Page 227 - Workshop Manual - Aumark (BJ1051)

04-83
Diagnosis-illlumination

Symptom Suspected area Refer to

1. Reservoir (inlet or internally Chapter 51 Heater and Air
clogged) Conditioner-Reservoir, Replacement

2. Condenser (clogged) Chapter 51 Heater and Air
High pressure is too high while low Conditioner-Condenser, Replacement
pressure is too low.
3. Compressor outlet-reservoir line Chapter 51 Heater and Air
(clogged) Conditioner-A/C Pipe, Replacement

1. Temperature control switch Chapter 51 Heater and Air
(damaged) Conditioner-A/C Pipe, Replacement
04
Other
2. Cooling and heating air doors Chapter 51 Heater and Air
(damaged) Conditioner-A/C Pipe, Replacement

4. Refrigeration System Noise Heavy
Symptom Suspected area Refer to
1. Belt (too loose) -

2. Compressor bracket (damaged) -
3. Compressor (damaged) Chapter 51 Heater and Air
Conditioner-A/C Compressor,
Replacement
External noise of system 4. Refrigeration oil (insufficient or -
starvation)
5. Electromagnetic clutch (slip) Chapter 51 Heater and Air
Conditioner-A/C Compressor,
Replacement
6. Blower (bearing damaged or fan Chapter 51 Heater and Air
contact with other components) Conditioner-Blower, Replacement
1. Refrigerant (excessive or Chapter 51 Heater and Air
insufficient) Conditioner-Refrigerant, On-Vehicle
Inspection
2. Water vapor in system causing Chapter 51 Heater and Air
Internal noise of system expansion valve noise (slip) Conditioner-Refrigerant, On-Vehicle
Inspection
3. Too high pressure at high pressure Chapter 51 Heater and Air
side causing compressor shock Conditioner-Refrigerant, On-Vehicle
Inspection

Page 227