AC Thermistor Replacement at your home or office.

Our certified mechanics come to you · Backed by our 12-month, 12,000-mile warranty · Get a fair and transparent estimate upfront


Car AC Thermistor Replacement Service

What is the AC Thermistor all about?

Your car’s air conditioning system is actually very complex, and is comprised of a number of essential components. One of the most crucial parts is the AC thermistor. Thermistors are used in all air conditioning applications, from your car to the refrigerator in your home. Essentially, they monitor temperature and control the operation of the system. They work on the basis of resistance – the thermistor’s resistance reduces as heat increases, which allows the car’s air conditioning to cool properly.

Thermistors are sensitive to a wide range of factors, including jostling, dirt and debris. Even a coating of dust can compromise operation and throw off the thermistor’s readings. When this happens, your air conditioner will not work properly. The most common problem is a lack of cooling – the system blows cool air, but will not get cold.

Keep in mind:

  • The AC thermistor is not inspected during normal maintenance.
  • The AC thermistor is not generally inspected during standard evac/recharge services.
  • Troubleshooting thermistor functionality requires experience in both electrical components and AC systems.

How it's done:

  • The AC thermistor is verified to see if it needs to be replaced
  • The defective AC thermistor is removed
  • The new AC thermistor is installed
  • The AC thermistor is tested for operation
  • The vehicle is tested to ensure proper operation of the AC thermistor

Our recommendation:

When you turn on your air conditioning, you expect it to blow cold air for as long as necessary, but if your thermistor is malfunctioning, it might blow cold only for a little while, or not at all. Have any AC malfunction or erroneous operation professionally diagnosed by one of our expert mechanics, and replace the AC thermistor if necessary.

What common symptoms indicate you may need to replace the AC Thermistor?

  • AC blows cold only for a little while
  • AC blows only cool air
  • AC blower eventually stops completely

How important is this service?

While having a working air conditioner isn’t essential to vehicle operation, it is an important convenience feature, particularly during the summer months. Thermistor malfunctions can compromise operation and mimic many other conditions, including low refrigerant. Have a faulty AC thermistor replaced as soon as it is practical.

Fast and easy Car AC Thermistor Replacement service at your home or office.


Recent articles & questions

How to Get an Illinois Driver's Permit
Illinois Illinois requires all underage drivers to participate in a Graduated Driver Licensing program, which most states require. This program states that those under 18 must obtain a learner’s permit, that slowly graduates to a full license as the driver...
How to Adjust a Trunk Latch
Nothing Nothing is worse than having a trunk that does not work correctly - whether it doesn’t close, or must be tapped, or the latch button used repeatedly just to get the trunk to open. Trunk latches (https://www.yourmechanic.com/parts/trunk-latch) are made...
B1993 OBD-II Trouble Code: Driver Side Side-Mount Air Bag Circuit Short to Ground
Trouble code B1993 means that the PCM received a voltage signal from the side-mount air bag circuit. The SRS warning light may illuminate.

Transmission in limp mode

The transmission control module (TCM) takes inputs from numerous sensors. It then uses this information to control various transmission related outputs such as shift solenoids and the torque converter clutch. The TCM will go into limp mode when it loses...

2.5L 2.7L L LS 5 SPEED AIR INTAKE KIT + FILTER

Yes. This will replace your existing filter and housing. If you need help with this, a professional from YourMechanic can come to you to replace or install the air intake (https://www.yourmechanic.com/services/cold-air-intake-replacement) for you.

Hi 2005 nissan fronter stalls well dreving and thin the slip liegh coms on but it starts agen

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com