© 2010 Viking Preferred Service
36
Service Diagnostics and Procedures
Relay boards
The unit has an upper and lower relay board that controls functions of the respective oven cavity.
Components can be diagnosed via the relay board. With the relay board accessed
(see Relay board Access
procedure, page 49), the following can be measured:
Component
Oven Board Test Point
Readings
Bake Element
(P9) Blue – line break Yellow
28.9
ї
Inner Broil Element
(P6) Violet – line break Yellow
23.7
ї
Outer Broil Element
(P6) Gray – line break Yellow
46.1
ї
Convection Element
(P7) White/Red – line break Yellow
34.4
ї
High Limit
(P10) White – (P10) White
0
ї
Closed, Infinite
ї
open (High limit is NC
and opens on temperature rise 275˚F [135˚C])
Cooling Fan Motor
(P 5) White – N @ terminal block
20.1
ї
Convection Motor – Hi Speed
(P3) Orange/Black – (P3) Blue/Black
38.3
ї
Convection Motor – Low Speed
(P3)Orange/White – (P3) Blue/Black
44.1
ї
Oven Lights
(P2)Yellow/Black – N @ terminal block
17.0
ї
Lower RTD
(PL3) Gray – (PL3) Violet
1089
ї
@ room temp
Upper RTD
(PU3) Gray – (PU3) Violet
1089
ї
@ room temp
Door Latch Motor
(P22) Black/White – N @ terminal block
2.4 K
1
Lower Door Switch
(PL2) Gray – (PL2) Violet/White
Infinite
1
door open, 0
1
door closed
Upper Door Switch
(PU2) Gray – (PU2) Violet/White
Infinite
ї
door open, 0
ї
door closed
Upper Door Lock Switch – S1
(PU2) Blue – (PU2) Brown
0
ї
Door unlatched, Infinite
ї
door latched
Upper Door Lock Switch – S2
(PU2) Orange – (PU2) Brown
Infinite
ї
door unlocked, 0
ї
door locked
Lower Door Lock Switch – S1
(PL2) Blue – (PL2) Brown
0
ї
Door unlatched, Infinite
ї
door latched
Lower Door Lock Switch – S2
(PL2) Orange – (PL2) Brown
Infinite
ї
door unlocked, 0
ї
door locked
Lower Hall Effect Sensor
(PL4) Red – (PL4) Black
Refer to page 46 for Hall Effect Sensor Testing
Upper Hall Effect Sensor
(PU4) Red – (PU4) Black
Refer to page 46 for Hall Effect Sensor Testing
Lower Hall Effect Sensor
(PL4) White – (PL4) Black
Refer to page 46 for Hall Effect Sensor Testing
Upper Hall Effect Sensor
(PU4) White – (PU4) Black
Refer to page 46 for Hall Effect Sensor Testing
Relay board LED’s
D7 – Door Lock Motor
D19 – Outer Bake
D8 – Oven Light
D20 – Inner Broil
D9 – Cooling Fan Speed
D21 – Outer Broil
D10 – Convection Speed Hi
D22 – Convection Element
D11 – Convection Speed Lo
D23 – Cooling Fan Speed
D12 – K8 Relay – Cooling Fan Power
D25 – Line Break