York YFFE18BXEXBH-RX - Troubleshooting

Troubleshooting
PROBLEM CAUSE REMEDY
Unit does not
run.
Compressor
and condenser
fan not working.
Compressor not
working but
condenser fan
working.
Compressor
ON/OFF cycle is
too short (other
than normal
thermostat cut
off).
Compressor
operates
continuously.
Excessive head
pressure.
Head pressure
too low.
Excessive
suction
pressure.
Blown Fuse.
Circuit breaker tripped.
No electrical supply.
Main power switched off.
Replace proper fuse.
Reset the breaker.
Switch ON the power supply.
Power failure.
Fuse blown or circuit breaker tripped.
Defective thermostat, contactor,
transformer or control relay.
Insufficient line voltage.
Incorrect or faulty wiring.
Thermostat setting is not correct.
Call power distributor.
Replace fuse or reset circuit breaker.
Replace component.
Call power distributor.
Rewire as per wiring diagram.
Do the correct setting.
Faulty wiring or loose connections.
Compressor circuit.
Compressor faulty.
Defective compressor run/start
capacitor, overload relay fault.
Three phase supply failure.
Check wiring and do repair or replace.
Replace compressor.
Replace fault component.
Call power distributor.
Refrigerant over charge or under
charge.
Defective compressor.
Insufficient line voltage.
Blocked condenser.
Defective run/start capacitor, overload,
start, relay, defective thermostat, fault
condenser fan motor or capacitor.
Obstructions in refrigerant system.
Reclaim refrigerant, evacuate and
recharge as on nameplate.
Replace compressor.
Call power distributor.
Determine cause and correct.
Replace fault component.
Locate obstructions and remove.
Dirty air filter.
Unit undersized for load.
Thermostat set too low.
Low refrigerant charge.
Condenser coil dirty or blocked.
Replace filter.
Decrease load or increase unit size.
Reset thermostat.
Locate leak and repair and recharge.
Clean coil or remove obstructions.
Dirty air filter.
Dirty conderser coil.
Refrigerant over charged.
Air in system.
Condenser air obstructed or air short
cycling.
Replace air filter.
Clean coil.
Reclaim excess refrigerant.
Reclaim gas, evacuate & recharge.
Determine cause and correct.
Low refrigerant charge.
Compressor valves leaking.
Restriction in liquid tube.
Check for leaks, repair and recharge.
Replace compressor.
High head load.
Compressor valves leaking.
Refrigerant over charged.
Check for cause and eliminate.
Replace compressor.
Reclaim excess refrigerant.
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