- 28 -
Replace TCO
Note : When oven is operating , if main power off,
power oven off, in temporary temperature rise,
TCO is possible will can open.
TCO Open
Check wire short and operation
of a sensor
- Colling motor, Conveclion Motor
check
• Motor Connect wire Remove
- Motor Resistor check
(Cooling motor: 238Ω
Convection Motor: 218Ω)
- Motor Terminal Voltage check
Replace Motor
- PCB SMPS
Input Voltage check
(input check point: 5V, 230V)
Repair Faulty wiring
- PCB SMPS
output Voltage
check
(output check point: 5V, 12C)
Replace PCB
- PCB Relay contact short check
Replace PCB
YES
NO
NO
YES
YES
NO
YES
YES
NO
YES
NO
NO
4-2-10 TCO Open
BF641FST_XFA_05291A.indb 28
2011-10-31 �� 1:33:36