TM 10-3510-209-24
3-22. WATER HEATER UV SCANNER AND FLAME SAFEGUARD ASSEMBLY (CONT)
TEST (Cont)
CAUTION
Ensure that power is off before making continuity check. Damage to test
equipment could result.
5.
Use a multimeter and check continuity from input terminals to output terminals on motor contactor solenoid (3).
Meter should indicate open circuit at each set of terminals. Push up on motor contactor solenoid. Meter should
indicate continuity at each set of terminals.
6.
Loosen screw (4) and remove cover (5) on flame safeguard control.
WARNING
Remove
rings,
bracelets,
wristwatches, and neck chains before
working around or on the laundry
unit.
Jewelry
can
catch
on
equipment and cause injury, or may
short across an electrical circuit and
cause severe burns or electrical
shock.
WARNING
Use
extreme
caution
when
performing the following test with
power ON.
7.
Set load limit switches to ON and check for 120
V ac at test points (6) and (7) with multimeter. If
voltage is not normal, test load limit switch (step
9). If voltage is normal, go to next step.
8.
Turn off load limit switch and remove two screws
(8) and flame safeguard control circuit card (9).
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