Section 4 Service Procedures
WARNING
To reduce the risk of electrical shock, fire, explosion, serious injury or death:
•Disconnect electrical power to the
•Close the gas
•Never start the
•Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the
W461R1
28.DRAIN VALVE Refer to Figure 13.
If the
a.Turn off power to the machine.
b.Remove any panels necessary to access the drain valve and drain plumbing.
c.Check for a clog in the drain line.
d.Verify that the drain valve is opening.
(1)The drain valve is normally open (i.e., it requires voltage to close).
(2)When power is removed from the machine, the drain valve should open.
e.If the drain is not opening, check for the following:
(1)Check the motor winding for continuity, a short circuit or an abnormal drop in voltage. Replace the drain valve as needed (consult the machine’s parts manual for drain valve part numbers).
(2)Check that the shaft and rotor of the drain motor turns freely.
(3)Check that the internal drain valve is closing and does not bind. A clog within the drain valve may be preventing the drain valve from closing. Replace the drain valve as needed (consult the machine’s parts manual for drain valve part numbers).
f.Check the wire continuity from the drain valve to the plug on the computer board.
g.
Refer to Figure 14.
REMOVAL
a.Turn power off to the machine.
b.Remove the door glass (with the door gasket attached) from the door.
c.Remove the door gasket from the door glass.
Drain
Valve
CFD16S
Figure 13
DoorCFD17S
Gasket
Figure 14
REPLACEMENT
a.Install the door gasket onto the door glass.
b.Insert the door glass (with the door gasket attached) into the door.
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