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1997 993 heating and ventilation

Heating and Ventilation

Vehicle Information: Year: 1007; Body Type: Targa; Total Mileage: 47000;

Only hot air is emitted from center panel vents once the engine is warm, with oil temps off the peg- no matter where the temp dial is set, or where the horizontal slide switches are positioned.The ambient temps have been cold here lately, but hot air is pouring out long after the cabin has warmed up, and there is no modulation of the temp despite repositioning the temp switch.Is it likely to be a faulty temp sensor?? Will this present a fault code?? Could it be blocked air intake vents?? I am so far unable to locate these.As always, your help is enormously appreciated and I thank you for your incredible willingness to help all of us.

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