Whynter air conditioner troubleshooting

Using the table below, you will be able find out the cause of the breakdown of your air conditioner. You can fix some simple problems yourself with the help of our tips.

Whynter ARC-13 air conditioner troubleshooting

ProblemPossible CausesSolutions
The portable air conditioner does not turn onThere was a power failureRestore the power supply
The automatic switch, line fuse, or breaker has been trippedFlip the switch / change the fuse / turn the breaker back on. Also note that you may have too many appliances drawing power on one circuit, so you may need to move the other appliances to another circuit
The power supply voltage is too low The power cord is damagedMove the unit onto another circuit with the correct voltage
The LCDI plug for the unit is trippedCall for service. Only authorized personnel should replace damaged power cord or power plug
Press the Reset button on the LCDI plug
The unit turns on, but the compressor does not turn on (the fan runs but the unit is not cooling)The room temperature is outside of the operational tolerances of the unitThis unit is designed to work in ambient temperatures of 64?F to 100?F
The Cooling mode is not onPress the Function Mode (T4) button until the Cooling icon (D3) is shown on the remote control. Make sure that the reception of the signal is confirmed by a beep.
The compressor has not turned on yet because of its time delayGive the compressor 3 minutes to turn on after the Cooling mode has been selected
The set temperature is too highSet the air conditioner to a lower temperature
The internal water reservoir is fullEither manually drain the water or allow the unit to exhaust the water itself. Then cooling will resume
The air coming out of the unit is not very cold, or the airflow volume is weakThe filters are dirty or obstructed The air intake is obstructedClean the 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

Whynter MSFS-012H23017-01NE air conditioner troubleshooting

Problem Possible Causes
Unit does not turn on when pressing ON/OFF button• The unit has a 3-minute protection feature that prevents the unit from overloading. The unit cannot be restarted within three minutes of being turned off.
• Check the plug fuse.
• Timer is set.
The unit changes from COOL/HEAT mode to FAN mode• The unit may change its setting to prevent frost from forming on the unit. Once the temperature increases, the unit will start operating in the previously selected mode again.
• The set temperature has been reached, at which point the unit turns off the compressor. The unit will continue operating when the temperature fluctuates again.
The indoor unit emits white mist• In humid regions, a large temperature difference between the room’s air and the conditioned air can cause white mist.
Water drops from the indoor unit• Dripping water may generate on the surface of the indoor unit when cooling in a relatively high humidity (RH more than 80%). Adjust the horizontal louver to the maximum air outlet position and select HIGH fan speed.
Both the indoor and outdoor units emit white mist• When the unit restarts in HEAT mode after defrosting, white mist may be emitted due to moisture generated from the defrosting process.
The indoor unit makes noises• A rushing air sound may occur when the louver resets its position.
• A squeaking sound may occur after running the unit in HEAT mode due to expansion and con- traction of the unit’s plastic parts.
Both the indoor unit and outdoor unit make noises• Low hissing sound during operation: This is normal and is caused by refrigerant gas flowing through both indoor and outdoor units.
• Low hissing sound when the system starts, has just stopped running, or is defrosting: This noise is normal and is caused by the refrigerant gas stopping or changing direction.
• Squeaking sound: Normal expansion and contraction of plastic and metal parts caused by temperature changes during operation can cause squeaking noises.
The outdoor unit makes noises• The unit will make different sounds based on its current operating mode.
Dust is emitted from either the indoor or outdoor unit• The unit may accumulate dust during extended periods of non-use, which will be emitted when the unit is turned on. This can be mitigated by covering the unit during long periods of inactivity.
The unit emits a bad odor• The unit may absorb odors from the environment (such as furniture, cooking, cigarettes, etc.) which will be emitted during operations.
• The unit’s filters have become moldy and should be cleaned.
The fan of the outdoor unit does not operate• During operation, the fan speed is controlled to optimize product operation.
Operation is erratic, unpredictable, or unit is unresponsiveInterference from cell phone towers and remote boosters may cause the unit to malfunction. In this case, try the following:
• Disconnect the power, then reconnect.
• Press ON/OFF button on remote control to restart operation.
Poor cooling performanceTemperature setting may be higher than ambient room temperature
• Lower the temperature setting
The heat exchanger on the indoor or outdoor unit is dirty
• Clean the affected heat exchanger
The air filter is dirty
• Remove the filter and clean it according to instructions
The air inlet or outlet of either unit is blocked
• Turn the unit off, remove the obstruction and turn it back on
Doors and windows are open
• Make sure that all doors and windows are closed while operating the unit
Excessive heat is generated by sunlight
• Close windows and curtains during periods of high heat or bright sunshine
Too many sources of heat in the room (people, computers, electronics, etc.)
• Reduce amount of heat sources
Low refrigerant due to leak or long-term use
• Check for leaks, re-seal if necessary and top off refrigerant; contact an authorized service provider
SILENCE function is activated
• SILENCE function can lower product performance by reducing operating frequency. Turn off SILENCE function.
The unit is not workingPower failure
• Wait for the power to be restored
The power is turned off
• Turn on the power
The fuse is burned out
• Replace the fuse
Remote control batteries are dead
• Replace batteries
The unit’s 3-minute protection has been activated
• Wait three minutes after restarting the unit
Timer is activated
• Turn timer off
The unit starts and stops frequentlyThere’s too much or too little refrigerant in the system
• Check for leaks and recharge the system with refrigerant; contact an authorized service provider
Incompressible gas or moisture has entered the system
• Evacuate and recharge the system with refrigerant; contact an authorized service provider
The compressor is broken
• Replace the compressor; contact an authorized service provider
The voltage is too high or too low
• Install a manostat to regulate the voltage; contact an authorized service provider
Poor heating performanceThe outdoor temperature is extremely low
• Use auxiliary heating device
Cold air is entering through doors and windows
• Make sure that all doors and windows are closed during use
Low refrigerant due to leak or long-term use
• Check for leaks, re-seal if needed and top off refrigerant; contact an authorized service provider