Discovery Heater issues (electrical)

[disco_al]

Now, on my blue disco that's having a "refurb", the heater has always posed me a puzzler.

Basically when i got it, some kind "technician" had cut the supply wire to the heater relay, and fed a live feed from the fusebox so that the blower works. The air recirculation button has never done anything, neither has the air con button.

So far i have replaced with known working units (from my old disco)

Heater motor (old one worked ok, but thought i'd change it anyway - just in case)

Wiring from motor to control panel

Air recir and air con switches

Fuse box and MFU

However, upon powering up the ignition (with the dash out) nothing works, not even the blower control.

Any ideas are welcomed, i haven't had time to check with multimeter yet due to it being rather wet outside, and not having any cover to work under although as stated, i know the replacements work

[SmasherWebbs]

Your going to have to either get wet or wait and use the multi meter. You will probably find its a bad connection somewhere or your not getting a earth.

[disco_al]

turned out to be the ignition load relay after all the investigation.....swappped for a known good one, ad everything's peachy