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12
Troubleshooting
SYMPTOMS
PROBABLE CAUSE
REMEDY
Power indicator light off
Power switch off
Turn switch on
Blower fuse
Replace
Power indicator light on
Fan belt broken
Replace
Low line voltage
Check and correct cause
Overload open
Check and correct
Overload indication light on
Fan belt broken
Replace
Low line voltage
Check and correct cause
Overload open
Check and correct
Compressor will not run
Overload open
Check and correct cause
Pump motor off
Start pump motor
Thermostat settings too hibht
Set thermostat properly
Low line voltage
Check and correct
Safety devices open
Check cause and reset
Insufficient evaporator air
Loose fan open
Adjust belt tension
Air filter clogged
Clean or replace
Pressure switches trip out frequently
Improper condenser water flow or temp.
Check and adjust water flow or temp.
Dirty condenser tubes or coil
Clean condenser
Improper entering air temp.
Check and adjust
Low refrigerant charge
Add refrigerant
Ratting or squealing fan section
Bearing broken
Replace
Fan rubbing housing
Fasten fan wheel to shaft
Foreign matter in fan housing
Remove foreign matter
Loose or worn belt
Adjust tension or replace
Noisy compressor
Improper compressor mounting
Adjust or loosen mounting bolts
Summary of Contents for 50BL Series
Page 1: ... Ÿà Õ µ µ Èß ËÕߪ Õ å Single Package Cooling Units 50BY BL 50BY BL 50BY BL ...
Page 2: ......
Page 13: ... Ÿà Õ µ µ Èß ËÕߪ Õ å 13 Technical Specification ...
Page 14: ... Ÿà Õ µ µ Èß ËÕߪ Õ å 14 Unit Dimensions 50BY008 010 50BY015 020 ...
Page 15: ... Ÿà Õ µ µ Èß ËÕߪ Õ å 15 Unit Dimensions 50BY025 030 50BY040 ...
Page 17: ... Ÿà Õ µ µ Èß ËÕߪ Õ å 17 Electrical Wiring Diagrams ...
Page 18: ... Ÿà Õ µ µ Èß ËÕߪ Õ å 18 Electrical Wiring Diagrams ...
Page 19: ... Ÿà Õ µ µ Èß ËÕߪ Õ å 19 Electrical Wiring Diagrams ...
Page 20: ... Ÿà Õ µ µ Èß ËÕߪ Õ å 20 Electrical Wiring Diagrams ...
Page 21: ... Ÿà Õ µ µ Èß ËÕߪ Õ å 21 Electrical Wiring Diagrams ...
Page 22: ... Ÿà Õ µ µ Èß ËÕߪ Õ å 22 Notes ...
Page 23: ......