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Troubleshooting
LED Status
Accessory Module
S
tatus
Probable Cause
Green LED on continuously. Power on (no fault). n/a
Red
One flash and three
second pause.
Leak alarm fault.
Inlet Shut-off valve
open.
Water heater tank leak.
Red
Two flashes and three
second pause.
Leak alarm fault.
Inlet Shut-off valve
closed.
Water heater tank leak.
Amber
Four flashes and three
second pause.
Leak sensor
malfunction.
1. Leak Sensor resistor
removed.
2. Leak Sensor improperly
connected to Accessory
Module.
Amber
Five flashes and three
second pause.
Gas control
missing / not
connected.
1. Wrong gas control wire
harness was used.
2. Accessory Module was
not connected to gas
valve.
Red
LED strobe (quick
flashes).
Hardware error.
Internal electronics failure,
replace Accessory Module.
T
he table, below, details the diagnostic codes that can be seen on the Accessory
Module. Reference the Accessory Module manual, p/n 238-47878-00, for more
details on this control.
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