WATER HEATER CONTROL

TROUBLESHOOTING GUIDELINES

TROUBLE SHOOTING

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

Read the GENERALSAFETY INFORMATION section first.

LED STATUS

PROBLEM

 

SOLUTION

A

B C

An open earth ground circuit to the

1. Check that the earth ground connection is

ignition system.

 

properly connected.

 

 

 

2.

Check that the ground conductor on the

 

 

 

 

water heater is properly connected.

A

B C

Wiring error or a high resistance to

1.

Check for proper connection of line

earth ground.

 

neutral and hot wires.

 

 

 

 

 

 

2.

Check that the water heater is securely

 

 

 

 

connected to earth ground.

A

B C

Pressure switch remained closed longer

1.

Pressure switch wiring is incorrect.

 

 

than 5 seconds after the call for

2.

Replace pressure switch.

 

 

heat began.

 

 

A

B C

Pressure switch remained open longer

1.

Pressure switch wiring is incorrect.

than 5 seconds after the combustion

2.

Pressure switch tubing not connected

 

 

 

 

blower was energized.

 

correctly.

 

 

 

3.

Air intake or exhaust obstructed.

A

B C

Error in the hot surface ignitor circuit.

1.

Check that all wiring is correct and secure.

 

 

 

 

 

2.

Replace hot surface ignitor.

 

 

System in lockout.

1.

Gas supply is off or too low to operate.

A

B C

 

2.

Hot surface ignitor not positioned

 

 

correctly.

 

 

 

 

 

 

 

3.

Low voltage to the water heater.

 

 

 

4.

Electric polarity to unit is incorrect - test

 

 

 

 

and correct.

A

B C

Problem in the gas valve driver circuit.

1.

Turn power to the water heater off for

 

 

 

 

10 seconds and the back on.

 

 

 

2.

Replace gas control valve.

A

B C

Problem with the internal circuit.

1.

Turn power to the water heater off for

 

 

 

 

10 seconds and then back on.

 

 

 

2.

Replace gas control valve.

A

B C

Problem with the internal circuit.

1.

Turn power to the water heater off for

 

 

 

 

10 seconds and then back on.

 

 

 

2.

Replace gas control valve.

A

B C

Flame signal sensed out of

1.

Replace gas control valve.

 

 

 

 

proper sequence.

 

 

A

B C

 

 

 

 

 

ECO activated.

1.

Replace gas control valve.

A

B C

One of the temperature adjust

1.

Press and release each of the buttons

 

 

buttons stuck closed.

 

once.

 

 

 

2.

Replace gas control valve.

A

B C

Water temperature sensor is

1.

Check that all wiring is correct and secure.

 

 

 

 

either open or short circuited.

2.

Replace gas control valve.

A

B C

Unit shuts down and in lockout.

1.

Clean and reinstall the air intake screen.

 

 

 

2.

Clean and reinstall the lint screen on the

 

 

 

 

Blower assembly.

A

B C

Unit shuts down.

1.

Check for correct wiring to FV sensor.

 

 

 

2.

Check for open circuits to FV sensor.

 

 

 

3.

Replace FV sensor.

A

B C

Unit shuts down and in lockout.

1.

FV sensor detected presence of flammable vapors.

 

 

 

2.

Contact a service agency to determine cause.

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A.O. Smith 185363-001 instruction manual Troubleshooting Guidelines, Trouble Shooting
Page 26 Page 28

185363-001 specifications

A.O. Smith is renowned for producing high-quality water heating solutions, and the model 185363-001 stands as a testament to the company’s commitment to innovation and efficiency. This water heater is designed to provide reliable hot water for residential and commercial applications, ensuring that users enjoy consistent performance throughout its lifespan.

One of the standout features of the A.O. Smith 185363-001 is its impressive energy efficiency. The unit is built with advanced insulation that minimizes heat loss, thus allowing it to achieve a higher Energy Factor (EF) rating. This efficiency not only contributes to reduced energy bills but also aligns with modern environmental standards, making it a responsible choice for eco-conscious consumers.

The 185363-001 model utilizes a robust tank design that ensures durability and optimal performance. Made from high-grade materials, the tank is resistant to corrosion and wear, extending the heater's lifecycle. Additionally, the unit's glass-lined interior offers added protection against rust and mineral buildup, promoting effective heat transfer and consistent hot water supply.

In terms of capacity, the A.O. Smith 185363-001 is designed to meet the demands of various households. It comes in multiple sizes, catering to different needs, whether for a smaller apartment or a larger family home. This versatility makes it a popular option for installers and homeowners alike.

The water heater is also equipped with advanced safety features, including a temperature and pressure relief valve, which prevents potential hazards by protecting the tank from excessive heat or pressure. Furthermore, the control system includes an adjustable thermostat, allowing users to set their preferred water temperature efficiently.

Another important characteristic of the A.O. Smith 185363-001 is its user-friendly design. The unit is straightforward to operate, which simplifies maintenance and reduces downtime. For technicians, the heater features a modular design that facilitates servicing and replacement of components, ensuring quick repairs when needed.

Overall, the A.O. Smith 185363-001 embodies reliability, efficiency, and ease of use, making it a superb choice for anyone in need of a dependable water heating solution. Its combination of innovative technology and user-centric design ensures that it not only meets but exceeds the expectations of customers, solidifying A.O. Smith's reputation as a leader in the water heater market.
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