1983 944 heater stays on, where to start ?

Asked by Sep 25, 2016 at 10:39 AM about the 1983 Porsche 944 STD Hatchback

Question type: Maintenance & Repair

dashboard/ center consul removal

4 Answers

58,575

Fan switch,or the reostat is stuck at the blower motor, pull blower fuse to stop temperary untill you find the issue.

1 out of 1 people think this is helpful.

i should have been more stated that heat come out still when fan is off, some kind of flapper stuck open ? and the dash has to be removed to access ? If so where to start ?

1,480

Fan switch on the back of the radiator, up top on the drivers side, has gone bad. Tough to get at, but a common failure.

1,480

I should also mention the vacuum actuated heater control valve at the back of the block on top, is also a common failure point due to old age. Another tough to get at item. Parts should be easily available. To the fan switch problem: the switch itself can be either a two lead harness connector or a 3 lead connector. Pull the connector off to find which switch to order. Most of the older 944's had a two lead connector. Hope you have skinny arms for this job. Good luck.

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