TROUBLE DIAGNOSIS
- 85 -
Problems
Symptom
Causes
Checks
Measures
Remarks
Bad defrost.
Defrost is not
Defrost lead wire is cut.
Check if defrost lead wire is cut with a
Reconnect Lead
working.
tester.
Wire.
Defective defrost driving relay.
Check the voltage of CON5 (1 and 7)
Replace relay (RY 7
Refer to load
with a tester after pressing main
and RY 14) or PCB.
driving conditions
PCB test switch twice.
check in circuit
If the voltage is normal then it is OK.
explanation.
Defective defrost sensor parts.
Check the resistance of defrost sensor
Replace defrost
Refer to sensor
with a tester.
sensor.
resistance
characteristic
table of circuit
explanation.
Defective
Buzzer
Defective connecting lead wire from
Check lead wire related to door
Repair lead wire.
buzzer
continuously
main PCB to door switch.
switch with a tester.
rings or door
Defective door switch parts.
Refer to door switch in parts repair
Replace door switch.
opening alarm
guide.
does not work.
Defective
Buzzer does
Key input wire is cut or bad connector
Check input wire with a tester.
Reconnect lead
Refer to display
display button
not ring and
terminal contact in main PCB and
wire and replace or
circuit in circuit
key does not
display PCB connecting lead wire.
directly connect bad
explanation.
sense even
contact terminal to
button is
lead wire.
pressed.
Key is continuously depressed due to
Disassemble frame display and confirm
Adjust or replace
structural interference.
visually.
interfering
structures.
Summary of Contents for LRSPC2031BS
Page 46: ...1 GR P247 GR P207 GR L247 GR L207 MICOM CIRCUIT DESCRIPTION 46 GR L247 207 GR P247 207 WORK ...
Page 47: ...2 GR C247 GR C207 GR B247 GR B207 GR B197 MICOM CIRCUIT DESCRIPTION 47 JCR1 JCR2 JCR3 JCR4 ...
Page 51: ...MICOM CIRCUIT DESCRIPTION 51 Freezer Temp Control Refrigerator Temp Control ...
Page 58: ...CIRCUIT 58 GR B247 GR B207 GR C247 GR C207 GR B197 ...
