HEATER AND VENTILATION 1A-5
DIAGNOSIS
Condition Possible Cause Reference item
Heater fan does • Fan fuse broken Check fuse and for short-circuit
not work when the • Heater resistor faulty Change resistor
switch is "ON" • Fan Motor faulty Change motor
• Faulty connection or poor grounded Repair as necesary
Odd temperature • Control cables broken or interconnected Check cables
output • Air Regulator broken Repair regulator
• Air flow ducts blocked Repair air ducts
• Heater Radiator has leaks or blockages Change radiator
• Heater hoses have leaks or blockages Change sleeves
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