GC9620 - GC9650
21-23
6.5. Troubleshooting Tips
TS tip #1
TS tip #2
TS tip #3
TS tip #4
TS tip #5
TS tip #6
TS tip #7
TS tip #8
TS tip #9
No pumping sound, fault could be on:
Pump
check by apply AC voltage directly
Power PCBA
check by driving a known good pump
Connection
check wire continuity
a)
b)
c)
2.
1.
No buzzer sound, fault should be on Power
PCBA
Other LEDs do not light up as specified, fault should be on one of
PCBAs or interconnection
4.
1. Zero-crossing detection circuit error, fault should be on
PCBA
1. LEDs do not light up as specified, fault should be on one of
PCBAs or
interconnection
1. Iron temperature sensing circuit error, fault could be on:
Thermistor
check the resistance, should be around 200+ k
Ω
)
Power PCBA
check by test another board
Connection
check wire continuity, especially hose cord
a)
b)
c)
Thermistor
check the resistance, should be around 200+ k
Ω
)
Power PCBA
check by test another board
Connection
check wire continuity
a)
b)
c)
Iron heater power does not show in the power meter, fault could be due to:
1.
Iron is too hot
cool down and try again
Iron fuse or heating element Open Circuit
check resistance between Iron Live and Neutral signal
Power PCBA
check by test another board
a)
b)
c)
1. Boiler heater power does not show in the power meter, fault could be due to:
Boiler is too hot
cool down and try again
Boiler fuse or heating element Open Circuit
check resistance between Boiler Live and Neutral signal
Power PCBA
check by test another board
a)
b)
c)
1. Boiler temperature sensing circuit error, fault could be due to:
1. E-valve does not open when steam trigger is pressed:
If iron LED still keeps blinking, trigger press is not detected, fault could be on:
-
If iron LED becomes steady on when press steam trigger, and system shows completed Self-Check mode
successfully after release the trigger
check E-valve related parts and Power PCBA
-
1. Water probe error, fault could be due to:
There is water inside boiler
pour out water and test again
Probe reaches end of life
replace probe and test again
Connection
check wire continuity
Power PCBA
check by test another board
a)
Trigger mechanism or hose cord connection
disconnect connector 9016 from Power PCBA
and measure continuity between the black wire (pin1) and iron Neutral, it should be short circuit
when trigger is pressed, and open circuit when trigger is released.
a)
b)
Power PCBA
check by test another board
b)
c)
d)
Iron LED and hose cord wiring
disconnect connector 9016 from Power PCBA and measure across
pin 3 at female side and iron Neutral to check diode characteristics
Power PCBA
check by test another board
a)
b)
Iron LED does not light up as specified, fault could be on:
3.
Repair Instruction
