Gree TERRA09HP230V1A Installation, Service & Troubleshooting page 71

Troubleshooting 18,000/24,000 btuh Units
Indoor Unit Display
Malfunction
#
Name
Indoor
Display
High pressure
1 protection of E1
system
Anti-freezing
2 E2
protection
High discharge
temperature
3 E4
protection of
compressor
Overcurrent
4 E5
protection
Communica-
5 tion Malfunc- E6
tion
High tempera-
6 ture resistant E8
protection
Internal motor
7 (fan motor) do H6
not operate
Malfunction
8 protection of C5
jumper cap
Outdoor Unit
Method
Display Method
(repeated every 5
seconds)
Operation
o = Off
Indicator
n = Illuminated
« = Blink
OFF 3S and
o «
blink once
OFF 3S and
n o
blink twice
Off 3S and
n o
blink 4 times
Off 3S and
o n
blink 5 times
Off 3S and
o o
blink 6 times
Off 3S and
n o
blink 8 times
Off 3S and
blink 11 times
Off 3S and
blink 15 times
A/C Status
During cooling and drying op-
eration, except indoor fan op-
erates, all loads stop operation.
« «
During heating operation, the
complete unit stops
During cooling and drying
operation, compressor and
n o
outdoor fan stop while indoor
fan operates
During cooling and drying
operation, compressor and
outdoor fan stop while indoor
n «
fan operates. During heating
operation, all loads stop.
During cooling and drying
operation, compressor and
outdoor fan stop while indoor
« o
fan operates. During heating
operation, all loads stop.
During cooling operation,
compressor stops while indoor
fan motor operates. During
o «
heating operation, the com-
plete unit stops.
During cooling operation,
compressor stops while indoor
fan motor operates. During
n n
heating operation, the com-
plete unit stops.
Internal fan motor, external
fan motor, compressor and
electric heater stop operation,
guide louver stops at present
location
Wireless remote receiver and
button are effective, but can
not dispose the related com-
mand
Possible Causes
Possible reasons: 1. Refrig-
erant was superabundant;
2. Poor heat exchange
(including filth blockage
of heat exchanger and bad
radiating environment);
Ambient temperature is
too high
1. Poor air-return in indoor
unit; 2. Fan speed is abnor-
mal; 3. Evaporator is dirty
Please refer to the malfunc-
tion analysis (discharge
protection, overload).
1. Supply voltage is unsta-
ble; 2. Supply voltage is too
low and load is too high; 3.
Evaporator is dirty.
Refer to corresponding
malfunction analysis
Refer to the malfunction
analysis (overload, high
temperature resistant).
1. Bad contact of DC mo-
tor feedback terminal; 2.
Bad contact of DC motor
control end; 3. Fan motor
is stalling; 4. Motor mal-
function; 5. Malfunction
of mainboard rev detecting
circuit
1. No jumper cap insert on
mainboard; 2. Incorrect
insert of jumper cap; 3.
Jumper cap damaged; 4.
Abnormal detecting circuit
of mainboard.
71