[dustinshay77]

Hi. I have a 2000 Disco2 with 75k miles.

This LR is equipped with the rear air option. Recently, both the blower motors for the main a/c and the rear a/c have stopped working.

The blower(s) will not work at any speed, or setting.

I have checked all fuses that seem relative to the system, according to the owners manual. They all seem fine. Also, I located the wiring for the front blower, and connected it to 12V power, and it comes on.

So the problem must be a controls, or electrical issue.

Can anyone relate to, or solve this problem?

I would really like to avoid the dealer.
THANKS IN ADVANCE FOR ANY HELP OR ADVICE.

 

[Disco Mike]

I believe there is a relay, probably in the fuse box next to your battery, you might want to check that first.
Mike J.

 

[Rovin4life]

if it isnt a fuse problem It might be a head unit problem. Especially if neither works.

 

[mlbcsx]

Its not the head unit. I have the same problem and just replaced the head unit with a used one from ebay. Same problem. I did note however that when the fan is switched on I am losing ground. I am assuming there is a ground relay somewhere thats bad. I am in search for a wiring diagram to help me in my search. I will save this page and keep you updated.

Update: My earth grounds are all fine. How ever I did note that I only have 6 volts of output from from fuses 6 and 7 in the passenger side fuse panel. This needs to be 13 volts or more. The 100 amp fuseable link #4 under the hood supplies the power to fuses 6 and 7, which only feed the front and rear air. I torn down the fuse panel and ohmed the input and output for those fuses. To my findings this appears to be the problem, it didnt ohm. It appears I am losing voltage through the fuse panel. The brown with pink stripe wire supplying power did ohm out.

What you need to do is check the voltage output from fuse 6 and 7. Anything less than 12v is not enough to power the blower motors.

Quick easy fix: Cut the brown/pink input wire going into the fuse panel. 2: Cut he yellow/green wire( supply for rear blower) and the white/red (front blower supply) out put wires and go to advance and get some kind od fusible link to connect these thre wires. The rear blower takes a 25amp and the front takes a 3 amp. So my conclusion is that a dual inline fusable link will do the job. Then tie strap them to a wiring harness in beside the fuse panel where you gain access the fuses.

Hope that helps.