Service manual

troubleshooting trees
T r o u b l e s h o o T i n g T r e e s • C o m b i t h e r m C t e x p r e s s t e C h n i C a l s e r v i C e m a n u a l • D – 24
No Oven Lamp
Is oven lamp fully intact?
Is L1 power at RBH
terminal X4/416?
Is L1 power at RBH
X4/414?
Replace lamp
No
Yes
Yes
No
Repair wiring between RBH/416
and TB 17/3
No
Yes
Ensure LED D01 is lit,
replace RBH if necessary
Repair wiring between
RBH/414 and F3/1
Is L1 power at F3 2A fuse
terminal 1?
No
Is L1 power at F3 2A fuse
terminal 2?
Replace blown F3 fuse
Is L2 power at F4 2A
fuse terminal 1?
Repair wiring between
F4/1 and TB 12
Is L1 power at oven lamp
receptacle?
Repair wiring between
F3/2 and oven lamp
Is L2 power at F4 2A fuse
terminal 2?
No
Yes
Yes
No
No
Yes
Yes
Replace blown fuse
No
Yes
Is L2 power at oven lamp
receptacle?
Repair wiring between
F2/2 and oven lamp
No
Yes
Replace receptacle and/or
oven lamp