Component Testing; Testing & Repairing Water Inlet Valves - Maytag MFR Series Service Manual

Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.
TeSTinG & RepaiRinG WaTeR inleT valveS
Depending on the model there are various
numbers of water inlet valves and they may be
dual coil or singe coil inlet valves. At the time
of this printing all inlet valves for MFR washers
are of the Elbi-Bitron® type. Part numbers for
the inlet valves are: dual valve #23001455
and single valve #23001534. A replaceable
diaphragm Kit Part #23003442. A dual valve
has 2 diaphragms.
Checking for a failed diaphragm, disconnect
power to the washer. Open the top, determine
the valve that needs to be checked or check
all of them. Remove the clamp from the outlet
side of the valve(s) and see if water is coming
through the valve. No water should be coming
through the valve with the power turned off. If
water is passing through then that diaphragm
needs to be replaced, or the entire valve
should be replaced.
If a coil has failed, it will not allow water to
pass, once energized. This can be due to an
open circuit in the valve coil or the coil is too
weak to pull the diaphragm and allow water
to pass. If the solenoid is activated, the coil
should be giving off a slight vibration from the
buzzing coil.

COMpOnenT TeSTinG

Electrical Shock Hazard
Turn off power and remove the wire
connectors from the solenoid and check
resistance across the two terminals of the
solenoid. The resistance found should be
approximately 4,600 (4.6K) Ohms. If the
reading is an open circuit (infinite Ω) or varies
from what is shown here by more than 10%,
replace the water inlet valve.
There are screens in the inlet nipples,
accessed from the back of the washer, that
may become clogged. Remove the hoses to
check these screens.
Usually an occasional cleaning of the valve
is all that is needed to maintain proper valve
operation. In areas with high chlorine content
in the water supply the rubber diaphragm
may be affected. Replacement diaphragms
are available to correct swollen or "gummy"
diaphragms. Diaphragm part number
23003442. It is often more economical
to replace the entire valve that to use
replacement parts, however. It is usually
cheaper to replace the entire valve than the
diaphragm parts, however, it is easier to repair
the valve without having to remove the valve
body.
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