Lacey Act Declaration Form

mrcool.com
11
The following events may occur during normal operation, and may not indicate a
malfunction.
Symptom
Cause
Page 47
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.
Once the set temperature has been reached, at this point the unit turns off the
compressor. The unit will continue operating when the temperature fluctuates
again.
The unit changes
from COOL/HEAT
mode to FAN mode.
The indoor unit
emits white mist.
In humid regions, a large temperature difference between the room’s air and the
conditioned air can cause a white mist to occur.
Indoor and outdoor
units emit a white
mist.
When the unit restarts in HEAT mode after defrosting, a white mist may be
emitted due to moisture generated from the defrosting process.
The indoor unit
makes noises.
Indoor unit and
outdoor unit make
noises.
The outdoor unit
makes noises.
Dust is emitted from
the indoor or
outdoor unit.
The unit emits a bad
odor.
Outdoor unit fan
does not operate.
Operation is erratic,
unpredictable, or
unit is unresponsive.
The sound of rushing air may occur when the louver resets it’s position.
A squeaking sound may occur after running the unit in HEAT mode due to the
expansion and contraction of the unit’s plastic parts.
A low hissing sound during operation: This is normal and is caused by refrigerant
gas flowing through both indoor and outdoor units.
A 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 changing
direction or stopping.
Squeaking sound: Normal expansion and contraction of the plastic and metal
parts caused by temperature changes during operation can cause squeaking
noises.
The unit will make different noises based on which mode it is currently operating
in.
The unit may accumulate dust during extended periods of not being used, which
will be emitted when the unit is turned on. This can be mitigated by covering the
unit during any long periods of inactivity.
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.
During operation, the fan speed is controlled to optimize product operation.
Interference from cell phone towers and remote boosters may cause the unit to
malfunction.
If this is the case, try the following:
• Disconnect the power, then reconnect.
• Press ON/OFF button on remote control to restart operation.
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 3 minutes of being turned off.
NOTE: If problem persists, contact a local dealer or your nearest customer service center. Provide them with a
detailed description of the unit malfunction as well as the model number of your unit.
Troubleshooting