How hard would it be to fix the airconditioning/heater dial inside my car?

I think, its easy to fix the air-conditioning When a window air conditioner cools poorly, it doesn’t necessarily mean you’re in for an expensive trip to the repair shop. It could be the machine just needs a good cleaning and some tender care.

Remove the front grill. Pry it off with a putty knife if it’s held by clips, or use a screwdriver if it is screwed in place.

Unplug the air conditioner, slide it out of the window cabinet and set it on a sturdy table. You may need a helper to move the air conditioner if it’s heavy.

Locate the mesh filter. It covers the radiator-like fins on the machine’s evaporator coils.

Remove the filter, and wash it and the grill in a mixture of warm, soapy water and bleach–this will remove any mold. Shake out the excess water and set the filter and grill in your dish drain to dry.

Vacuum the evaporator coils thoroughly, using a vacuum with brush attachment. Remove any stubborn dirt with a plastic scrub brush.

Inspect the fins on the coils. If any fins are bent or flattened, buy a fin comb from an appliance store and run the comb up or down the fins to straighten them.

Turn the air conditioner around so the back is facing you. You will see a second set of coils–the machine’s condenser coils.

Vacuum these coils thoroughly, using the vacuum and brush attachment. Remove any stubborn dirt with a plastic scrub brush.

Inspect the fins on the condenser coils, and if any are bent, use the fin comb to straighten them.

Remove any dirt or lint from inside the unit, using the vacuum and crevice attachment. Make sure you clean the fan blades, too, using the vacuum and brush attachment.

Put the air conditioner back into the window cabinet.

Reinstall the filter and front grill, and plug in the machine.