AC off Due to High Engine Temp (Causes & Solutions)

Did you drive and suddenly noticed that the air conditioning turned off according to the high engine temperature sign on your dashboard? You may be wondering what this means if you should continue driving and how you can solve the basic problem

If so, you are in the right place.

In this article, we will answer all the questions you may have about deactivating the air conditioning due to the high engine temperature control, what it means and what you should do when you see it on your car's dashboard.

Let’s get started!

What Does AC off Due to High Engine Temp Mean?

If you find that there is no AC due to the high temperature of the motor, it means that the PCM (motor computer) is detecting excessive heat or a malfunctioning electric cooling fan. To reduce charging, to prevent more heat, the air conditioner turns off.

This feature is one of the safety measures of your engine programmed in your vehicle's engine control unit (ECU). Deactivate the A / C system ECU if it detects that the engine temperature is too high or low.

In a car with an air conditioning compressor, the compressor drives the engine and wheels, so if the engine is switched off, the compressor also switches off. Assume that there is an incorrect reading that the ECU indicates that the engine temperature is too high or that the reading may be causing something wrong.

In this case, the air conditioner will turn off automatically to help solve the problem. This also helps prevent damage caused by turning on the air conditioning when your car is not running.

If something prevents the radiator cap from sealing properly or leaking at all, the engine does not have enough coolant to circulate the radiator for proper cooling.

If the cooling fan does not work properly, it may be due to a faulty air temperature sensor, which will result in the air conditioning being programmed. The air blower turns on when the air conditioner is on. First and foremost, it must ensure that clean air flows through a condenser that can cool the inside of your car.

Second, it must maintain the correct temperature inside the engine compartment and protect bad parts from overheating.

If the fan does not start for some reason, the motor temperature will also increase. Driving with a hot engine can lead to serious engine damage.

What to Do When Your Car Says AC off Due to High Engine Temp

Before anything else, check your car's thermometer to avoid possible engine damage.

If you notice that the ECO or AC warning light comes on next to the speedometer every hour of driving, there may be a fault in your car's engine.

Start slowing down immediately and pull as soon as it's safe.

If the warning light comes on while driving, it is likely that one of the fans in your engine has stopped working.

Sometimes, when a car's engine starts to overheat when it is not running, your engine's idle speed will immediately increase to keep the temperature to a minimum. This is called "overcooling".

If your car's air conditioning is running on AC due to high engine temperatures, you can check the radiator and cooling fan. See also snakes.

If any of these components are defective or approaching to rupture, contact a mechanic.

If your car is not running properly, repair is the best option if you notice that the cooling system is leaking.

One of the most important things to make sure your air conditioners are running at the highest level is to make sure all the vents are clean. The vents must work properly, and if not, problems such as excessive cooling or heavy wear may occur.

Also, make sure that nothing obstructs the airflow, such as a dirty air filter or a clogged radiator.

If you have checked the above part and there is AC power in your car due to the high engine temperature, ask a certified mechanic to check your engine.

AC off Due to High Engine Temp Safe to Drive?

It is not safe to drive your car when it is said that the air conditioning is switched off due to the high engine temperature. If you see this sign on the dashboard, it means that your car may overheat and damage engine components.

Let's say you see this sign when driving, when approaching the edge of the road, and when checking for a coolant leak from the car. Then take your car to a certified mechanic for proper inspection and repair.

AC off Due to High Engine Temp Quick Fix

Here are some things you can do to quickly fix AC off due to high engine temp

1. Make sure there are no coolant leaks
2. Change the Radiator cap
3. Change the coolant temperature sensor
4. Disconnect the battery for a few minutes, then reconnect it

Frequently Asked Questions – AC off Due to High Engine Temp