Troubleshooting - Bryant 582A Series Installation, Start-Up And Service Instructions Manual

SYMPTOM
Compressor and Power failure
condenser fan will
Fuse blown or circuit breaker tripped
not start.
Defective thermostat, contactor, transformer,
or control relay
Insufficient line voltage
Incorrect or faulty wiring
Thermostat setting too high
Compressor will not Faulty wiring or loose connections in
start but condenser compressor circuit
fan runs.
Compressor motor burned out, seized, or
internal overload open
Defective run/start capacitor, overload,
start relay
One leg of 3-phase power dead
Three-phase scroll Scroll compressor is rotating in the
compressor wrong direction
(582A048 and
583A030-060) makes
excessive noise,
and there may be
a low pressure
differential.
Compressor cycles Refrigerant overcharge or undercharge
(other than normally
satisfying
Defective compressor
thermostat).
Insufficient line voltage
Blocked condenser
Defective run/start capacitor, overload
or start relay
Defective thermostat
Faulty condenser-fan motor or capacitor
Restriction in refrigerant system
Compressor Dirty air filter
operates
Unit undersized for load
continuously.
Thermostat set too low
Low refrigerant charge
Leaking valves in compressor
Air in system
Condenser coil dirty or restricted
Excessive head Dirty air filter
pressure.
Dirty condenser coil
Refrigerant overcharged
Air in system
Condenser air restricted or air short-cycling
Head pressure too Low refrigerant charge
low.
Compressor valves leaking
Restriction in liquid tube
Excessive suction High heat load
pressure.
Compressor valves leaking
Refrigerant overcharged
Suction pressure Dirty air filter
too low.
Low refrigerant charge
Metering device or low side restricted
Insufficient evaporator airflow
Temperature too low in conditioned area
Outdoor ambient below 40 F
Field-installed filter-drier restricted

TROUBLESHOOTING

Cooling
CAUSE
—33—
REMEDY
Call power company.
Replace fuse or reset circuit breaker.
Replace component.
Determine cause and correct.
Check wiring diagram and rewire correctly.
Lower thermostat setting below room temperature.
Check wiring and repair or replace.
Determine cause. Replace compressor.
Determine cause and replace.
Replace fuse or reset circuit breaker.
Determine cause.
Correct the direction of rotation by reversing the
3-phase power leads to the unit. Shut down unit to
allow pressures to equalize.
Recover refrigerant, evacuate system, and
recharge to capacities shown on nameplate.
Replace and determine cause.
Determine cause and correct.
Determine cause and correct.
Determine cause and replace.
Replace thermostat.
Replace.
Locate restriction and remove.
Replace filter.
Decrease load or increase unit size.
Reset thermostat.
Locate leak, repair, and recharge.
Replace compressor.
Recover refrigerant, evacuate system, and recharge.
Clean coil or remove restriction.
Replace filter.
Clean coil.
Recover excess refrigerant.
Recover refrigerant, evacuate system, and recharge.
Determine cause and correct.
Check for leaks, repair and recharge.
Replace compressor.
Remove restriction.
Check for source and eliminate.
Replace compressor.
Recover excess refrigerant.
Replace filter.
Check for leaks, repair and recharge.
Remove source of restriction.
Increase air quantity. Check filter — replace if
necessary.
Reset thermostat.
Install low-ambient kit.
Replace.