MAHLE RTI RHS700 - Manual (Page 19)

- 10.1 -
Trouble shooting
C:\RHS Computer Files\Instructions\RHS\GB\645-40\0009A-01.doc 1997.03.26
RHS 700
Test process
Problem Fault
Remedy
Pressure gauge shows no
pressure 1. + 2. Valve not opened
3. No refrigerant in A/C unit 1. Open high and low-pressure valves on service
couplings
2. Open valves on service couplings
3. 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 700 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 700
2. Open high and low-pressure valves on
service couplings
3. Repair A/C unit
4. Contact RHS 700 supplier
5. Empty cylinder
6. Contact RHS 700 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 700 supplier
3. Contact RHS 700 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. Blow off non-condensable gases
3. Empty cylinder
4. Contact RHS 700 supplier