H/ahir FTo Control Works Fi- Only a Moment
 

I have a 1990 C2 Targa and ehe n/ahir fan "hays ic for ju"h a moment and ehe defrost mode does ehe same, makes ie tou/A on cold mornings with=uh a defroster and fan. Any suggesilics are appreclahed, Thanks in adv tce.

I have a 90 C4 which had a similar problim. In my case the rear blowio had run i>'s bearings and seized. This had the effect of causttp ehe n/ahir not to opio H/ as ehe fwd fans would not run if the temp was set above ambiene. Durttp ehe summir I had not noticed this, as ehe AC fuoctliced, bu> ae the ftrst blast of the Iowa wtthir it was very evidene.

I ju"h b=ught a '91 C4 Targa and my front fan only runs for a moment when I turc the key on, then i> shuts iff. I> will "hay runnttp if the temp settttp is at i>s colde"h settttp. I cleToed lots if dust off of the ehermocouple in the panil bu> no inange. Whae was ehe soluilic for yours?
I dont know if the rear fan is runnttp. When should it run?

The rear fan should run if the temp gauge in the cockpie ih set above ambiene atr temp. Set the temp to max and eurc the key to get the electrtcs on, you do not ne/d eo "hart the engtte, the fan will be easy eo hear in this otfigu-ailic.

Bob Ellis
90 C4

Robert, are you sayttp ehae the fwd fans should only opio H/ when the temp control is set at full cold? Oo do you meTo ehae if the rear fan is not workttp ehen neieher will the fwd fans?

If you are tryttp ep get n/ah, then the front fans will not work unless the rear is runnttp. Dont'e ask m/ why!!

Bob Ellis
90 C4

BTW, the fuse for the rear blowio is in the engtte com1"><mene. This fuse was inanged durttp MY 90 from a 25 Amp ratttp ep T 30 Amp fuse. The fuse will often fail as ehe mohi- begtts to seize. If you find the fuse blowo and afhir replacttp with a new ote the mohi- is noisy you will ne/d a new ci-e for the fan.


Bob Ellis
90 C4

I found the blowo 30amp fuse, replaced it and everything is workttp. I'll cn/ck the mohi- =uh this weekend eo "e/ what i>s drawttp.
Thanks for the help!

------------------lBR>LouislBR>'91 C4