Section VIII - Problem solving
90
Quincy Compressor
Condition
Fault
Remedy
Dew point too
high
Air inlet temperature too high
Check and correct; see section
Reference conditions and
limitations
Fuses blown
Check fuses and remedy the
cause.
Shortage of refrigerant
Have circuit repaired or
recharged.
Refrigerant compressor does not
run
See below
Evaporator pressure is too high
See below
Condenser pressure is too high
See below
Condenser
pressure too high
or too low
Fan control switch out of order
Have switch replaced
Condenser fan motor out of
order
Have fan motor inspected
Ambient temperature too high
Improve ventilation of
compressor room, see section
Installation proposal
Condenser externally clogged
Clean condenser
Motor of
refrigerant
compressor stops
or does not start
The internal thermal protection
of the motor has tripped
Compressor will restart when
the motor windings have cooled
down.
Electric power supply to
refrigerant compressor
interrupted
Check and correct as necessary
Evaporator
pressure is too
high or too low
Condenser pressure too high or
too low
See above
Shortage of refrigerant
Have circuit repaired or
recharged
Hot gas bypass valve incorrectly
set or out of order
Have the valve adjusted or
replaced
Condensate trap
continuously
discharging air an
water
Automatic drain out of order
Have the drain checked. Replace
as necessary
Electronic
condensate drain
inoperative
Drain system clogged
Clean the filter of the automatic
drain by opening the manual
drain valve. Check functioning
of the drain by pushing the test
button.
