MAHLE RTI RHS900 - Manual (Page 40)

- 11.1 -
Trouble shooting
C:\RHS Computer Files\Instructions\RHS\GB\642-40\0012B-01.doc 1997.09.11
RHS 900
Test process
Problem Fault
Remedy
Pressure gauge shows no
pressure 1. and 2. Valve not opened
2. No refrigerant in A/C unit 1. Open high and low-pressure valves on service
couplings
2. Repair A/C unit.
Pressure gauge shows
the same reading all the
time 1. A/C unit defective
2. A/C unit not cut in 1. Empty A/C unit and repair
2. Cut in A/C unit
Recovery process:
Problem Fault
Remedy
Recovery process does
not start - green recovery
lamp does not light up 1. RHS 900 not cut in
2. Valves not opened
3. No refrigerant in A/C unit
4. System pressure is 16 bar
5. Internal cylinder full
6. Internal component fault 1. Cut in RHS 900
2. Open high and low-pressure valves on
service couplings
3. Repair A/C unit
4. Contact RHS 900 supplier
5. Empty cylinder
6. Contact RHS 900 supplier
Recovery process does
not stop 1. Oil drain valve not closed
2. A/C unit leakage
3. Internal component fault 1. Close valve
2. Contact RHS 900 supplier
3. Contact RHS 900 supplier
Recovery process runs
only for a short period 1. Valves on service couplings not opened
2. System pressure is 16 bar
3. Internal cylinder full
4. Internal component fault 1. Open valves
2. Contact RHS 900 supplier
3. Empty cylinder
4. Contact RHS 900 supplier