Skip the auto shop - Our mechanics make house calls

Q: I

asked by on

Why is my a/c warm at random, I note that If I turn the car off it gets cold again. I though I smelled what appeared to be mold too?The Avalon has 38K just got it.

A: Hello there, a few things can cause the AC ...

Hello there, a few things can cause the AC to intermittently work. The most common would be the AC condenser, AC fan, low Freon, or a failing temperature control module.

Depending on how humid your area is, mold growing in the AC ducting is not uncommon. Mold forms often with cars with the automatic temperature cars where the fan is left on re-circulation at all times. If you decide to get this fixed, I’d recommend getting some help from a qualified technician, such as one from YourMechanic, who will be able to diagnose your AC fault and perform any repairs required.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: When do the rear wheel bearings need repacking?

The rear wheel bearings on this model year of the Land Cruiser are greased at assembly and permanently sealed. The bearing itself is then pressed into a carrier or "bearing case" which of course is not directly accessible. If a...

Q: How can I tell if it's the throttle body or the transmission at fault?

Hi and thanks for contacting YourMechanic. Check the fluid to the transmission, and look at the color of the transmission oil and see if it is red or dark red. If it is dark red (varnished), then change the oil...

Q: How likely is it that a transmission could be blown after getting towed for a faulty shifter wire?

Hi there. If the transmission shift cable broke, but another mechanic is telling you that the transmission itself is broken, I would highly recommend a second opinion. In most cases, it's one or the other that cause the symptoms you've...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.