3-9
MMaaiinntteennaannccee
Troubleshooting
Symptom Possible Cause Remedy
Machine does not turn on • Power cord not plugged in – Plug in cord
• No power in AC outlet – Check power source
Refrigerant not being • Hand valves not open – Open hand valves
removed from vehicle
• Recovery tank full. – Change tank or Charge
refrigerant
Excessive purging of • Fitting(s) not properly – Tighten fitting(s) finger tight
non-condensables connected to master filter
• Leaky service hose or – Tighten fittings or
adaptor connection drawing replace seals in
in air finger tight fittings
Does not charge • Blue hand valve on recovery – Open blue hand valve
tank not open
• Fitting not properly – Tighten fitting finger tight
connected to recovery tank
• No refrigerant in tank – Fill tank with refrigerant
Machine does not draw • Loose hose connection – Tighten loose hose
a vacuum connections
• Oil drain valve open – Close oil drain valve
Hissing noise from oil • Oil drain valve open – Close oil drain valve
separator during recycle
and/or vacuum mode
Refrigerant losses from • Leaky hand valve(s) on tank – Make sure hand
tank on scale over time valves are either open
completely(CCW) or closed
completely (CW) and
leak test
• Leaky fitting(s) – Oil seal with refrigerant oil
and reconnect OR,
replace fitting, oil seal
and reconnect
Long recycle times • System being recycled is – Heat A/C system by
cold and has components that running engine with
hold a substantial amount of A/C OFF and keep hood
liquid refrigerant closed as much as practical
to hold in heat
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