Sinclair MV-E14BI - Flashing LED of Indoor;Outdoor Unit and Primary Judgement

25
Service Manual
9.2 Flashing LED of Indoor/Outdoor Unit and Primary Judgement
1. Requirement of malfunction display
When severa
lmalfunctions happen at the same time, malfunction codes will be displayed circularly.
2. Malfunction display method
(1) Hardw
are malfunction: it will be displayed immediately,please refer to “Malfunction status sheet”;
(2) Operation status: it w
ill be displayed immediately, please refer to “Malfunction status sheet”;
(3)
Other malfunction: It will be displayedafter the compressor has been stopped for 200s, please refer to “Malfunction
st
atus sheet”.
(Note:
when the compressor starts up again, malfunction displaywaiting time (200s) will be cleared.)
3. Malfunction display control
Indoor unit displays malfunction co
de as shown in the sheet below. ODU communication lightwillbeoff for 1s and then blink
for 1s circularly.
4. Viewing malfunction code through remote controller
Enter viewingmalfunction code: pressing light button for 6 times within 3S to view malfunction code;
Exit viewing malfunction code: pressing light button for 6 times within 3S or after the malfunction code is displayed for 5min
.
Malfunction status sheet
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6Hnoitcnuflam erawdraHrotom UDI tuohtiw fo kcabdeeF
Indoor ambient temperature sensor is open/short circuited Hardware malfunctio
nF
1
Indoor evaporator temperature sensor is open/short circuited Hardware malfunction F2
Liquid valve temperature sensor is open/short circuitedHardware malfunction b5
Gas valve temperature sensor is open/short circuited Hardware malfunction b7
Modular temperature sensor is open/short circuited Hardware malfunction P7
Outdoor ambient temperature sensor is open/short circuited Hardware malfunction F4
Outdoor condenser inlet pipe temperature sensor is
open/short circuited (commercial)
Hardware malfunction A5
Outdoor condenser middle pipe temperature sensor is
open/short circuited
Hardware malfunction F4
Outdoor condenser outlet pipe temperature sensoris
open/short circuited (commercial)
Hardware malfunction A7
Outdoor discharge temperature sensor is open/short
circuited
Hardware malfunction F5
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Malfunction of phase current detection circuit for compressor Hardware malfunction U1
Compressor demagnetization protection
Viewing malfunction code
through remote controller within
200s; displayed directly on
nixietube after 200s
HE
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Refrigerant lacking or blockage protection of system (not
available for residential ODU)
F0
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