Gree FHBQ-D8-K User Manual

24
Energy-Recovery Ventilation
System Service Manual
MAINTENANCE
1 TROUBLE TABLE
Error Error Code Logic
Communication error. E6
Communication between the main board and the wire remote controller is
in trouble.
Indoor temp sensor error. F0
Something is wrong with temp sensor or the temperature is overstep the
range of the temp sensor.
Humidity sensor error. L1 Humidity sensor is not connected or communication is in trouble.
Outdoor temp sensor error. F3
Something is wrong with temp sensor or the temperature is overstep the
range of the temp sensor.
$LUYDOYHDQGUHOHYDQW¿WWLQJHUURU
or wrong connection of centralized
control wiring of air valve.
L0 By-pass door and drive structure of the unit loose.
2. Fault Diagnose
$IWHUGHEXJJLQJDQGWULDOUXQWKHXQLWFDQEHQRUPDOO\XVHGE\WKHXVHU,IDQ\IDXOWRFFXUVUHPRYHLW¿UVWO\
by yourself according to the following table before you contact us.
No. Phenomenon Possible causes Solutions
1
$LUÀRZYROXPH
at air outlet/
inlet is obviously
decreased after a
period of time.
Too much dust gathers on the
DLU¿OWHU
5H¿[WKHFROOHFWLQJSODFHRIDLUYHQW
2
Noise occurs
at air vent.
Installation of air vent is loose. 5H¿[WKHFROOHFWLQJSODFHRIDLUYHQW
3
The system can
not be started
No power supply or power
cord is incorrectly connected.
Terminals of main board
transformer are loose.
Communication fault (E6).
$LUYDOYHDQGUHODWLYH¿WWLQJV
are faulted(L0).
The centralized controller of
air valve of main board is not
connected
(L0).
Repair the power supply and check power cord
according ;
Repair the power supply and check power cord
according to circuit diagram on the unit;
Re-insert and connect transformer terminals;
Check the connecting wire between displayer and main
board;
Check by-pass door and drive structure of the unit and
¿[LW
Connect CONTROPL port of main board;with live line or
pinboard of air valve.
4
There is not air from
indoor or outdoor
vent after opening the
switch.
1. No power supply or power
cord is incorrectly connected.
2. Control wire is not or
incorrectly connected.
1. Check power and power supply
2. Check the connecting line between operational box
and main unit.

Gree FHBQ-D8-K Specifications

General

Brand	Gree
Model	FHBQ-D8-K
Category	Fan
Language	English