Perfect Aire 1PAMSH36-MZO4-16 User Manual - Manual (Page 19)

Maintenance
If you plan to idle the unit for a long time, perform the following:
Use a dry cloth to wipe off the dust accumulated on rear air intake grill, in order to avoid the dust
blowing out from the indoor unit.
Check that the air filter is installed.
Check if the air outlet or inlet is blocked after the air conditioner has not been used for a long time.
1. Clean the indoor unit and air filter.
2. Select “FAN” only mode, let the indoor fan run for a few hours to dry the inside of the unit.
3. Disconnect the power supply and remove battery from the remote control.
4. Check components of the outdoor unit periodically. Contact a local authorized dealer or a customer service center
if the unit requires servicing.
Note: Before cleaning the air conditioner, be sure to switch the unit off and disconnect the power
supply.
When the air conditioner is to be used again:
OPERATION TIPS
The following events may occur during normal operation.
1. Protection of the air conditioner.
Compressor protection
The compressor can't restart for 3 minutes after it stops.
Anti-cold air (Cooling and heating models only)
The unit is designed not to blow cold air in “HEAT” mode, when the indoor heat exchanger is in
one of the following three situations and the set temperature has not been reached.
A) When heating has just started.
B) Defrosting is occurring.
C) Low temperature heating is occurring.
The indoor and/or outdoor fan stop running when defrosting (Cooling and heating models only).
Defrosting (Cooling and heating models only)
Frost may be generated on the outdoor unit during heat cycle when outdoor temperature is low
and humidity is high resulting in lower heating efficiency of the air conditioner.
During this condition the air conditioner will stop heating function and start defrosting automatically.
The time to defrost may vary from 4 to 10 minutes according to the outdoor temperature and
the amount of frost buildup on the outdoor unit.
2. A white mist coming out from the indoor unit
3. Low noise of the air conditioner
A low hissing sound may be heard when the compressor is running or has just stopped running.
This sound is the sound of the refrigerant flowing or coming to a stop.
A low "squeak" sound may be heard when the compressor is running or has just stopped running.
This is caused by heat expansion and cold contraction of the plastic parts in the unit when the temper-
ature is changing.
A noise may be heard due to louver restoring to its original position when power is first turned on.
Operation Tips
18
A white mist may be generated due to a large temperature difference between air inlet and air outlet in
“COOL” mode in an indoor environment that has a high relative humidity.
A white mist may be generated due to moisture generated from defrosting process when the air
conditioner restarts in “HEAT” mode operation after defrosting.
Reconnect power supply and reinstall batteries in remote control.