If you’ve been having trouble with your car’s air conditioner lately, there are a few reasons it could not be working properly. Here are four reasons your BMW’s air conditioner is not working. A/C Leak. One of the most common reasons your BMW’s air conditioner isn’t working is because of an A/C leak.
4 if everything passes, the DME signals "OK to start A/C" back to the HVAC & simultaneously increases idle speed a bit anticipating the A/C compressor load. 5 the HVAC panel powers the compressor clutch. 6 the compressor engages & cold air starts. In my case, the inop aux fan caused a failure at step 3.
1. Yes, the mechanical fan is out, and in it's place is the Behr electrical fan, but the Aux fan has yet to be removed to troubleshoot the lack of normal fan operation. 2. Yes, I have installed the 5 speed Behr fan in the proper place between the radiator and the engine where the Mechanical fan used to reside. 3.
Step 1. Check the power. If you suspect the fan motor is bad, the first thing you should check is the power to the motor and the power to the air conditioning unit. Locate the circuit breaker and ensure it hasn’t tripped. If the power is fine, check to see if there is proper voltage.
The most common causes that hinders normal operation of air conditioning system on your BMW 228i are dirty cabin air filter, refrigerant leak, dirty or clogged condenser, dirty or clogged evaporator, bad blower motor, defective compressor, faulty blend door actuator or any fault in the electrical system. 1. Dirty cabin air filter.
The most common causes for AC not cooling properly in BMW X1 are low or overcharged refrigerant, compressor malfunction, clogged cabin air filter, dirty condenser or evaporator coils, dirty or sluggish blower motor, and bad fuse or relay. Less common causes are clogged expansion valve or orifice tube, overcharged oil, faulty blend door actuator
HVAC fan doesn’t work at all. In BMW cars, the blower motor resistor often overheats due to incorrect current measurements implemented during the design and engineering of the vehicles. This can cause the HVAC fan to not work at all due to motor failure, and it is unable to blow any air out of the vents. This can be highly concerning during
2003 bmw x5 compressor won't come on, replaced condensor fan , replaced clutch fan, ac sensor , when jumped it comes on. please help me, have ordered ac insturment panel, will replace in 3 hours. … read more
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bmw ac fan not working
