TROUBLE 3) Display shows all figures selected, but oven does not start cooking, even though desired program and time are set and start button is tapped
.
CONDITION
Turn table motor and oven lamp do not turn on
CHECK
Check continuity of Primary interlock switch
Check continuity of
Secondary interlock and
D.O.M switch
Check D.C voltage Being supplied to RELAY(RY4) coil
RESULT
No Continuity
No Continuity
0V
Approx. 24V DC
CAUSE
malfunction of primary interlock switch
Malfunction Of secondary Interlock and D.O.M switch
Defective
touch control
Circuit
Fault contacts of RELAY (RY4) or open relay coil.
REMEDY
Adjust or Replace
Adjust or Replace
Replace
Replace
TROUBLE 4) 1) Convection heater is not heated; food will not become hot. 2) convection fan motor does not rotate.
CONDITION
1)Convection heater is not heated.
2)Convection Fan and Motor does Not rotate.
CHECK
Check continuity of Primary interlock switch
Check continuity of 
secondary interlock
switch
Check continuity of (heater or motor)
Check D.C voltage
Being supplied to
RELAY (RY3, RY6) coil
RESULT
No
Continuity
No
Continuity
No continuity
0V
Approx 24V DC
CAUSE
Malfunction Of primary Interlock switch
Malfunctioon Of secondary interlock switch
Defective motor
Defective Touch control circuit
Faulty contacts of RELAY (RY3,RY6) or open relay coil
REMEDY
Adjust or Replace
Adjust or replace
Replace
Replace
Replace
20
