Maintenance
41
Troubleshooting Top Oven Section
COMBI MODE
NOTE: Confirm cool down, hot air and steam modes work before continuing. By confirming previous
modes you have tested most of the components in Combi.
POSSIBLE CAUSE(S)
SUGGESTED REMEDY
SYMPTOM: Mode switch is in the Combi position but no control panel lights are on.
S
Mode selector switch (S1) terminals 21 & 22 are
open.
S
Replace switch.
SYMPTOM: Power light (H4) is on, hot air heat light (H5) is on and off, but no steam.
S
Mode selector switch (S1) terminals (15 & 16) or
(17 & 18) are open.
S
Solid state combi timer is not operating. (no
steam in the combi mode only)
S
Replace switch.
S
Verify resister assembly (with adjusting knobs) is
plugged fully in
S
Verify power in on terminals 2 & 3
S
Verify output on terminal 1
S
Verify timer knob settings (15 sec on" / 45 sec
off")
SYMPTOM: Power light (H4) is on, steam works, but no hot air.
S
Mode selector switch (S1) terminals 19 & 20 are
open.
S
Replace switch.
SYMPTOM: Not enough steam in the Combi mode.
S
Cavity temperature is too high (over 400
_
F)
S
Timing sequence needs adjusting to increase
steam.
S
Reduce temperature.
S
Left knob is time ON", right knob is time OFF"
