26
Before You Call For Service…
Problem
Possible Causes
What To Do
Not enough or
Water usage may have
Wait for the water heater to recover after an
no hot water
exceeded the capacity
abnormal demand.
of the water heater.
Low gas pressure.
Check gas supply pressure and manifold pressure.
The pilot burner will not light.
Check the pilot burner. If necessary, refer to the
instructions in the “Lighting The Water Heater”
section of this manual.
The gas control (thermostat)
See the “Water Temperature Setting” of The Water
may be set too low.
Heater section of this manual.
Leaking or open hot
Make sure all faucets are closed.
water faucets.
LED Status
Possible Causes
What To Do
Slow Flash
Normal Operation
No problem.
Fast Flash
Normal Operation
Wait until gas control generates a self-reset.
Call for heat.
Solid Red LED
Lockout condition.
Replace gas control.
Internal failure detected.
2 Flashes
Lockout condition.
Third failed ignition attempt. Unplug to reset control.
Ignition failure.
Contact local qualified service agent. Make sure manual
gas shut-off valve is open. If pressure is too high the
valve will not operate. Refer to “Installing the water
heater”
Clean any scale buildup from burner and pilot assembly
The spark ignitor assembly could be damaged or broken.
If so, replace assembly.
Bleed air from gas line.
3 Flashes
Lockout condition.
Contact local qualified service agent.
Switch fails to open.
Chec for blockage in the vent system.
Replace pressure switch.
4 Flashes
Lockout condition.
Contact local qualified service agent. Inspect vent pipe
Switch fails to close.
and dilution air inlet for blockage. (Refer to “Routine
Preventative Maintenance”)
●
Make certain proper ventilation air us supplied. (Refer to
“Combustion and Ventilation Air”)
5 Flashes
Lockout condition.
●
Verify electrical supply outlet polarity.
Neutral polarity failure.
6 Flashes
Lockout condition.
●
Replace valve.
ECO failure
CAUTION: For your safety DO NOT attempt repair of gas piping, gas control (thermostat), burners, vent connectors or
other safety devices. Refer repairs to qualified service personnel.
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 error can cause improper and dangerous
operation. VERIFY PROPER OPERATION AFTER SERVICING.
Gas Valve Error Code Table
