Hello,
I have a similar issue on my Ford Focus Diesel mk2 2007 -- fan blower not working in any of the 4 speeds and dashboard displying "---degC" with the frost red star indication.
All was working fine untill I replaced yesterday my cabin filter and had to unplug the 3 multi-pin plugs from the cabin fuse board in order to make some space to extract the cabin filter.
Replaced filter and fitted the 3 multi-pin plugs back, started engine and checked wipers, lights, radio, etc... When I started engine I noticed that dashboard was showing "---degC" with the frost red star indication. Tried all 4 blower speeds but no fan movement.
Unplugged the 3 multi-pin plugs from the fuse pannel and checked for any bent pins, cables visualy seem not to be damamged, checked all fuses on that board with multimeter and all show continuity, measured the relay marked "heater" from the engine compartment and is ok. Plugged everything back but same behaviour on blower and environmental temperature dashboard display.
Any suggestions are appreciated.
Thanks.
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