If the thermal fuse blows it may indicate that the blower motor is beginning to wear out and draw too many amps. And then you may need to replace both the blower and the resistor.
Check with an ohmmeter across the thermal fuse. If it is open circuit, replace the resistor and the blower. If you don't replace the blower it may blow the new resistor again.
6. If it all checks out to this point, ground the blue/red wire at the resistor. If the blower comes on the problem then becomes the blower switch or a break in the wire to the switch.

Whew.. Hope this helps solve the problem, my fingers are sore..Ha.

Thanks for using FixYa.

KL

Dec 04, 2010 | 1996 Isuzu Rodeo

1 Answer

I have somthing wrong with my heater fan it does not work


OK..Assuming the fuse and relay are ok i would kick the lower part of the dash. This sometimes jolts the fan back on. Here is what it could be.
1 fan motor
2 blower motor resistor
3 Blower motor switch

Jan 06, 2010 | 1999 Dodge Stratus

1 Answer

The heater fan on my 2006 Honda Odyssey has failed. The relay and fuses are all OK. I assume the fan is good since the vehicle is a 2006. Please help


the blower power transistor may be bad. (its near the blower motor 4 wires), I would start there. if you connect the blue/black wire to the black, it should run full speed, if it does, replace the transistor.

Oct 16, 2009 | 2006 Honda Odyssey

3 Answers

Htr fuse blown.no heater or blower working.blows fuse instantly


I would have taken it back immediatly and told them that it worked before and oesnt now since they worked on it and you would appreciate it if they at least looked at it.

If they refuse, then never go back and you will have to trace the problem using a voltemeter.

Make sure the fuse is the right Amperage.

Buy a repair manual from a auto parts saled store and see what else connects to that fuse, you could have a bad blower motor, or some other wire that got damaged durring the clutch install.

good luck

Dec 01, 2008 | 2001 Suzuki Grand Vitara

1 Answer

1989 Mercury Tracer Sta. Wgn.


your owner manaul has it. your fuse cover should have chart too.

here is 96 tracer. You also have main fuses under hood.

INTERIOR FUSE JUNCTION PANEL REFERENCE CHART Fuse Fuse Rating Color Protected Components (REAR WIPER) 10A Red Rear wiper and washer motors, heater and A/C relays, daytime running lamps control (Canada), climate control assembly panel illumination HAZARD 15A Blue Front and rear turn signal lamps, turn signal indicator lamp, indicator flasher ROOM 10A (1.9L)
15A (1.8L) Red
Blue Dome and map lamps, safety belt warning chime, ignition key illumination, luggage compartment lamp, vanity mirror lamp, radio chassis (memory), power door lock relay, shift interlock system, powertrain control module (PCM), radio amplifier (memory) ENGINE 15A Blue Fan control (FC) relays, PCM relay RADIO 15A Blue Radio chassis, radio amplifier, remote control mirror, instrument panel illumination (DOOR LOCK) 30A Light Green Power door lock actuators BELT 30A Light Green Passive restraint control module, passive restraint motors (POWER WINDOW) 30A Light Green Window regulator electric drives METER 15A Blue Instrument cluster, backup lamps, rear lamps, speed control system, shift interlock system, safety belt warning chime, passive restraint control module, hazard flasher, PCM (1.8L Canada) WIPER 20A Yellow Windshield wiper motor and windshield washer pump STOP 20A Yellow Stoplamp, horn (1.9L only), rear hi-mount lamp TAIL 15A Blue Parking lamps, cornering lamps, rear lamps, license lamps, compartment lamp, instrument panel illumination (SUN ROOF) 15A Blue Sliding roof panel motor ABS 10A Red Anti-lock brake system (ABS) (1.8L only) (DEFOG) 20A Yellow Rear window defroster HEATER 30A
circuit breaker — A/C blower motor HO2S
(ON INTERIOR FUSE JUNCTION PANEL SIDE) 10A (1.9L)
20A (1.8L) Red
Yellow Heated oxygen sensor (HO2S) CIGAR
(ON INTERIOR FUSE JUNCTION PANEL SIDE) 20A Yellow Cigar lighter knob and element CIGAR 20A Yellow Cigar lighter OBD II 10A Red Data link connector #2 BLOWER 30A Light Green Blower motor relay HORN 20A Yellow Horn (1.8L only)

Aug 10, 2008 | 1989 Mercury Tracer

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