Troubleshooting Air Conditioning Auto
A properly working air conditioner will drop the temperature in the vehicle on average 20-40 degrees cooler than the outside temperature. All of these reasons can be cause for a non working air conditioner and would require the enlisting of a certified mechanic as your next step. Part 2 of 2: Checking outside the car and under the hood
Flip the air conditioning service and furnace circuit breakers in your main electrical panel to the "Off" position. Next, turn off the power switch right at the furnace or air handler. Then yank the disconnect block ( Photo 1 ) and clean the condenser coils ( Photo 2 ).
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Having your car's air conditioning go out suddenly can ruin your day fast. The most common causes of broken air conditioning are leaks or compressor issues. If your air is blowing cool but not cold, the problem could be a clogged filter, cooling fan problem, radiator trouble, or it could simply be that you need to recharge your AC.
An automotive air conditioner's pressure switch cycles the vehicle's compressor on and off when the refrigerant pressure falls below an acceptable level. This protects the compressor from damage. Refrigerant does not wear out or evaporate: only leaking air conditioning systems have low refrigerant levels.
Classic Auto Air is your source for factory air conditioning parts & AC systems for 70's & older Ford, GM, Mopar, Porsche, Custom Street Rods & more.