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L400 Electronic Heater/AC controller MB946619

Posted: Fri Dec 30, 2016 9:17 pm
by frostyfriday
Does anyone have any schematics for the electronic heater/AC controller part number MB946619

The display has quit. I think I have narrowed it down to a transistor in the high voltage driver circuit for the display but a schematic would be really useful at this stage...

The unit still works, just no display so it is hard to know exactly what mode I am in.

L400 Electronic Heater/AC controller MB946619

Posted: Sat Dec 31, 2016 6:35 pm
by frostyfriday
It's fixed - for now...

See this link for details: viewtopic.php?f=64&t=18001