T: 0191 516 6554
54
Open and Reverse Phase Error
Prevention of phase unbalance and
prevention of reverse rotation of
constant-rate compressor
Main power wiring fault
60
PCB(lnverter)
&
Main EEPROM check sum error
EEPROM Access error and Check SUM
error
1.
EEPROM contact defect/wrong insertion
2.
Different EEPROM Version
3.
ODU Inverter
&
Main PCB assembly 1
damage
61
High temperature in Cond. Pipe
•
Overload operation (Outdoor fan
constraint, screened, blocked)
•
Unit heat exchanger contaminated
•
EEV connector displaced/ poor EEV
assembly
•
Poor Cond
.
Pipe sensor assembly/
burned
•
Check outdoor fan constraint/ screened /
flow structure
•
Check if refrigerant overcharged
•
Check the status of EEV assembly
•
Check the status of sensor assembly/
burn
62
Heat sink Temp, High error
Heatsink temperature is greater than 110
°
C
.
1. Part no. : EBR37798101 ~09
-
Check the heatsink
sensor: 10 kO / at 25
°
C(Unplugged)
-
Check the outdoor
fan is driving rightly 2. Part
no.: EBR37798112~21
-
Check the soldered condition in the
22,23 pin of 1PM, PFCM
-
Check the screw torque of 1PM, PFCM
-
Check the spreadable condition of
thermal grease on 1PM, PFCM
-
Check the outdoor fan is driving rightly
65
Problem in Heatsink Temperature sensor
Abnormal value of sensor
(Open/Short)
•
Check if there is defect of
thermistor connector
(Open/Short)
•
Check defect of outdoor PCB(lnverter)
Display
code
Title
Cause of error
Check point & Normal condition
67
Fan lock error
Fan RPM is less than 10 for 5 seconds
from
start-up
operation. Fan RPM is less
than 40 in operation except for start-up
operation
1.
.
Fan motor damage
2.
Assembly condition abnormal
3.
Jammed fan by surroundings
114
Problem in
Vapor
injection inlet temperature
sensor
•
Open (Below -48.7
°C)/
Short(Over 96.2
°C)
•
Soldered poorly
•
Internal circuit error
1.
.
Bad connection of thermistor
connector
2.
Defect of thermistor connector
(Open/Short)
3.
Defect of outdoor PCB(Outdoor)
115
Problem in
Vapor
injection outlet temperature
sensor
•
Open (Below -48.7
°C)/
Short(Over 96.2
°C)
•
Soldered poorly
•
Internal circuit error
1.
.
Bad connection of thermistor
connector
2.
Defect of thermistor connector
(Open/Short)
3.
Defect of outdoor PCB(Outdoor)
