Philips PerfectCare Elite GC9620 Service Manual page 21

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