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Troubleshooting Tips
Problem
Unit does not operate.
Unit Trips Circuit Breaker or
Blows Fuses.
LCDI Power Cord Trips
(Reset Button Pops Out).
Unit Does Not Cool/ Heat Room
Sufficiently, or Cycles On And Off Too
Frequently.
40
TROUBLESHOOTING
Possible Cause
The power button is off or the set point
temperature is satisfied.
The LCDI power cord is unplugged.
The LCDI power cord has tripped (Reset
button has popped out).
The circuit breaker has tripped or the
supply circuit fuse has blown.
There has been a local power failure.
Other appliances are being used on the
same circuit. (115 Volt only)
An extension cord is being used.
The circuit breaker or time-delay fuse is
not of the proper rating.
The LCDI power cord can trip (Reset
button pops out) due to disturbances on
your power supply line.
Electrical overload, overheating, or cord
pinching can trip (Reset button pops out)
the LCDI power cord.
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 return/ discharge air grille is blocked.
•
Windows or doors to the outside are open.
•
The temperature is not set at a cool
enough/ warm enough setting.
•
The filter is dirty or obstructed.
•
The indoor coil or outdoor coil is dirty or
obstructed.
•
There is excessive heat or moisture (cook-
ing, showers, etc.) in the room.
•
The temperature of the room you are trying
to cool is extremely hot.
Figure 716 (Troubleshooting Tips)
Possible Solution
Push the power button on and raise or lower
temperature setting (as appropriate) to call for
operation.
Plug into a properly grounded 3 prong receptacle.
(See Electrical Rating Tables, Figure 206) for the
proper receptacle type for your unit.
Press and release RESET (Listen for click. Reset
button latches and remains in.) Check that the
green LED light is on to resume operation.
Reset the circuit breaker, or replace the fuse as
applicable. If the problem continues, contact a
licensed electrician.
The unit will resume normal operation once power
has been restored.
The unit requires a dedicated outlet circuit, not
shared with other appliances.
Do NOT use an extension cord with this or any
other air conditioner.
Replace with a circuit breaker or time-delay fuse
of the proper rating. (See Electrical Rating Tables,
Figure 206) for the proper circuit breaker/ fuse rat-
ing for your unit. If the problem continues, contact
a licensed electrician.
Press and release RESET (Listen for click. Reset
button latches and remains in.) Check that the
green LED light is on to resume normal operation.
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.
•
Ensure that the return and/ or discharge air paths are not
blocked by curtains, blinds, furniture, etc.
•
Ensure that all windows and doors are closed.
•
Adjust the Temperature control to a cooler or warmer
setting as necessary.
•
Clean the filter, (see Routine Maintenance), or remove
obstruction.
•
Clean the coils, (see Routine Maintenance), or remove
obstruction.
•
Be sure to use exhaust vent fans while cooking or
bathing and, if possible, try not to use heat producing
appliances during the hottest part of the day.
•
Allow additional time for the air conditioner to cool off a
very hot room.
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Table of Contents
Troubleshooting
