Troubleshooting Procedures
Automatic Function
Display Message: REFRIGERANT INSUFF.
If the weight entered is more than the refrigerant
available in the ISV, the charge function will not start.
The display reads
REFRIGERANT INSUFF.
Refer to Manually Fill the ISV in the Maintenance
section.
Display Message: PRESSURE TOO HIGH!
Before the machine begins evacuating the A/C system
during the automatic sequence, it checks for any
pressure in the system that may damage the vacuum
pump. If pressure is detected, the machine displays
PRESSURE TOO HIGH!
CHECK CONNECTIONS
Press ESC. Recover refrigerant before proceeding.
Display Message: VACUUM TIME X:XX MIN
If a leak test was programmed, and a leak is detected,
the machine displays
VACUUM TIME X:XX MIN
LEAK TEST RESULT NEGATIVE
Press ESC to exit the automatic sequence and perform
needed repairs. Press OK to continue the automatic
sequence despite the failed leak test.
Information
To ensure an accurate leak test, it is imperative that
a thorough recovery and evacuation of the system is
performed. During the recovery process, cold spots can
develop in the A/C system. Pockets of refrigerant in
desiccant and in system oil will continue to vaporize as
the A/C system temperature equalizes toward ambient.
As this occurs, A/C system pressure increases, which
may be interpreted by the machine as a leak. This
varies somewhat with ambient temperature conditions.
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X.XX BAR