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Basic Troubleshooting
COMPLAINT CAUSE SOLUTION
Unit does not operate.
● Unit turned off. ● Turn unit on
● Thermostat is satised. ● Raise/Lower temperature setting.
● LCDI power cord is unplugged. ● Plug into a properly grounded 3 prong recep-
tacle. See "Electrical Rating Tables" on page
13 for the proper receptacle type for your unit.
● LCDI power cord has tripped. ● Press and release RESET (listen for click;
Reset button latches and remains in) to
resume operation.
● Circuit breaker has tripped. ● Reset the circuit breaker.
● Supply circuit fuse has blown. ● Replace the fuse.
● Local power failure. ● Unit will resume normal operation once power
has been restored.
Unit trips circuit breaker or
blows fuses.
● Other appliances being used on same
circuit.
● The unit requires a single outlet circuit, not
shared with other appliances.
● An extension cord is being used. ● Do NOT use an extension cord with this or
any other air conditioner.
● Circuit breaker or time-delay fuse isn't
of the proper rating.
● Replace circuit breaker or time-delay fuse
for the proper rating. See "Electrical Rating
Tables” on page 13. If problem continues
contact a licensed electrician.
LCDI Power Cord Trips
(Reset Button Pops Out)
NOTE: A damaged power supply cord must be
replaced with a new power supply cord
obtained from the product manufacturer
and must not be repaired.
● The LCDI Power cord can trip (Reset
button POPS out) due to disturbances
on your power supply line.
● Press and release RESET (listen for click;
Reset button latches and remains in) to
resume normal operation.
● Electrical overload, overheating or
cord pinching can trip (Reset button
POPS out) the LCDI power cord.
● Once the problem has been determined and
corrected, press and release RESET (listen
for click; Reset button latches and remains in)
to resume normal operation.
Unit does not cool/heat room sufciently, or cycles
on and off too frequently
● The return/discharge air grille is
blocked.
● Ensure that the return and/or discharge air
paths are not blocked by curtains, blinds,
furniture, etc
● Windows or doors to the outside are
open.
● Ensure that all windows and door are closed.
● The temperature is not set at a cool
enough/warm enough setting.
● Adjust the temperature control to a cooler or
warmer setting as necessary.
● The lter is dirty or obstructed. ● Clean the lter, (See Recommended Mainte-
nance) or remove obstruction.
● The indoor coil or outdoor coil is dirty
or obstructed.
● Clean the coils, (See Recommended Mainte-
nance) or remove obstruction.
● The temperature of the room you are
trying to cool is extremely hot.
● Allow additional time too cool a very hot room
● The outside temperature is below
60º F.
● Do not try to operate your air conditioner in
the cooling in the cooling mode when the
outside temperature is below 60º F. The unit
will not cool properly, and the unit may be
damaged.
● The digital control is set to fan cycling
mode.
● Since the fan does not circulate the room
air continuously at this setting, the room air
does not mix as well and hot (or cold) spots
may result. Using the continuous fan setting
is recommended to obtain optimum comfort
levels.
● The air conditioner has insufcient
cooling capacity to match the heat
gain of the room.
● Check the cooling capacity of your unit to en-
sure it is properly sized for the room in which
it is installed. Room air conditioners are not
designed to cool multiple rooms.