Used Heater AC Control

We offer used heater AC control units. The Heater AC Control first appeared in the 1930s in the US on cars built by Packard. The unit it used was fitted after the car was built, so it took up a lot of space, and was expensive to install and had unreliable plumbing. More successful was Chrysler’s air conditioning, which appeared in the 1950s, while US firm Nash introduced its own more reliable system in the same decade.

The Heater/AC Control has become standard equipment on nearly every new car on sale today.  Operated by an AC button on the dashboard between the passenger and driver seat, the air conditioning system is able to heat or cool air flowing into the car.

Warm temperatures are controlled as they are in a standard car heater, but to cool the air, the car is fitted with an additional AC compressor under the bonnet that directs air to a condenser. This then charges the air with refrigerant to cool it down, and the air is then sent through the air vents in its chilled state. Like a heater system, there’s a control to set how hot or cold you want the cabin, while a separate AC button allows you to activate and deactivate the air conditioning independently.

The heater is the most basic form of HVAC (Heating Ventilation and air conditioning) that’s on offer in a car. You’ll find it on the most basic cars on sale, and it simply uses a control on the dashboard to warm the air coming into the car. This is heated by using engine heat as well as a heater element in the engine bay that warms air as it passes through.

The major difference between air conditioning and climate control is that the latter allows the occupants to set a desired temperature, and the system automatically maintains that temperature as the conditions outside the car change.

Symptoms of a Bad or Failing AC Control Module

1. Inconsistent cooling. Because the AC control module controls and regulates all of the functions of the system, you may begin to notice cooling inconsistencies when there is a problem. 

2. Out-of-date software updates. 

3. Uneven air distribution.