Troubleshooting - MasterCool R134a Instruction Manual

EVACUATION OF SYSTEM WITH VACUUM PUMP AND LEAK TESTING
A. Verify that there is no refrigerant in the A/C system.
B. Attach blue and red adapters to A/C system.
C. Connect yellow hose to vacuum pump, turn on pump.
D. Open manifold low side (blue) valve.
E. Open manifold high side (red) valve.
*After system has been evacuated to a gauge reading of 29 IN-Hg (inches of
vacuum), run vacuum pump for 20 minutes.
F. Close both high and low side manifold valves.
G. Allow system to sit and check gauges to verify vacuum remains.
R134a DIGITAL MANIFOLD PARTS LIST
A. Complete Stem Assembly w/Knob (2 pcs)
B. Piston Seal Assembly w/O-Rings (2 pcs)
C. Piston Seal O-Rings
D. Stem O-Ring
E. Stem, Nut and Stem O-Ring
F. Knob only, Low Side (Blue)
G. Knob only, High Side (Red)
H. Manual Low Side Coupler - complete
I. Manual High Side Coupler - complete
J. Low Side O-Ring
K. High Side O-Ring
L. Gasket for Hose Assembly
M. O-Ring for Male Fitting
N. Gasket for 1/4" FL
O. Shut-Off Valve O-Ring (1/2" ACME)
P. Shut-Off Valve O-Ring (1/4" FL-F)
Q. Optional USB and CD for Software Upgrade
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TROUBLESHOOTING:

Low Battery Indicator:
+ -
A special icon will appear in the lower right hand corner of the LCD
when the battery must be replaced.
No Display:
Check the battery and polarity.
WARRANTY
This product warrants against defects in material and workmanship for a period
of one year. This warranty does not cover failure due to abuse, improper usage,
or progressive wear and tear.
Warranty becomes valid to the original user, effective on the purchase date.
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