Cooling Fan; Sensor - Viking VICU206 Service Manual

Service Diagnostics and Procedures

Cooling Fan

Cooling Fan
The cooktop uses cooling fans to help with heat
management. The fan ensures the electronics and
switches are kept cool during cooking modes as
well as pulls excess heat from the cooktop. The fan
(X57) is 12 VDC, 0.38 amp, 4.6 W, 9400 Ω.
© 2009 Viking Preferred Service
NTC Temperature Sensor
The cooktop uses a N.T.C. sensor under the main
glass top. It is used for two purposes. One is to
protect the inductors and the second is to detect
an overheat situation. In either case, once an over
temperature is detected, the unit shuts down.
Measure the resistance of the sensor and compare
to the chart below.
Test Points
˚F ˚C Rnenn
32 0 917.56
77 25 1001.7
122 50 1085.5
167 75 1168.7
212 100 1251.3
257 125 1333.3
302 150 1414.7
347 175 1495.5
392 200 1575.6
437 225 1655.1
482 250 1734
527 275 1812.3
572 300 1890
617 325 1967.1
662 350 2043.5
Ro Ru
920.88 914.23
1006.7 996.7
1092.2 1078.9
1177.1 1160.4
1261.4 1241.4
1345 1321.7
1428.1 1401.4
1510.5 1480.5
1592.3 1559
1673.5 1636.9
1754 1714.2
1834 1790.8
1913.3 1866.9
1992 1942.3
2070.1 2017.1
31