TROUBLESHOOTING GUIDELINES

WATER HEATER CONTROL

TROUBLE SHOOTING

Please check guidelines below. For your safety, water heater service should be performed only by a qualified service technician.

Read the GENERAL SAFETY INFORMATION section first.

INTELLI-VENT TROUBLESHOOTING CHART - RESIDENTIAL CONTROL

#

LED STATUS

PROBLEM

SOLUTION

6

A

B

C

Ignition/flame failure.

1. Gas supply is turned off - pressure too low. Ensure

 

 

 

The water heater has reached the

supply and manifold gas pressures are within

 

 

 

 

requirements in the installation manual. Manifold gas

 

 

 

 

maximum number of retries and is

pressure is non-adjustable if pressure is off by more

 

 

 

 

currently locked out for one hour.

than 0.3” W.C. (75 Pa) replace the Intelli-Vent™ control.

 

 

 

 

Cycle the power to the water heater

2. Low supply voltage - should be 115 -125 VAC.

 

 

 

 

off and on to reset.

3. Ensure flame sensor is making good contact with the

 

 

 

 

Service Note:

 

 

 

 

burner flame, ensure flame is steady see #8 below.

 

 

 

 

The resistance (ohms) of a hot surface

4. Ensure the flame sensor is clean - use ultra fine steel

 

 

 

 

ignitor will increase over time. If the

 

 

 

 

resistance at room temperature is near

wool or Scotch-Brite™ pad to clean flame sensor.

 

 

 

 

18.8 ohms - consider replacing the ignitor

5. Ensure the hot surface ignitor is positioned to provide

 

 

 

 

as a preventative measure.

 

 

 

 

 

consistent ignition.

 

 

 

 

 

6. Check for any cracks in ignitor assembly ceramic

 

 

 

 

 

insulators - replace ignitor assembly if damaged.

 

 

 

 

 

7. Check resistance of ignitor at room temperature (77ºF)

 

 

 

 

 

(25°C) at the plug end. Replace ignitor if resistance is

 

 

 

 

 

not within 11.5 and 18.8 ohms at room temperature.

 

 

 

 

 

8. Ensure the correct size of vent pipe (2”, 3”, 4”) was

 

 

 

 

 

used per installation manual for vent length. Using larger

 

 

 

 

 

pipe than required may cause excessive air turbulance

 

 

 

 

 

in the combustion chamber.

 

 

 

 

 

 

 

A

B

C

Self diagnostic tests have found a problem

1. Turn the power off for 10-20 seconds then on again to

7

 

 

 

with the gas valve driver circuit, internal

clear these error codes.

 

 

 

 

microprocessor, or other internal circuits.

2. If any of these error codes persist or cannot be cleared-

 

 

 

 

 

 

A

B

C

 

replace the Intelli-Vent™ control.

 

 

 

8

 

 

 

 

 

 

A

B

C

 

 

9

 

 

 

 

 

 

 

 

 

 

 

 

A

B

C

Flame signal has been sensed out of

1. Turn the power off for 10-20 seconds and then on again

10

 

 

 

proper sequence.

again to clear this error code.

 

 

 

 

 

2. Replace the Intelli-Vent™ control if this error code persists.

 

 

 

 

 

 

 

A

B

C

Water temperature in the tank has

1. Turn the power off for 10-20 seconds then on again

11

 

 

 

exceeded 195°F (91°C) and has

to clear this error code.

 

 

 

 

activated the ECO.

2. Replace the Intelli-Vent™ if the error code persists.

 

 

 

 

 

 

 

 

 

 

 

 

A

B

C

The self diagnostic check detected one

1. Press and release temperature adjust buttons. If the

12

or both of the temperature adjust buttons

above action does not clear the error, the control will

 

 

 

 

 

 

 

are stuck.

continue to regulate water temperature at the last setting.

 

 

 

 

 

However, settings will no longer be adjustable - the

 

 

 

 

 

control should be replaced.

 

 

 

 

 

 

 

A

B

C

The self diagnostic test has detected the

1. Turn the power off for 10-20 seconds then on again

13

water temperature sensor (thermistor) is

to clear this error code.

 

 

 

 

 

 

 

either open or shorted.

2. Replace the Intelli-Vent™ control if this error code persist.

 

 

 

 

 

 

 

 

 

 

 

33

Page 32 Page 34
Page 33
Image 33
A.O. Smith ARGSS02708 instruction manual Burner flame, ensure flame is steady see #8 below
Page 32 Page 34

ARGSS02708 specifications

The A.O. Smith ARGSS02708 is a standout product in the realm of water heating solutions, designed with a focus on efficiency, durability, and user convenience. This particular model exemplifies the cutting-edge technology that A.O. Smith is known for, making it a preferred choice for both residential and commercial applications.

One of the main features of the ARGSS02708 is its high efficiency. The unit employs advanced insulation techniques, which minimize heat loss and ensure that energy is utilized effectively. With an Energy Factor that meets or exceeds industry standards, this water heater can significantly reduce energy bills, making it an environmentally friendly choice that doesn't compromise on performance.

Another notable characteristic of the A.O. Smith ARGSS02708 is its robust construction. Built with high-quality materials, this water heater is designed to withstand the wear and tear of daily use. The units are manufactured with a coating that helps resist corrosion, which not only prolongs the lifespan of the heater but also ensures that it operates safely and reliably over time.

The ARGSS02708 also incorporates smart technology that enhances user experience. It features an intelligent electronic control panel that allows for easy monitoring and adjusting of temperature settings, ensuring optimal comfort. This user-friendly interface provides real-time feedback, making it straightforward for users to manage their hot water needs efficiently.

Moreover, the model supports faster recovery rates compared to traditional water heaters. With its powerful heating elements, the ARGSS02708 can provide a steady supply of hot water at consistent temperatures, catering to households or businesses with high hot water demands.

Safety is another critical aspect that A.O. Smith prioritizes in the design of the ARGSS02708. The unit is equipped with multiple safety features, including thermal cut-off switches and pressure relief valves, which ensure safe operation under varying conditions.

In summary, the A.O. Smith ARGSS02708 emerges as an excellent option for those seeking a reliable, efficient, and user-friendly water heating solution. Its combination of advanced technology, durable construction, high efficiency, and safety features make it a commendable investment for anyone looking to enhance their water heating experience.
Top Page Image Contents