B3A1C

A/C System Temperature - Too High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–167 (est.)

Symptoms

Poor interior cooling
Automatic air conditioning shutdown
Unusual noises from the air conditioning compressor
Increased noise of the cooling fan

Causes

Low refrigerant (freon) level
Air conditioner radiator is dirty or damaged
Air conditioning compressor malfunction
Problems with the cooling fan
Clogged air conditioner condenser
A/C temperature sensor malfunction
Open or short circuit in the air conditioning system wiring harness

How to Fix

Check refrigerant level and top up if necessary
Clean the air conditioner radiator from dirt
Check the operation of the air conditioning compressor
Diagnose and, if necessary, replace the cooling system fan
Check the condition of the air conditioner condenser
Check the A/C temperature sensor and its connection
Check the system wiring harness for damage.

Related codes

B3A1D B3A1E B3A1F