Thermo-Switch

1. Switch multimeter tool No. US 1119 or equivalent, to resistance range, measure resistance between terminals of thermo-switch. If necessary, cool down switch with refrigerant spray.
2. Resistance specifications are as follows:
a. Switch part No. 035 91 369 D should measure infinite ohms at 77°F and 0.5 ohms maximum at 59°F.
b. Switch part No. 027 919 369 B should measure infinite ohms at 117°F and 0.5 ohms maximum at 59°F.
c. Switch part No. 035 919 369 B should measure infinite ohms at 104°F and 0.5 ohms maximum at 86°F.