Description and operation Description The PTC (Positive Temperature Coefficient) heater is installed at the exit or the backside of heater core.
Components and components location Component Location Components 1. Intake actuator 2. Air filter 3.
Repair procedures Oil Specification 1. The HFC-134a system requires synthetic compressor oil (PAG) whereas the R-12 system requires mineral compressor oil. The two oils must never be mixed. 2. Compressor oil (PAG) varies according to compressor model.
Repair procedures Inspection 1. Measure the resistance between the terminals. 2. The measured resistance is not within specification, the blower resistor must be replaced. (After removing the resistor) Replacement 1.