Maintenance
43
Troubleshooting Top Oven Section
SEQUENCE OF OPERATION - HOT AIR
NOTE: Electricity flows through these components
in the order listed.
1. Terminal block L1, L2, L3 (440V/3ph)
2. Primary coil of transformer (T1) (step down
440V to 220V)
3. Secondary coil of transformer (T1), 220V
4. Control circuit breaker (CB1)
5. Plug connector P3 terminal 9
6. Jack connector J3 terminal 9
7. Jack connector J9 terminal 21
8. Cavity high limit (F3) terminal 1 to 2
9. Jack connector J9 terminal 2
10. Mode switch (S1) terminal 9 to 10
11. Power ON light (H4)
12. Electrical compartment cooling fan (CF)
13. Jack connector J9 terminal 5
14. Door switch (S2)
15. Jack connector J9 terminal 13
16. Meat probe relay (R5) terminal 6 to 1
17. Timer (S4) terminals 4 to 6 or Timer (S4) termiĆ
nal 4 to 5, if timer is timed out
18. Buzzer (T1)
19. Jack connector J9 terminal 11
20. Power junction: to follow, motor operation.
Jump to step 30 to continue control circuit opĆ
eration
21. Plug connector P3 terminal 1
22. Motor contactor (K8) coil terminal A1 to A2
23. Auxiliary contact (K6ĆAUX) on Redundant conĆ
tactor (K6)
24. Terminal block L1, L2, L3 (440V/3ph)
25. Redundant contactor (K6) terminals T1, T2, T3
26. Motor contactor (K8) terminals L1, L2, L3
27. Motor overload protector (OL6) terminals T1,
T2, T3
28. Terminal block (TB2Ć1, 2, & 3)
29. Convection motor
30. Mode switch (S1) terminal 11 to 12
31. Hot air thermostat (P5) terminal C to L1
32. Hot air thermostat (P5) terminal COM to NO
33. Hot air light (H5)
34. Jack connector 9 terminal 10
35. Motor Centrifugal switch (CS1)
36. Jack connector J3 terminal 7
37. Plug connector P3 terminal 7
38. Hot air contactor (K5) terminal A1 to A2
39. Auxiliary contact (K6ĆAUX) on Redundant conĆ
tactor (K6)
40. Terminal block L1, L2, L3 (440V/3ph)
41. Redundant contactor (K6) terminals T1, T2, T3
42. Hot air contactor (K5) terminals L1, L2, & L3
43. Hot air overload protector (OL4) T1, T2, & T3)
44. Terminal block (TB1Ć1 thru 6)
45. Hot air elements
