Viking VDSC536 - Selector and Thermostat Characteristics

Troubleshooting
©2009 Viking Preferred Service 19
Selector and Thermostat Characteristics
The tables show the operating characteristics of the selector and thermostat positions. The selector and thermostat
are potentiometers (variable resistors) whose resistance varies per user selections. The selected resistance informs
the board of the user’s selections. All values are approximate.
Selector Position Resistance - Voltage
red to black
Resistance - Voltage
red to white
Resistance - Voltage
black to white
Off 10.0 k 5 VDC ∞ 5 VDC ∞ 0
Bake 10.0 k 5 VDC 443  0.42 VDC 9.56 k 4.58 VDC
Convection Bake 10.0 k 5 VDC 1.58 k 1.29 VDC 8.42 k 3.71 VDC
Tru Convection 10.0 k 5 VDC 2.72 k 1.96 VDC 7.28 k 3.04 VDC
Convection Roast 10.0 k 5 VDC 3.86 k 2.52 VDC 6.14 k 2.48 VDC
Convection Broil 10.0 k 5 VDC 5.00 k 3.00 VDC 5.00 k 2.00 VDC
Hi Broil 10.0 k 5 VDC 6.14 k 3.44 VDC 3.86 k 1.56 VDC
Med Broil 10.0 k 5 VDC 7.28 k 3.86 VDC 2.72 k 1.14 VDC
Low Broil 10.0 k 5 VDC 8.42 k 4.30 VDC 1.58 k 0.70 VDC
Self Clean 10.0 k 5 VDC 9.56 k 4.79 VDC 443  0.21 VDC
Resistance checks are made on the selector wire harness with the selector wire harness disconnected from the
board at location P21. The harness is connected to P21 for voltage checks.
Thermostat
Position
Resistance - Voltage
orange to blue
Resistance - Voltage
orange to yellow
Resistance - Voltage
blue to yellow
Off 10.0 k 5 VDC ∞ 5 VDC ∞ 0
200°F 10.0 k 5 VDC 8.75 k 4.44 VDC 1.25 k 0.56 VDC
300°F 10.0 k 5 VDC 6.88 k 3.71 VDC 3.13 k 1.29 VDC
400°F 10.0 k 5 VDC 5.00 k 3.00 VDC 5.00 k 2.00 VDC
500°F 10.0 k 5 VDC 4.03 k 2.61 VDC 5.94 k 2.39 VDC
Broil 10.0 k 5 VDC 2.19 k 1.66 VDC 7.81 k 3.34 VDC
Clean 10.0 k 5 VDC 780  0.70 VDC 9.22 k 4.30 VDC
Resistance checks are made on the thermostat wire harness with the thermostat wire harness disconnected from
the board at location P15. The harness is connected to P15 for voltage checks.