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9
SERVICE
This section provides procedures for testing and
replacing various major components used in this
dispenser should service become necessary. Refer
to Troubleshooting for assistance in determining the
cause of any problem.
Component Access
WARNING - Disconnect the dispenser from the power
source before the removal of any panel or the replace-
ment of any component.
The check valve, electronic control assembly,
overflow protection switch, solenoid valve, overflow
tube temperature sensor, triac assembly and terminal
block are located on the side of the dispenser. Access
is gained by removing the side panel. The panel is at-
tached with eight 8-32 slotted-head screws.
P878
P878
The limit thermostat, liquid level probe, tank heater,
and temperature sensor are located at the top of the
dispenser. Access is gained by removing the top lid,
attached with four 4-40 slotted-head screws.
WARNING - Inspection, testing, and repair of electri-
cal equipment should be performed only by qualified
service personnel. Disconnect the dispenser fromthe
power source when servicing, except when electrical
tests are required and the test procedure specifically
states to connect the dispenser to the power source.
Electronic Controls ...................................... 10-14
Limit Thermostat ...............................................15
Safety Overflow Switch .....................................16
Solenoid Valve ..................................................17
Tank Heater .......................................................19
Electrical Schematic ..........................................20
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