Page 15
Troubleshooting
Gas Valve / Control Model
Diagnostic
Code #
Description
Accessory
Module
WV4460E
(intermittent pilot
gas control)
Conn
Setback Control not connected to gas valve / control or
improperly wired together.
x x
2 Relay
remains
energized
x
4
Weak pilot signal detected.
x
6
Pilot signal detected out of sequence.
x
18
Internal gas valve fault detected.
x
20
Failed to light pilot.
x
23
Pilot signal detected out of sequence (before it
should).
x
24
Pilot signal detected out of sequence (after it should).
x
29
Relay failed to energize
x
31
Upper tank sensor out of specification.
32
Lower tank sensor out of specification.
x
63
Ignition successful, but flame lost during run cycle.
Soft lockout.
x
64
Internal gas valve fault detected.
x
85
Soft Lockout due to maximum number of recycles
exceeded, last recycle was from pressure switch open
x
87
A manual reset is required due to Rollout Limit
x
89
Equipment missing or improperly wired together.
x
93
Internal gas valve fault detected.
x
95
Flammable vapor sensor fault detected, see warning
label.
x
96
Flammable vapor sensor out of specification, possible
short.
x
143
Water heater tank leak detected.
x
145
Leak sensor improperly installed or leak sensor
resistor missing.
x
The table, below, details the diagnostic codes that can be seen on the Setback
Control. Reference the Setback Control manual, p/n 238-47808-00, for more
details on this control.
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