Planer Integra 750Plus, Instructions For Use Manual

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35
Troubleshooting
Remedy : close door and turn handle fully clockwise.
·
If no manual cooling or heating - faulty door interlock switch.
Remedy : refer to Service Engineer.
No manual cooling after pressing STOP (RUN lamp off), but
solenoid valve clicks.
·
No liquid-nitrogen supply due to low level, low pressure, supply valve off or blocked or
leaking delivery hose.
Remedy :
1. Check LN2 container contents and pressure, then add more liquid nitrogen or
repressurise as necessary.
2. Check supply valve is turned on.
3. Check supply hose for leaks or blockages and replace or rectify as necessary.
4.2 LNP4 liquid nitrogen pump
Pump will not pressurise and lamp on pump PSU switch does
not light.
·
Pump power supply not plugged in.
Remedy : plug into mains wall socket.
·
Pump not plugged into power supply.
Remedy : plug pump into power supply.
·
Neck ring fitted incorrectly and failing to operate microswitch.
Remedy : check/refit.
·
Neck microswitch is faulty.
Remedy : refer to Service Engineer.
·
Switch is faulty.
Remedy : refer to Service Engineer.
·
Heater element open circuit.
Remedy: refer to Service Engineer.
·
Internal pressure switch is faulty.
Remedy : refer to Service Engineer.
Pump will not pressurise, but lamp on pump PSU switch lights.
·
Toggle valve open.
Remedy : close valve.
·
Heater fault.
Remedy : refer to Service Engineer.