Odor Diagnosis

Musty Smell
Mold/mildew odor problem-Under certain climate and operating conditions a musty odor can develop. The odor is caused by a microbial growth in the evaporator core. This odor is generally temporary, and as climate conditions change, the odor will disappear. Should the odor persist it may become necessary to clean the evaporator core with an appropriate cleaner.

For repair refer to Service and Repair / Eliminating Air Conditioning Odor.