Whynter ARC-143MX instruction manual Troubleshooting, Problem, Possible Causes, Solutions, P a g e

Models: ARC-143MX

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TROUBLESHOOTING

TROUBLESHOOTING

Problem

Possible Causes

Solutions

 

 

 

The portable air

Power failure / outage.

Restore the power supply.

conditioner does not

The automatic switch, line

Flip the switch / change the fuse / turn the

turn on

fuse, or breaker has been

breaker back on. Also note that you may have

 

tripped.

too many appliances drawing power on one

 

 

circuit, you may need to move the other

 

 

appliances to another circuit.

 

The power supply voltage is

Move the unit onto another circuit with the

 

too low.

correct voltage.

 

The power cord is damaged.

Contact Whynter Service Department. Only

 

 

authorized personnel should replace

 

 

damaged power cord or power plug.

 

The L.C.D.I. power plug for the

Press the Reset button on the L.C.D.I. power

 

unit is tripped.

plug.

 

The internal water reservoir is

Drain water from the air conditioner.

 

full.

 

 

Possible loose connection

Contact Whynter Service Department

 

Internal fuse has blown

 

 

 

 

The unit turns on but

The room temperature is

This unit is designed to work in ambient

the compressor does

outside of the operational

temperatures of 64°F to 95°F.

not turn on (the fan

tolerances of the unit.

 

runs but the unit is not

The Cooling mode is not on.

Press the MODE button until the COOL light

cooling)

 

is shown on the display.

 

The compressor has not

Give the compressor 3 minutes to turn on

 

turned on yet because of its

after the Cooling mode has been selected.

 

time delay.

 

 

The set temperature is too

Set the air conditioner to a lower temperature.

 

high.

It is recommended to set the temperature to

 

 

at least 5°F of the ambient temperature.

 

The internal water reservoir is

Either manually drain the water by removing

 

full.

the drain plug or allow the unit to exhaust the

 

 

water itself by running the fan only mode.

 

 

Then cooling will resume.

 

 

 

The air coming out of

The filters are dirty or

Clean the air filters.

the unit is not very

obstructed.

 

cold, or the airflow

The air intake or exhaust is

Make sure there is at least 20" of clearance

volume is weak

obstructed.

from the air intake. Make the length of the

 

 

exhaust hose is as short as possible.

 

The unit is set in DRY or FAN

Set the unit to the cooling mode.

 

mode.

 

 

The unit is set to low fan

Set the unit to a higher fan speed.

 

speed.

 

 

 

 

17 P a g e

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Whynter ARC-143MX instruction manual Troubleshooting, Problem, Possible Causes, Solutions, P a g e