Heater fan/cooling fan 2000 land rover disco series 2 doesnt energize....

[Goblin]

2000land rover discovery series 2, heater fan/cooling fan(front and rear unit) will not energize via switch.so far i have done the following.......pulled both fans and tested,changed alll relays, swapped out diode( in front unit fan box)
traced out grounds, all good, swapped out heater cooling control box for a known good unit, all to no aval. control box powers up, fan control bars up from pos 1 thru max, no fan. only thing i have noticed is at the fuse box when i power up the fan switch i loose power from the hot side of the F7 fuse,what am i missing?driveing me nuts here.

 

[joey]

Bad fuse box (Under the Hood)... you can either replace it or run a new fused hot to the fan relay and the switch should still work.

 

[Goblin]

thanx, i have a spare

under bonnet box, will give it a shot and let ya know.which fuse feeds F7 from the underhood box?aux?

 

[joey]

I don't remember off the top of my head which fuse feeds the Heater-A/C fans... I just know I have made a few bypass sets to temporary fix an issue in the winter to keep people warm.

 

[Goblin]

Thanx! much appriciated