Repair Instructions - Philips HD9040 Service Manual

REPAIR INSTRUCTIONS

Control Panel Inspection Instruction
Bread maker test program:
Press the "START/STOP" button during Mains connection, then release the "START/STOP" button.
The system enters into diagnosis status, the LCD shows "1229" which indicates the software version. Press any other button except
"START/STOP" to switch to other tests.
Press
LCD
Start/Stop Which Indicates
shows
Button
st
1 time 1 Motor is running
nd
2 time 2 Motor stops running
rd
3 time 3 Motor is running clockwise
th
4 time 4 Motor stops running
th
5 time 5 No functions
th
6 time 6 No functions
th
7 time 7 Heater start heating
th
8 time 8 Heater stops heating
th
9 time 9 Heater and motor operate at
the same time
th
10 time 10 Heater and motor stop
operating
th
11 time 11 Buzzer starts
th
12 time 12 Buzzer stops
th
13 time 13 Power indicater
th
14 time 14 Power indicater
th
15 time 15 All LCD contents will be on
th
16 time 16 All LCD contents will be off *
th
17 time 17F1 F1" indicates the AD value for
the temperature of the sensor
th
18 time 18 8E AD value for temperature
sensor sampling should be in
room temperature
One more It will return to software
time press interface and repeat cyclically
Possible root cause
1. Wrong connection between PCB and
motor
2. Motor error
1. Wrong connection between PCB and
motor
2. Motor error
1. Heater failure
2. PCB failure
1. Heater failure
2. PCB failure
3. Motor error
1. Buzzer inserts wrong or damage
2. PCB failure
Power indicator insert wrong or damage;
1. LCD failure
2. PCB failure
1. LCD failure
2. PCB failure
If room temp is among 35-20-10, the AD
value will be among EA~F5~F8, if the room
temp out of spec, AD value will out of range
EA~F5~F8. **
Root cause might be: PCB failure / Temp
sensor
If the temperature is between 35-20-10
degrees, the AD value should be between
73~9E~b5.
Attention, if the room temperature is not in
this scope, the AD value is out of spec. **
Root cause might be: PCB failure / Temp
sensor
HD9040
Replace
Motor assy or PCB
Motor assy or PCB
Heating element or PCB
In test 1 till 8 is OK
replace PCB
PCB
Replace control panel
Control panel assy
Control panel assy
PCB or Temp sensor
PCB or Temp sensor
2-6