Section VIII - Problem solving
Quincy Compressor
89
NOTICE!
Before carrying out any maintenance or repair, perform following steps:
• Stop the compressor and switch off the voltage.
• Open and lock the isolating switch to prevent an accidental start.
• Isolate the compressor by closing the outlet valve.
• Depressurize the system by opening the drain valve(s).
Compressor
Condition
Fault
Remedy
The compressor
does not start.
Pressure too high.
Compressor will start again
when the pressure drops to the
starting pressure.
Loose connection.
Check all electrical connections.
Safety valve blows.
Pressure too high
Check settings and correct.
Safety valve opens too soon.
Replace valve.
Compressor
capacity or pressure
below normal.
Air consumption exceeds
capacity of compressor.
Check equipment connected.
Choked air inlet filter.
Remove and check filter. Replace
if necessary.
Safety valve leaking.
Replace valve.
Compressor element out of
order.
Consult your supplier.
Compressor
module overheating
or compressor
shutdown on high
air temperature.
Insufficient compressor
cooling.
Improve ventilation of
compressor room. Clean
compressor element fins
and fan, see Cleaning the
compressor element.
Cooling fan out of order.
Check and correct.
Condensate trap
continuously
discharging air an
water
Automatic drain out of order
Have the drain checked. Replace
as necessary
Refrigerant dryer
For compressors with a built-in refrigerant dryer also:
