Page 1098 - Workshop Manual - Aumark (BJ1051)

51-6
Heater and air conditioner- heater and air conditioner

3. the refrigeration is not enough

symptom Suspect area Reference
1. harness (poor contact) -
2. relay (poor contact) -
3. air volume switch (damaged) Chapter 73 instrument
panel/combination meter/cigar lighter-
instrument panel, replacement

Chapter 51 heater and air conditioner-
The air volume is abnormal
4. adjustable resistance (damaged) air blower, replacement
Chapter 51 heater and air conditioner-
5. air blower (poor internal contact) air blower, replacement

6. air flue (blocked) Chapter 51 heater and air conditioner-
air flue, replacement
1. electromagnetic clutch (slippery) -
2. belt (slippery) -
3. harness (poor contact) -
4. compressor (damaged) Chapter 51 heater and air conditioner-
The air volume is normal, but the air-conditioner compressor,
compressor doesn’t operate normally.
replacement
5. reservoir (blocked) Chapter 51 heater and air conditioner-
reservoir, replacement
1. refrigerant (leaked) Chapter 51 heater and air conditioner-
refrigerant, on-vehicle inspection

Chapter 51 heater and air conditioner-
51 The pressure at the high-pressure and 2. expansion valve (the opening is evaporator, replacement
low-pressure sides is low. too small or blocked)
Chapter 51 heater and air conditioner-
3. reservoir (the outlet is blocked) reservoir, replacement

Chapter 51 heater and air conditioner-
4. evaporator (frosted on the surface) refrigerant, on-vehicle inspection
1. refrigerant (too much) Chapter 51 heater and air conditioner-
refrigerant, on-vehicle inspection

Chapter 51 heater and air conditioner-
2. air is blended into the system refrigerant, on-vehicle inspection
The pressure at the high-pressure and
low-pressure sides is high. -

3. condenser (the surface is covered Chapter 51 heater and air conditioner-
with dirt) evaporator, replacement
4. expansion valve (the opening is
too big)
1. compressor (damaged) Chapter 51 heater and air conditioner-
The high pressure is low and the low air-conditioner compressor,
pressure is high
replacement

Page 1098