Instructions / Assembly
26
GAS VALVE LED STATUS/PROBLEM PROBABLE CAUSE SOLUTION
Six-Four Flashes, three
second pause
System in Lockout/Flame
sense out of sequence
Gas Control (Thermostat's) valve
stuck open
Replace Gas Control (Thermostat)
Seven Flashes, three
second pause
System in Lockout/Pres-
ence of Flammable Va-
pors detected
• Gasoline or other ammable
vapor(s) were detected
• Faulty Flammable Vapor Sensor
• Faulty Gas Control (Thermostat)
• Ensure that no ammable vapor(s) are
present
• Reset the Gas Control (Thermostat)
using "ON/OFF" switch located on the
front of the control
• Replace Flammable Vapor Sensor
• Replace Gas Control (Thermostat)
Eight-One Flash, three
second pause
System in Lockout/Flam-
mable Vapor Sensor fault
detected
• Flammable vapor sensor values
out of range
• Improper Flammable Vapor Sen-
sor wiring and/or connection(s)
• Faulty Flammable Vapor Sensor
• Inspect the Flammable Vapor Sensor
wiring and connection(s)
• Replace Flammable Vapor Sensor
• Replace Gas Control (Thermostat)
Eight-Two Flashes,
three second pause
System in Lockout/En-
ergy cutoff device fault
detected
• Thermal well fault in Gas Control
(Thermostat)
• Inspect the wiring connection(s) to the
thermal well
• Replace the thermal well
Eight-Three Flashes,
three second pause
System in Lockout/Fault
in the electronics circuit
detected
• Thermal well fault in Gas Control
(Thermostat)
• Faulty Gas Control (Thermostat)
• Replace thermal well
• Replace Gas Control (Thermostat)
Eight-Four Flashes,
three second pause
System in Lockout/Fault
with the Gas Control
(Thermostat)
• Gas Control (Thermostat) needs to
be reset
• Gas Control (Thermostat) has been
damaged
• Cycle the power to the Gas Control
(Thermostat)
• Replace the Gas Control (Thermostat)
Gas Valve LED Codes cont.
CAUTION: Make certain power to water heater is “OFF” before removing protective cover FOR ANY REASON.
CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous
operation. VERIFY PROPER OPERATION AFTER SERVICING.
CAUTION: For your safety DO NOT attempt repair of gas piping, remote control, burners, vent connectors or other safety
devices. Refer repairs to qualified service personnel.