Just as the title says the a/c and heater don't work. I have a 99 DiscoII. I've checked the blower motor, ran a direct current and it works that way. Not the resistor, as I believe the Dan should work on highest setting. When I turn on the ECU I can hear the compressor kick on so not that. I've just replaced the ECU in the dash thinking that was it and still no go. Interestingly, my sunroofs also stopped working in the same week. What the heck do I check next?
