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Troubleshooting
Problem
Cause
Solution
Unit does not turn on
Power cord not plugged in
Plug in the power cord
Power switch off
Turn the power switch on
Circuit breaker error
Replace circuit breaker
No power in AC outlet
Check power source
Unit does not recover
Manifold valve closed
Open valve
Service adapters closed
Open adapters
Storage tank full
Empty Storage Tank
Vacuum calibration error
Re-calibrate vacuum
Unit does not charge
No refrigerant in tank
Fill tank with refrigerant
Tank valve closed
Open valve
Service hose couplers closed
Open couplers
Service hose constricted
Straighten hose
Leak in vehicle AC system
Find and repair leak
Scale calibration error
Re-calibrate scale
Unit cannot pull vacuum
Loose hose connection
Tighten hose connections
Leak in vehicle AC system
Find and repair leak
Oil injection valve open
Close oil injection valve
Leak in hoses
Find and repair leak
Contaminated vacuum pump
oil
Change vacuum pump oil
Weight inaccuracies
Unit moving
Do not move unit
Storage tank touching the unit
Prevent contact
Summary of Contents for EKM 1500
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