Two-way Cassette Indoor Unit Owner's Manual
22
⑤
Clean the filter with a wet cloth dipped in neutral detergent.
⑥
Please contact after-sales service staff if there is abnormal situation.
6.1 Cleaning of Filter
(1) Remove the air filter on the air inlet for cleaning. Use a dust catcher or water to clean it. If
the filter is very dirty(e.g. greasy), you can clean it using warm water(below 45°C) that is
mixed with mild detergent. Then let it dry naturally in cool places;
(2) If the air conditioner is used in dusty place, please clean the air filter regularly (generally
once every 2 weeks).
6.2 Maintenance before the Seasonal Use
(1) Check if the air inlet and air outlet of indoor and outdoor unit are blocked.
(2) Check if the grounding wire is in good condition.
(3) Check if all the power cord and communication cable are securely connected.
(4) Check if any error code displayed after energized.
6.3 Maintenance after the Seasonal Use
(1) Set the unit in fan mode for half a day in a sunny day to dry the inner part of unit;
(2) When the unit won’t be used for a long time, please cut off power supply for energy saving;
the characters on the wired controller screen will disappear after cutting off the power
supply.
7 Table of Error Codes for Indoor Unit
Error
Code
Content
Error
Code
Content
Error
Code
Content
L0
Indoor Unit Error
LA
Indoor Units Incompatibility
Error
d9
Jumper Cap Error
L1
Indoor Fan
Protection
LH
Low Air Quanlity Warning
dA
Indoor Unit Network Address
Error
L2
E-heater Protection
LC
ODU-IDU Incompatibility
Error
dH
Wired Controller PCB Error
L3
Water Full
Protection
d1
Indoor Unit PCB Error
dC
Capacity DIP Switch Setting
Error.
L4
Wired Controller
Power Supply
Error
d3
Ambient Temperature
Sensor Error
dL
Indoor Unit CO2 Sensor
Error
L5
Freeze protection
d4
Inlet Pipe Temperature
Sensor Error
dE
Capacity DIP Switch Setting
Error.
L7
No Master Indoor
Unit Error
d6
Outlet Pipe Temperature
Sensor Error
db
Special Code: Field
Debugging Code
L8
Power Insufficiency
Protection
d7
Humidity Sensor Error
C0
Communication Error
L9
Quantity Of Group
Control Indoor
Units Setting Error
d8
Water Temperature Sensor
Error
AJ
Filter Cleaning Reminder
Copyright 2018. This translation is property of GREE PRODUCTS SL. All rights reserved. Total or partial reproduction without its express authorization is prohibited.
