Filter
Top Products
Page 17
PROBLEM POSSIBLE CAUSE TO CORRECT
Compressor attempts
to start, or runs for
short periods only.
Cycles on overload.
Check operation of unit. Replace overload if system
operation is satisfactory.
Allow a minimum of two (2) minutes for pressures to
equalize before attempting to restart. Instruct customer
of waiting period.
Check voltage with unit operating. Check for other
appliances on the circuit. The air conditioner should be
on a separate circuit for proper voltage, and be fused
separately.
Refer to appropriate wiring diagram.
Check by substituting a known good capacitor of correct
rating.
Check for proper fan speed or blocked condenser.
Check for kinked discharge line or restricted condenser.
Check amperage.
Overload inoperative. Opens
too soon.
Compressor attempts to start
before system pressures are
equalized.
Low or fluctuating voltage.
Incorrect wiring.
Shorted or incorrect capacitor.
Restricted or low air flow through
condenser coil.
Compressor running abnormally
hot.
PROBLEM POSSIBLE CAUSE TO CORRECT
Thermostat does not
turn unit on.
Loss of charge in thermostat
bulb.
Loose or broken parts in thermo-
stat.
Incorrect wiring.
Place jumper across thermostat terminals to check if unit
operates. If unit operates, replace the thermostat.
Check as above.
Refer to appropriate wiring diagram.
PROBLEM POSSIBLE CAUSE TO CORRECT
Poorly installed unit.
Fan blade striking chassis.
Compressor vibrating.
Improperly mounted or loose
cabinet parts.
Refer to Installation Instructions for proper installation.
Reposition - adjust motor mount.
Check that compressor grommets have not deteriorated.
Check that compressor mounting parts are not missing.
PROBLEM POSSIBLE CAUSE TO CORRECT
Evaporator drain pan overflow-
ing.
Condensation forming on base
pan.
Poor installation resulting in rain
entering room.
Condensation on discharge
grilles.
Clean obstructed drain trough.
Evaporator drain pan broken or cracked. Reseal or replace.
Check installation instructions. Reseal as required.
Dirty evaporator coil - clean. Very high humidity level.
Water leaks into
room.
Noisy operation.