MAHLE RTI RHS700 - Manual (Page 32)

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Appendixes
C:\RHS Computer Files\Instructions\RHS\GB\645-40\0009A-01.doc 1997.03.26
RHS 700
Test 5:
High pressure Approx. 19 - 20 bar
Low pressure Approx. 2.5 bar
Fault/problem Symptom Possible cause Remedy
Unacceptable cooling Ice or moisture on
hoses on high and low-
pressure sides of A/C
unit Expansion valve
defective or sensor
placed incorrectly
Expansion valve opens
too much Check position of
expansion valve
sensor.
Replace expansion
valve.
Test 6:
High pressure Approx. 7 - 10 bar
Low pressure Approx. 4 - 6 bar
Fault/problem Symptom Possible cause Remedy
A/C unit does not cool Pressure on low-pres-
sure side too high or
pressure on high-pres-
sure side too low
Internal compressor
leakage Repair or replace com-
pressor