SERVICE CODES
6-13
Service Code 3
Table 3 - Troubleshooting Service Code 3 - Continued
Relay board and/or
control panel
operation.
Relay board may be
defective.
Faulty control panel.
Boiler fill solenoid may
be defective.
Water inlet valve may
be defective.
Improper drain valve
(DV1) operation.
Perform relay board power
supply check.
Replace relay board or flex cable.
Replace control panel.
Check if there is 24VAC across WV1A.
No 24V
AC present. Check wiring
continuity. If necessary, replace broken
wire or end of wire connector.
24VAC measured. Test solenoid.
Replace water inlet valve.
Check if drain valve is closed.
If open, replace drain valve, DV1.
Voltmeter
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————————
Voltmeter
Digital ohmmeter
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Page 8-3
Page 8-22
Page 8-21
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Page 8-6
Page 8-25
Page 8-27
(Revised 1/02)
Service
Reference
Location
Probable Cause
Corrective Action
Test Equipment
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