Troubleshooting - Whynter ARC-143MX Instruction Manual

TROUBLESHOOTING

Problem
The portable air
conditioner does not
turn on
The unit turns on but
the compressor does
not turn on (the fan
runs but the unit is not
cooling)
The air coming out of
the unit is not very
cold, or the airflow
volume is weak
Possible Causes
 Power failure / outage.
 The automatic switch, line
fuse, or breaker has been
tripped.
 The power supply voltage is
too low.
 The power cord is damaged.
 The L.C.D.I. power plug for the
unit is tripped.
 The internal water reservoir is
full.
 Possible loose connection
 Internal fuse has blown
 The room temperature is
outside of the operational
tolerances of the unit.
 The Cooling mode is not on.
 The compressor has not
turned on yet because of its
time delay.
 The set temperature is too
high.
 The internal water reservoir is
full.
 The filters are dirty or
obstructed.
 The air intake or exhaust is
obstructed.
 The unit is set in DRY or FAN
mode.
 The unit is set to low fan
speed.
17 |
 Restore the power supply.
 Flip the switch / change the fuse / turn the
breaker back on. Also note that you may have
too many appliances drawing power on one
circuit, you may need to move the other
appliances to another circuit.
 Move the unit onto another circuit with the
correct voltage.
 Contact Whynter Service Department. Only
authorized personnel should replace
damaged power cord or power plug.
 Press the Reset button on the L.C.D.I. power
plug.
 Drain water from the air conditioner.
 Contact Whynter Service Department
 This unit is designed to work in ambient
temperatures of 64°F to 95°F.
 Press the MODE button until the COOL light
is shown on the display.
 Give the compressor 3 minutes to turn on
after the Cooling mode has been selected.
 Set the air conditioner to a lower temperature.
It is recommended to set the temperature to
at least 5°F of the ambient temperature.
 Either manually drain the water by removing
the drain plug or allow the unit to exhaust the
water itself by running the fan only mode.
Then cooling will resume.
 Clean the air filters.
 Make sure there is at least 20" of clearance
from the air intake. Make the length of the
exhaust hose is as short as possible.
 Set the unit to the cooling mode.
 Set the unit to a higher fan speed.
P a g e
Solutions