(TROUBLE 3) Display shows all figures set, but oven does not start cooking while desired program times are set and START pad is touched.
CONDITION | CHECK | RESULT |
1. Setting time | Check continuity | No continuity. |
does not count | of secondary |
|
down when | switch (with |
|
touching START | door closed). | Continuity. |
pad. |
| |
|
| |
| Check the con- | Continuity |
| nection between | |
|
| |
| CN1 connector |
|
| and PCB | No continuity |
| assembly. | |
|
|
CAUSE |
|
| REMEDY |
|
|
|
|
|
|
|
|
Defective |
|
| Replace |
secondary switch. |
|
| secondary switch. |
|
|
|
|
Defective Power |
|
| Replace Power |
PCB assembly. |
|
| PCB assembly. |
|
|
|
|
|
|
|
|
Loose connection. |
|
| Connect them |
|
| tightly. | |
|
|
| |
|
|
|
|
2.Fan motor or 
Check fan motor. 
oven lamp do
not turn on. |
| Check oven lamp. |
|
Abnormal
Abnormal
Defective fan motor.
Defective oven lamp. 
Replace fan motor.
Replace oven lamp.
Normal
(TROUBLE 4) Oven seems to be operating but little heat is produced in oven load.
CONDITION
Output is low
CHECK
Check the power source voltage.
RESULT
Lower than 90% of rating voltage.
Normal
CAUSE
Decrease in power source voltage with load.
Defective
Magnetron.
REMEDY
Suggest customer contact local electric power utility co. or qualified electrician.
Replace
Magnetron.
NOTE : Simple test of power
