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Model OFG- 390
2-13. DRAIN MICROSWITCH Upon pulling out on the drain handle, the microswitch should
be activated and the unit will not heat, but when the handle is
pushed back, the unit should operate properly. The bracket on the
microswitch is slotted so it can be adjusted backward or forward.
1. Remove electrical power supplied to the unit.
To avoid electrical shock or property damage, move the
POWER switch to OFF and disconnect main circuit
breaker, or unplug cord at wall receptacle.
2. The following check should be made to determine if the
drain switch is defective.
a. Remove bracket from the unit.
b. Remove wires from the switch.
c. Check for continuity across the two outside terminals
on the drain switch. If circuit is open, the drain switch
is bad. The circuit should only be opened by pressing
on the actuator of the drain switch.
3. To replace switch, remove switch from the bracket, and install
switch in reverse order.
4. Test to see if drain valve handle actuates the switch. The gap
between the drain switch and the shaft should be no more than
1/8” (3 mm).
NOTE: Listen for click of switch while pulling drain
valve handle.
1003 2-14