Section IX - Troubleshooting
Probable Causes:
Corrective Action:
Quincy Compressor-QSI
®
111
Failure to Start:
Power not turned “ON”
Blown control circuit fuse
Safety circuit shutdown resulting from high
discharge air temperature
Thermal overload relays tripping
Low voltage
Faulty start switch
Power failure
Faulty control relay
Loose wire connections
Faulty High Air Temperature Switch
Faulty transformer
Temperature” section of this troubleshooting
guide. Restart the compressor.
Correct the cause of the motor overloaded
condition, reset the overload relay and press
the reset button.
Check power supply and transformer fuses.
Contact a qualified service technician for
repairs.
Check all wiring terminals for contact and
tightness.
Replace relay.
Lower full load pressure setting at control
panel.
Check voltage and amperages while operating
at full load pressure.
Tighten mounting screws on thermal over
-
load.
Check motor nameplate and compare to over
-
load relay setting.
Check all connections for tightness.
Check motor starter wiring before removing
motor. Remove motor and have tested at mo
-
tor manufacturer repair center.
Summary of Contents for QSI Series
Page 2: ......
Page 7: ...Section I General Quincy Compressor QSI 5 MODEL IDENTIFICATION...
Page 62: ...Section IV Operating Procedures 60 Quincy Compressor QSI 1 Week Timer 2 Remaining Running Time...
Page 79: ...Section IV Operating Procedures Quincy Compressor QSI 77...
