If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
heater blower fault
can anyone put me in the direction for where the heater blower relay is on my
bmw e38 RHD 1995 -- posted from http://www.motorsforum.com/bmw/heate...ult-38141-.htm using MotorsForum's Web, RSS and Social Media Interface to alt.autos.bmw and other automotive groups |
Ads |
#2
|
|||
|
|||
heater blower fault
jonjo777 wrote:
> can anyone put me in the direction for where the heater blower relay is > on my > bmw e38 RHD 1995 It won't be a relay. Google for "E38 hedgehog" (and probably in the similar location on an E39); it's a PWM controller for the fan motor. And check realoem.com; that'll give you diagrams that should help. -- Scott |
#3
|
|||
|
|||
heater blower fault
replying to Scott M , Jonjo777 wrote:
> no_one wrote: > > It won't be a relay. Google for "E38 hedgehog" (and probably in the > similar location on an E39); it's a PWM controller for the fan motor. > And check realoem.com; that'll give you diagrams that should help. Hi Scott thanks for info the relay where is this located on my e 36 this blower stopped working and after it worked for a while just trying to trace from fuse to motor -- posted from http://www.motorsforum.com/bmw/heate...ult-38141-.htm using MotorsForum's Web, RSS and Social Media Interface to alt.autos.bmw and other automotive groups |
#4
|
|||
|
|||
heater blower fault
"jonjo777" > wrote in message roups.com... > can anyone put me in the direction for where the heater blower relay is on > my > bmw e38 RHD 1995 > > -- > posted from http://www.motorsforum.com/bmw/heate...ult-38141-.htm > using MotorsForum's Web, RSS and Social Media Interface to > alt.autos.bmw and other automotive groups > If the blower worked at HIGH speed longer than at other speeds, the most probable fault is the Final Stage Resistor. This resistor cuts the voltage to the motor to cause it to run at the various speeds, and the heat it generates tends to cook it over time. The typical symptom is that LO will fail first, and HI fails last. |
#5
|
|||
|
|||
heater blower fault
replying to Jonjo777, Jonjo777 wrote:
> Jonjo777 wrote: > > Hi Scott thanks for info the relay where is this located on my e 36 this blower > stopped working and after it worked for a while just trying to trace from fuse > to motor E38 sorry -- posted from http://www.motorsforum.com/bmw/heate...ult-38141-.htm using MotorsForum's Web, RSS and Social Media Interface to alt.autos.bmw and other automotive groups |
#6
|
|||
|
|||
heater blower fault
Scott M > wrote:
>jonjo777 wrote: >> can anyone put me in the direction for where the heater blower relay is >> on my >> bmw e38 RHD 1995 > >It won't be a relay. Google for "E38 hedgehog" (and probably in the >similar location on an E39); it's a PWM controller for the fan motor. Actually, it seems to be a linear controller, not a PWM device. Which is why it's got all those cooling fins and still overheats and fails. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#7
|
|||
|
|||
heater blower fault
replying to Scott M , Jonjo777 wrote:
> no_one wrote: > > It won't be a relay. Google for "E38 hedgehog" (and probably in the > similar location on an E39); it's a PWM controller for the fan motor. > And check realoem.com; that'll give you diagrams that should help. > -- > Scott **hi Scott what are these would These be be anything to do with final stage of the blower .i did make a start to remove the top dash after removing three 13 mm bolts from side and a few screws along the front then a standstill all front was loose but doesn't want to come out have I mist any is to why the dash seems stuck |
#8
|
|||
|
|||
heater blower fault
Jonjo777 wrote:
> replying to Scott M , Jonjo777 wrote: >> no_one wrote: >> >> It won't be a relay. Google for "E38 hedgehog" (and probably in the >> similar location on an E39); it's a PWM controller for the fan motor. >> And check realoem.com; that'll give you diagrams that should help. -- >> Scott > > > **hi Scott what are these would > These be be anything to do with final stage of the blower .i did make a > start > to remove the top dash after removing three 13 mm bolts from side and a few > screws along the front then a standstill all front was loose but doesn't > want > to come out have I mist any is to why the dash seems stuck > > > Those are the direction flap control motors. Here's a guide to replacing it, although for a LHD car: http://www.bavariandominator.co.uk/p...tor_137123.cfm -- Scott Where are we going and why am I in this handbasket? |
#9
|
|||
|
|||
heater blower fault
replying to Jeff Strickland , Jonjo777 wrote:
> crwlrjeff wrote: > > If the blower worked at HIGH speed longer than at other speeds, the most > probable fault is the Final Stage Resistor. This resistor cuts the voltage > to the motor to cause it to run at the various speeds, and the heat it > generates tends to cook it over time. The typical symptom is that LO will > fail first, and HI fails last. Hi mate I now have the dash out and located the final stage resistor can I test at the plug for power to this with a amp mt thanks john -- posted from http://www.motorsforum.com/bmw/heate...ult-38141-.htm using MotorsForum's Web, RSS and Social Media Interface to alt.autos.bmw and other automotive groups |
#10
|
|||
|
|||
heater blower fault
"Jonjo777" > wrote in message oups.com... > replying to Jeff Strickland , Jonjo777 wrote: >> crwlrjeff wrote: >> >> If the blower worked at HIGH speed longer than at other speeds, the most >> probable fault is the Final Stage Resistor. This resistor cuts the >> voltage to the motor to cause it to run at the various speeds, and the >> heat it generates tends to cook it over time. The typical symptom is >> that LO will fail first, and HI fails last. > > > Hi mate I now have the dash out and located the final stage resistor can I > test at the plug for power to this with a amp mt thanks john > If the motor failed as described, the FSR is toast. Just buy a new one. If the motor stopped working at low and medium speeds before it stopped working at high speed, the FSR went out. I'm sure there should be a test of the FSR, but I do not know what it is, for example I cannot say to connect the meter lead to Pin 1 and check for continuity to Pins 2, 3, and 4. I'm sure the test is something like that, but I can't say for sure it is that. The blower motor comes out into the engine bay, you do not get to it by removing the dash board. The FSR lives on the left side of the transmission hump, on a LHD car, it's just to the right of the gas pedal. My Bentley manual does not give a test procedure for checking the continuity through the FSR. If I can read my schematic at all, Pin 4 is the common pin to all of the speeds, so you want continuity from Pin 4 to each of the other pins. Pin 4 has a GRN/GRY wire going to it (actually, the flow of electricity is that the wire comes out). There is a thermal protection switch (heat fuse) that will open, and this causes all speeds except MAX to fail. The BLK wire (Pin 3) is Low, GRN (Pin 2) is Med, and BLU (Pin 1) is High. GRN/GRY (Pin 4) is referred to as Max. Speeds on the control dial are 1 through 4, where 1 is low and 4 is max. (I am using the schematic for a '94 325, and it is the schematic for all cars from '93 to '95, except the ti.) |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Heater Blower | [email protected] | Jeep | 1 | January 15th 09 04:46 AM |
530 air con blower fault | boydeste | BMW | 0 | May 22nd 08 10:22 PM |
Heater Blower in '88 YJ | Micah | Jeep | 1 | December 15th 06 04:47 PM |
heater fan/blower | tremor | Chrysler | 1 | January 27th 06 03:07 PM |
Heater blower fan | John | Chrysler | 16 | October 23rd 04 09:13 PM |