28
English
Cl
eaning and Maint
enanc
e
This internal protection operates if an internal fault occurs in the air conditioner.
Type
Description
Against cold air
The internal fan will be off against cold air when the heat pump is
heating.
De-ice cycle
The internal fan will be off against cold air when the heat pump is
heating.
Anti-protection of
internal battery
The compressor will be off to protect internal battery when the air
conditioner operates in Cool mode.
Protect compressor
The air conditioner does not start operating immediately to protect
the compressor of the outdoor unit after it has been started.
NOTE
• If the heat pump is operating in Heat mode, the de-ice cycle is actuated to remove frost from an
outdoor unit that may have deposited at low temperatures.
• The internal fan is switched off automatically and restarted only after the de-ice cycle is
completed.
• When the de-ice cycle is operating,it may generate strange sound. It is normal operation for
product safety.
Internal protections via the unit control system
Maintaining the Air Conditioner
