Nothing beats the blow of warm air from your car's air conditioning unit during a cold, breezy morning. But what if your Chevrolet C1500 Suburban a/c heater control starts getting defective and only releases cold air even during winter days? Sounds like a huge dilemma, right? This is a common concern among car owners, so we have decided to come up with some tips on how you can spot the problems on your Suburban's a/c heater control.
Sometimes, people think of the worst when something seems to wrong with their cars. A lot of car owners immediately assume that the heater control needs replacement when in fact, the only reason why the air conditioning unit is blowing cold air all the time is because there is insufficient coolant on the reservoir. Vehicles are supposed to maintain a certain amount of coolant, which gets diverted to the heater, in order to release warm air. But if there is not enough antifreeze on the car, your vehicle surely won't be able to produce warm air for you.
Blown fuse and wirings
If you have made sure that there is enough coolant on the reservoir but the Chevrolet C1500 Suburban a/c heater control still seems busted, the problem may be caused by a blown or burned out fuse. Find the fuse box on your Suburban and look for the particular fuse for your heater control. Check of there are signs of burn on the fuse. If you see them, then you can safely say that this is the culprit behind your heater control issues.
Defective heater core
The heater core is very vital in the release of warm air in the Suburban. The antifreeze substance travels from the ducts to the heater core by passing through the hoses, which are connected to the firewall on the system. However, if the heater core is busted, it will be impossible for the car air conditioning unit to produce warm air for the passengers. Inspect the heater core of your Suburban by touching the hoses and checking if they are hot enough. If not, it means that heat is not diverted to the core and that the air conditioning unit won't be able to disperse warm air.