What to do if your air conditioner is inoperative after battery change?
What to do if your air conditioner is inoperative after battery change?
When i put the originial back in the A/C wasnt working at all. Before the A/C was fine. I disconnected the battery for 45 minutes and disconnected the AC clutch relay for 3 minutes after connecting battery. I turned on the car, Didnt start the engine. Then i checked the A/C, which started right up.
What happens if you lose the blower motor relay?
The blower motor is the component responsible for pushing air through the vents of your vehicle’s heating and air conditioning systems. Without it, the AC system will not be able to circulate any heated or cooled air. The blower motor relay controls the current used to power the blower motor,…
What happens if you have a bad blower motor?
The blower motor is the component responsible for pushing air through the vents of your vehicle’s heating and air conditioning systems. Without it, the AC system will not be able to circulate any heated or cooled air.
Where is the blower control switch on the dashboard?
The blower control switch on the dashboard controls the circuit flow of the blower motor to adjust the voltage from low, to medium, to medium-high, to high. When on high, the circuit bypasses the blower resistor.
Why does my car blower motor not shut off?
If you have a vehicle with climate control system and a variable speed blower motor and the blower motor won’t shut off and stays on HIGH with the car turned off and the key out, chances are the blower motor motor control processor is toast or the HVAC control module is damaged.
What to do if your climate controlled blower wont shut off?
If your climate controlled blower processor is shot, be prepared to spend mucho bucks for a replacement. But before you start throwing expensive parts at the problem, you’ll have to do some checking. Start by testing the gray/black wire at the blower motor control processor. First, try grounding the wire. Then try removing it.
Where is the relay on a blower motor?
That relay should be in the under hood fuse/relay box (under hood, left side, behind battery). Starting with the high speed relay, pull it out and see if the fan turns off. Replace the one that causes the fan to go off when removed. I have attached images to help you.
When to replace the blower motor control module?
Important: Replace the blower motor control module if the vehicle experienced a blower motor control module failure in extremely cold ambient temperature conditions. Technicians are to replace the blower motor control module, also called the Linear Power Module (LPM), with the P/N listed below.
Why does my AC not turn on after a battery swap?
Immediately afterward, the controls would only blow heat through the defrost setting, no matter what the dial was set to. Also, when I tried the AC the light on the button would just blink and never turn the AC on. Its a real pain in the butt that this happened just from a battery swap!!! I’ve never heard of that problem.
How do you replace battery in Mercedes C class?
Make sure battery is properly seated. Insert the hold-down bracket into the battery well on the right side of the battery. You may have to drop the bracket into the well, and then reach in to position it correctly. Place the hold-down nuts into position on both sides, and use your ratchet, 10mm socket as well as extension to tighten the nuts.
Why is the AC not working in my car?
Hello. If you recently serviced the electrical system and now your AC is no longer working then it may be possible that the issue is related to the work. The first thing I would do is check the vehicle’s fuses and relays. It may be possible that one of the fuses or relays blew when the battery or alternator were disconnected.
When i put the originial back in the A/C wasnt working at all. Before the A/C was fine. I disconnected the battery for 45 minutes and disconnected the AC clutch relay for 3 minutes after connecting battery. I turned on the car, Didnt start the engine. Then i checked the A/C, which started right up.
Immediately afterward, the controls would only blow heat through the defrost setting, no matter what the dial was set to. Also, when I tried the AC the light on the button would just blink and never turn the AC on. Its a real pain in the butt that this happened just from a battery swap!!! I’ve never heard of that problem.
Make sure battery is properly seated. Insert the hold-down bracket into the battery well on the right side of the battery. You may have to drop the bracket into the well, and then reach in to position it correctly. Place the hold-down nuts into position on both sides, and use your ratchet, 10mm socket as well as extension to tighten the nuts.
What to do when your AC won’t turn on?
Try taking out the fuse for the HVAC module. It’s in the fuse panel above the glove box. Remove it, wait a few minutes, then put the fuse back in. Start the car, but DO NOT TOUCH the AC controls. All the motors for the AC mode and heater doors will recalibrate. After a few minutes, then adjust the HVAC settings and see if it fixes it.
