Troubleshooting Tips... Before you call for service
Save time and money! Review the charts on the following pages first and you may not need to call for service.
Problem
Possible Cause
Air Conditioner
An RV fuse has blown, or circuit
breaker has tripped.
does not operate
The mode setting is in the OFF
position.
The local power has failed.
Air conditioner
Too many appliances are being used
blows fuses
on the same circuit.
or trips circuit
Time-delay fuse or circuit breaker of
breakers
the wrong capacity is being used.
You are trying to restart the air
conditioner too soon after turning off
the air conditioner.
Air conditioner
The current air conditioner replaced
seems to run too
an older model.
much
The air conditioner is in a heavily
occupied room, or heat-producing
appliances are in use in the room.
Air conditioner
The air conditioner is not properly
cycles on and off
sized for your RV.
too much or does
The filter is dirty or obstructed by
not cool room in
debris.
cooling mode
There is excessive heat or moisture
(open container cooking, showers,
etc.) in the room.
The louvers or ducts are closed.
The outside temperature is below
60°F (15°C).
The temperature of the room you are
trying to cool is extremely hot.
Windows or doors to the outside are
open.
The Temperature control is not at a
cool enough setting.
Water drips from
The indoor coil may be frozen.
cabinet into your
The air conditioner's mounting gasket
house
may not be sealed against the roof.
49-5000406 Rev. 1
What To Do
Replace the fuse or reset the circuit breaker. If the problem
continues, call an electrician. See "Electrical Requirements."
Press POWER or turn the Mode control to an active setting.
Wait for power to be restored.
Replace with a time-delay fuse or circuit breaker of the
correct capacity. See "Electrical Requirements."
Wait at least 3 minutes after turning off the air conditioner
before trying to restart the air conditioner.
The use of more efficient components may cause the air
conditioner to run longer than an older model, but the total
energy consumption will be less. Newer air conditioners do
not emit the "blast" of cold air you may be accustomed to
from older air conditioners, but this is not an indication of
lesser cooling capacity or efficiency.
to use heat producing appliances during the hottest part of
the day. A higher capacity air conditioner may be required
depending on the size of the room being cooled.
Check the cooling capabilities of your RV air conditioner.
Clean the filter.
to use heat-producing appliances during the hottest part of
the day.
Make sure louvers are open.
Do not try to operate your air conditioner in the cooling mode
when the outside temperature is below 65°F (18°C).
Allow extra time for the air conditioner to cool off a very hot
room.
Close all windows and doors.
Adjust the TEMP control to a cooler setting by pressing the
minus button to reduce the temperature. Set the Fan Speed
control to the highest setting.
De-ice by running the fan only until clear.
Check mounting bolts and tighten to 45 ± 5 in-lbs if
necessary.
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