STATUS LIGHT CODE TROUBLESHOOTING CHART

LED STATUS

PROBLEM

CORRECTIVE ACTION

0 FLASHES (LED NOT LIT)

Pilot light is not lit. Not enough

Follow the lighting instructions on the front of the

 

power (millivolts) to keep it lit.

water heater and record any diagnostic codes.

 

 

See Diagnostic Status Light Code section.

1 FLASH (EVERY 3 SECONDS)

Normal operation.

No corrective action necessary.

2 FLASHES

Insufficient power (millivolts) to the

1. Check all wiring connections. If problem

 

gas control valve/thermostat.

persists proceed to step 2.

 

 

2. Replace the thermopile. See “Replacing the

 

 

Pilot/Thermopile Assembly.”

4 FLASHES

High water temperature has

Replace the gas control valve/thermostat. See

 

activated the over heat sensor.

“Removing and Replacing the Gas Control Valve/

 

 

Thermostat.”

5 FLASHES

Water temperature sensor failure

Replace the gas control valve/thermostat. See

 

 

“Removing and Replacing the Gas Control Valve/

 

 

Thermostat.”

7 FLASHES

Gas Control Valve/Thermostat

Replace the gas control valve/thermostat. See

 

failure.

“Removing and Replacing the Gas Control Valve/

 

 

Thermostat.”

8 FLASHES

This condition only appears if the

Make sure that the gas control valve/thermostat

 

gas control/temperature knob has

knob is set to OFF. Wait one minute. Remove

 

been turned off and the thermopile

the outer door. Look through the sight glass for

 

continued to produce electric

a pilot flame. If a pilot flame is observed with the

 

power. This condition can occur if

gas control valve/thermostat knob set to the OFF

 

the thermopile does not cool down

position, the pilot valve is stuck open. Turn the

 

as quickly as expected when the

main gas supply OFF. Replace the gas control

 

unit is shut off. This condition

valve/thermostat. For instructions, see “Removing

 

can also occur if the gas control/

and Replacing the Gas Control Valve/Thermostat.”

 

temperature knob has been

If the pilot flame is not observed when the gas

 

turned off and the pilot continues

 

control valve/thermostat knob is set to the OFF

 

to operate because the pilot valve

 

position, wait 10 minutes for the thermopile to cool,

 

is stuck in the open position.

 

then attempt to relight the pilot by following the

 

 

 

 

lighting instructions on the water heater’s label.

 

 

If this condition returns, replace the gas control

 

 

valve/thermostat. See “Removing and Replacing

 

 

the Gas Control Valve/Thermostat” for instructions.

9 FLASHES

Combustion chamber temperature

1. Check all connections. If the problem persists,

 

sensor circuit is open or shorted

proceed to step 2.

 

 

2. Replace the temperature sensor.

 

 

(Temperature sensor replacement must be

 

 

performed by a qualified person.) If the

 

 

problem persists, proceed to step 3.

 

 

3. Replace the gas control valve/thermostat. For

 

 

instructions, see “Removing and Replacing

 

 

the Gas Control Valve/Thermostat.”

10 FLASHES

LDO occurrence was detected

1. Reset the system by following these steps: 1.)

 

in the combustion chamber

Turn the temperature adjustment knob to OFF.

 

(contaminants)

2.) Unplug the thermopile plug from the gas

 

 

control valve/thermostat. 3.) Wait for about

 

 

three minutes. 4.) Plug the thermopile plug

 

 

back into the gas control valve/ thermostat.

 

 

5.) Turn the temperature adjustment knob to

 

 

PILOT and restart the water heater as directed

 

 

in this manual. If the problem persists, proceed

 

 

to step 2.

 

 

2. Follow the procedure outlined in “Cleaning the

 

 

Combustion Chamber and Flame-Trap.”

 

 

If the problem persists, proceed to step 3.

 

 

3. Shut off the gas supply to the water heater

 

 

and contact Technical Assistance. The

 

 

telephone number is listed on the cover of this

 

 

manual.

30

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American Water Heater 318935-003 installation instructions Status Light Code Troubleshooting Chart
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318935-003 specifications

The American Water Heater 318935-003 stands out as a reliable option for residential and commercial hot water needs. Manufactured by American Water Heater Company, a brand known for its commitment to quality and innovation, this model integrates several advanced features and technologies to enhance efficiency, durability, and user experience.

One of the defining characteristics of the 318935-003 is its impressive efficiency rating. Designed with energy conservation in mind, it employs a highly efficient heating process that significantly reduces energy consumption. This not only helps in lowering utility bills for homeowners and businesses but also contributes to a more sustainable environment. The water heater meets or exceeds Energy Star guidelines, making it an eco-friendly choice.

The technology used in this model includes a state-of-the-art thermostat and advanced insulation material that ensures optimal heat retention. This dual approach minimizes heat loss, ensuring that hot water is readily available when needed while maintaining consistent temperatures. The adjustable thermostat allows users to customize settings to their preferences, thus improving comfort and efficiency.

Additionally, the 318935-003 features a robust design with high-quality materials that enhance its longevity. Its tank is constructed from durable steel, coated with a corrosion-resistant finish, which ensures that it withstands the test of time and minimizes maintenance needs. The unit is also equipped with a comprehensive safety system that includes a temperature and pressure relief valve, safeguarding against potential malfunctions.

The installation process of the American Water Heater 318935-003 is straightforward, making it accessible for both professionals and DIY enthusiasts. It is compatible with various plumbing systems and configurations, offering flexibility in installation locations. Maintenance is also user-friendly, with accessible components that allow for easy upkeep.

In summary, the American Water Heater 318935-003 embodies the ideal blend of efficiency, durability, and advanced technology. Its energy-efficient design, robust construction, and user-friendly features make it a top choice for anyone looking to fulfill their hot water requirements. Whether for a busy household or a commercial establishment, this water heater delivers consistent performance, ensuring a reliable supply of hot water year-round. Investing in the 318935-003 means investing in long-term satisfaction and efficiency, making it a wise addition to any space.
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