Fan will not turn off climate control - Cars & Trucks

nothing to do with the ac charge
the fan not running is a problem so check out the relays , fuses and temperature sensors that control that fan

If you have a fan that has different speed settings (1234, or low med high etc) and the only one that works is high - then the blower resistor pack has failed. If you have a climate control unit (where you just pick a temp you want) then the fan is controlled by the heating system and it sets fan speed. If you have climate control style try lowering the temp to a lower setting (current temp in vehicle) and see if fan slows down. If not then climate control unit or fan resistor bad. If dial type and you get nothing on lower settings (only high works like mentioned above) you need to change blower resistor. It is located under dash near the fan itself. Look for small unit bolted in duct near fan with wire plug going to it.

It can be issue with climate control module or its faulty relays or fan wiring.
Click the link below to troubleshoot the problem step by step with diagrams:----
http://www.gresk.com/2013/09/climate-control-will-not-turn-off.html
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This will help.
Thanks.

Based on the limited information provided, it would appear you have a bad climate control control board. This controls all heater/AC functions including climate control. If you're unable to change temperatures and/or fan speeds, the board is most likely bad and needs replacement.

check for fuse compartament and look under cluster controls or interior climate controls see if any of them are burn out, check for blower fan and test motor or replace motor.

BLOWER FAN RELAY FAILURE

If your van has climate control try switching from auto to manual, a lot of auto climate controls "Wait for warm up" before turning on fan for heater.

time for a new unit broke inside where gears move temp doors and such

could possibly be a vaccum leak

I have the same problem on a 1988 lesaber Climate control and was told to change the climate control as the was the problem. A have the climate control but have a problem to take of the cover that covers the control and the radio. If any one can tell me how to remove it I will put in the new control and see if that will stope the fann.Thanks