Troubleshooting - MrCool DIY E Star Series Owners & Installation Manual

Troubleshooting

The following events may occur during normal operation, and may not indicate malfunction.
Symptom
Operation is
delayed after restart
Fan speed changes
- off, very slow and
then normal
Heating operation
stops suddenly and
defrost-light blinks
Mist coming out of
the indoor unit
Low volume sounds
are emitted by the
air conditioner
Dust discharges
from the unit
Emits a peculiar
odor
Changes to fan only
while cooling or
heating mode
Operation is erratic,
unpredictable or
unresponsive
NOTE: If the problem is not resolved, please contact a qualified service professional. Be sure to inform NOTE: If the problem is not resolved, please contact a qualified service professional. Be sure to inform
them of the detailed malfunctions and unit model number. them of the detailed malfunctions and unit model number.
To prevent blowout of the fuse, the compressor will not operate while
the protection circuit is working for about 3 minutes after sudden OFF--ON
operation of the power supply.
Automatically happens in heating mode :
--prevents cold air blowing onto occupants when heating operation starts
--perform automatic defrosting operation
--perform low temperature heating operation
In HEAT mode, the indoor unit temporarily stops for maximum of 10
minutes to perform the automatic defrosting operation.
In COOL mode, a mist generated by condensation formed with sudden
cooling process may be emitted.
Mist may generate due to moisture from defrosting process when the air
conditioner restarts in HEAT mode operation after defrosting.
Hissing sound -- during operation or immediately after stopping the air
conditioner, refrigerant flowing sound may be heard.
Squeaking sound -- normal expansion and contraction of plastic and
metal parts caused by temperature change during the operation.
Rushing air -- when louver resets its position.
May occur when air conditioner is used for the first time or has not been
used for a long time.
Various smells generated from interior textile, furniture, or cigarette smoke
absorbed into the air conditioner may be emitted. If not the case, contact a
local dealer or your installation contractor.
Room temperature reaches the temperature setting of the remote control.
If not the case, contact a local dealer or your installation contractor.
Interference from cell phone towers and remote boosters may cause the
unit to malfunction.
Turn power off on unit and circuit at breaker, wait 10 seconds and power on.
Press the ON/OFF button on the remote controller to restart operation.
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Cause
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