Component Testing
!
WARNING
To avoid risk of electrical shock, personal injury, or death, disconnect electrical power source to unit, unless test
procedures require power to be connected. Discharge capacitor through a resistor before attempting to service.
Ensure all earthing wires are connected before certifying unit as repaired and/or operational.
©2004 Maytag Services
16023324 Rev. 0
7
Component Description
Test
Procedures
Overload / Relay
When voltage is connected and relay is
cool, current passes through relay to start
winding.
After a short time, current heats the
resistor in relay and resistance will rise
blocking current flow through relay.
Start winding remains in the circuit through
run capacitor.
Solid state relay plugs directly on
compressor start and run terminals. Relay
terminals 2 and 3 are connected within
relay. Run capacitor is connected to relay
terminal 3. L2 side of 120 VAC power is
connected to relay terminal 2.
1. Disconnect power to the refrigerator.
2. Remove relay cover and disconnect leads.
3. Check resistance across terminals 2 and 3 with an ohmmeter:
Normal = 3 to 12 ohms
Shorted = 0 ohms
Open = infinite ohms
Control board
On some models.
See “Control Board” section for
troubleshooting information.
Ice maker
Optional on some models.
See “Ice Maker” section for service
information.
Evaporator fan
motor
Evaporator fan moves air across
evaporator coil and throughout refrigerator
cabinet.
1. Disconnect power to unit.
2. Disconnect fan motor leads.
3. Check resistance from ground connection solder. Trace to motor frame must
not exceed .05 ohms.
4. Check for voltage at connector to motor with unit in refrigeration mode and
compressor operating.
Electric damper
control
Damper control balances the air delivery
between refrigerator and freezer
compartments providing temperature
control for refrigerator.
Electrical voltage activates damper control
and door closes restricting flow of air from
freezer compartment to refrigerator
compartment.
Check resistance across terminals.
If no resistance across terminals replace damper control.
