Toyotomi GAN-A180GVR Service Manual page 38

Display Method of Indoor Unit
Malfunction
Name
Indicator Display (during blinking,
ON 0.5s and OFF 0.5s)
Dual-8
No.
Code
Display
Operation
Outdoor ambient
temperature
12 sensor is F3
open/short
circuited
Outdoor
condenser
temperature
13 F4
sensor is
open/short
circuited
Outdoor
discharge
temperature
14 F5
sensor is
open/short
circuited
Limit/decrease
15 frequency due to F6
overload
Decrease
16 frequency due to F8
overcurrent
Decrease
frequency due to
17 F9
high air
discharge
Voltage for DC
18 bus-bar is too PH
high
Malfunction of
19 complete unit's U5
current detection
Overcurrent
protection of
20 phase current P5
for compressor
21 Defrosting H1
Static dedusting
22 H2
protection
Display
Outdoor Unit
Indicator has 3 kinds of
display status and they
will
circularly every 5s.
OFF
COOL Heating
D40 D41 D42 D43
Indicator Indicator Indicator
OFF 3S
and blink
3 times
OFF 3S
and blink
4 times
OFF 3S
and blink
5 times
OFF 3S
and blink
for 6
times
OFF 3S
and blink
8 times
OFF 3S
and blink
9 times
OFF 3S
and blink
11 times
OFF 3S
and blink
13 times
OFF 3S
and blink
15 times
OFF 3S
and blink
once
OFF 3S
and blink
twice
Method of
be displayed
A/C status
ON Blink
During cooling
operating, compressor stops while
indoor fan operates;
heating operation, the complete
unit will stop operation
During cooling
operation, compressor stops while
indoor fan will operate; During
heating operation, the complete
unit will stop operation.
During cooling
operation, compressor will sop
after operating for about 3 mins,
while indoor fan will operate;
During heating operation, the
complete unit will
operating for about 3 mins.
All loads operate normally, while
operation frequency
compressor is decreased
All loads operate normally, while
operation frequency
compressor is decreased
All loads operate normally, while
operation frequency
compressor is decreased
During cooling
operation, compressor will stop
while indoor fan will operate;
During heating operation, the
complete unit will stop operation.
During cooling
operation, the compressor will
stop while indoor fan will operate;
During heating operating, the
complete unit will stop operation.
During cooling
operation, compressor will stop
while indoor fan will operate;
During heating operation, the
complete unit will stop operation.
Defrosting will occur in heating
mode. Compressor will operate
while indoor fan
operation.
Possible Reasons
and drying
Outdoor temperature sensor hasn't been connected
During well or is damaged. Please check it by referring to
the resistance table for temperature sensor)
and drying
Outdoor temperature sensor hasn't been connected
well or is damaged. Please check it by referring to
the resistance table for temperature sensor)
and drying
1.Outdoor temperature
connected well or is damaged. Please check it by
referring to the resistance table for temperature
sensor)
2.The head of temperature sensor hasn't been
stop after
inserted into the copper tube
Refer to the malfunction analysis (overload, high
for
temperature resistant)
The input supply voltage is too low;
for System pressure is too high and overload
Overload or temperature is too high;
for Refrigerant is insufficient;
Malfunction of electric expansion valve (EKV)
1. Measure the voltage of position L and N on wiring
board (XT), if the voltage is higher than 265VAC,
and drying
turn on the unit after the supply voltage is increased
to the normal range.
2.If the AC input is normal, measure the voltage of
electrolytic capacitor C on control panel (AP1), if it's
normal, there's malfunction for the circuit, please
replace the control panel (AP1)
and drying
There's circuit malfunction on outdoor unit's control
panel AP1, please replace the outdoor unit's control
panel AP1.
and drying
Refer to the malfunction analysis (IPM protection,
loss of synchronism protection and overcurrent
protection of phase current for compressor.
It's the normal state
will stop
/
sensor hasn't been