Test #9: Heater - Whirlpool WTW9500E SERIES Service Manual

WARNING
Electrical Shock Hazard
Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or
electrical shock.
TEST #9: Heater Element
(on some models)
Perform the following checks to ensure the heater is
functioning properly.
IMPORTANT: Whenever the washer is tilted for service or
troubleshooting, drain water from the basket, remove any load
items in the basket, and, if equipped, remove bulk dispense
drawer.
1. Unplug washer or disconnect power.
2. Remove the heater terminal plastic cover.
3. Check the connection to the water heater element.
4. Check the resistance of the heater element (abnormal =
infinity). See Figure 2.
5. If the resistance is infinite, replace the heater element and
reinstall the heater terminal plastic cover.
6. Visually inspect that the connector on the main control
(J5) that plugs into the lower harness is installed correctly
(see wiring diagram, page 3-3).
¾ If visual check passes, go to step 7.
¾ If visual check fails, reconnect cable.
7. If connections are correct, replace the main control.
HEATER ELEMENT
L1
MAIN BOARD
BK
J12-1
L1 - HEATER RELAY
For Service Technician Use Only
BK
J5-1
HEATER ELEMENT
Figure 3 - Heater Element Strip Circuit
Heater Element (Figure 1)
A. Heater Terminals
B. Heater Compression Nut
Heater Element Test (Figure 2)
Abnormal = Infinite Resistance
H
GY
Whirlpool & Maytag Direct Drive Top Load Washer
COMPONENT TESTING
Check Resistance
MAIN BOARD
J5-2
N - HEATER RELAY
A
B
A
N
W
J12-3
3-15
n