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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 moredetails on this control. 15