Vehicle & Technical > Range Rover

RRC Fan Speed Resistors

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dod51e:
Having swapped the heater matrix/box on the RRC I have identified that there must be a problem with the resistors as the fan only works on setting III.  I & II nothing.  The old box/fan was the same and started doing this about a week ago.

The Haynes manual wiring diagram shows two resitors between the switch and the relay prior to feeding the fan motor.  The fan has a 5pin connector that only used two wired.  The green, white and orange wires connect to a resistor in the fan housing but nothing else.  Just a positive feed and negative to earth wire at the connector.  Both boxes have the same internals.

Does anyone know where and what these resistors look like as I would like to have the function of I & II speeds?

gingernutsv8:
swap the switch first as i had this problem an it turned out to be the switch

Bowie:
It's unlikely to be the switch, as I assume you changed the switch over when you swapped heaters...?

The resistor is under the windscreen scuttle panel, you can access it by pulling out the passenger side vent, it's a little awkward, but perfectly doable, I did mine earlier this year.

The connector plug is normally inside the dash, and *may* pull through, if not it is a case of removing the vent surround trim inside until you can see it (it's a 5 pin red block) and poking it up through the gromit, then detatch and reconnect the new one.

Can I suggest, rather than using the very pricey one from LR, pick up one of these instead : http://britpart.com/Accessory.asp?PageRef=4&AccessoryRef=1232&AccessoryVehicleRef=

Yes I know it is Britpart, but they are made somewhere else and resold over here, manufacturers website is here:

http://www.roverparts.com/Instructions/RRC_A-C_Heater_Blower_Resistor_PRC8010_1.cfm

HTH.

dod51e:

--- Quote from: Bowie on December 01, 2010, 10:51:02 ---It's unlikely to be the switch, as I assume you changed the switch over when you swapped heaters...?

The resistor is under the windscreen scuttle panel, you can access it by pulling out the passenger side vent, it's a little awkward, but perfectly doable, I did mine earlier this year.

The connector plug is normally inside the dash, and *may* pull through, if not it is a case of removing the vent surround trim inside until you can see it (it's a 5 pin red block) and poking it up through the gromit, then detatch and reconnect the new one.

Can I suggest, rather than using the very pricey one from LR, pick up one of these instead : http://britpart.com/Accessory.asp?PageRef=4&AccessoryRef=1232&AccessoryVehicleRef=

Yes I know it is Britpart, but they are made somewhere else and resold over here, manufacturers website is here:

http://www.roverparts.com/Instructions/RRC_A-C_Heater_Blower_Resistor_PRC8010_1.cfm

HTH.

--- End quote ---
This seems like the problem.  Just wish I had asked before I put the damn thing back together.  Did yours have AC?  Is it the facia vent you remove or the windscreen vent?

Cheers

Mark

Bowie:
Yep, mine has AC, it's the fascia vent, with the nice wood surround :)

Behind that and a few hundred screws later you can get to it with one hand usually.

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