Routine Maintenance; Cleaning Of Filter; Maintenance Before The Seasonal Use; Maintenance After The Seasonal Use - Lennox VRF VECC007C432P Installation Manual

6 Routine Maintenance

Warning:
① Do turn off the unit and cut off the main power supply when cleaning the air
conditioner to avoid electric shock or injury.
② Stand at solid table when cleaning the unit.
③ Do not clean the unit using hot water of over 45℃(113
losing color or deforming.
④ Do not dry the filters by fire, or it may catch fire or become deformed.
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℃(113
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
Content
Code
L0 Indoor Unit Error
L1 Indoor Fan Protection
L2 E-heater Protection
L3 Water Full Protection
Wired Controller Power
L4
Supply Error
Error
Content
Code
Indoor Units
LA
Incompatibility Error
LH Low Air Quality Warning
ODU-IDU
LC
Incompatibility Error
d1 Indoor Unit PCB Error
Ambient Temperature
d3
Sensor Error
20
Compact 4-Way Cassette Indoor Unit
F) to prevent the unit from
o
Error
Code
d9 Jumper Cap Error
Indoor Unit Network
dA
Address Error
Wired Controller PCB
dH
Error
Capacity DIP Switch
dC
Setting Error.
Outlet Air Temperature
dL
Sensor Error
o F)
Content