Service manual

40 803402
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Electronic Control Troubleshooting
19. Washer Will Not Heat (Models Equipped with Heater) (3 Phase Heater
Machines Only)
No
Is there
230 Volts across
the heaters?
Yes
(1)
(2)
Yes
Replace
heater(s).
Verify water temperature
is less than selected
cycle temperature
set point.
Is there
230 volts across
terminals A1 - A2 on
the heat relay?
No
Yes
No
Correct wiring between
the heat relay coil and
the electronic control
or replace board.
Is the
pressure switch
satisfied?
The heater will not
come on until the
pressure switch
is satisfied.
No
Yes
Are there
4 "dashes" on
display indicating
the machine
is heating?
Check wiring or
replace heat relay.
FLW1703S
1
2