A.O. Smith BTX-80 warranty Trouble Shooting Guide

Page 22

TROUBLE SHOOTING

Water heater may exhibit problems that are unrelated to a malfunction of the water heater itself. The following information and tables may serve to answer your question about a problem that you are having without having to call a service agent.

WARNING: DO NOT BY-PASS ANY CONTROLS TO MAKE HEATER OPERATE. OPERATE ONLY AS WIRED FROM FACTORY.

TROUBLE SHOOTING GUIDE

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.

WATER HEATER CONTROL

LED STATUS

 

PROBLEM

 

SOLUTION

 

 

 

 

An open earth ground circuit to the

1.

Check that the earth ground connection is

B C

D

E

F

ignition system.

 

properly connected.

 

 

 

 

 

2.

Check that the ground conductor on the

 

 

 

 

 

 

water heater is properly connected.

B C

D

E

F

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.

B C

D

E

F

Pressure switch remained closed longer

1.

Pressure switch wiring is incorrect.

 

 

 

 

than 5 seconds after the call for

2.

Replace pressure switch.

 

 

 

 

heat began.

 

 

B C

D

E

F

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.

B C

D

E

F

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.

B C

D

E

F

 

2.

Hot surface ignitor not positioned

 

 

correctly.

 

 

 

 

 

3.

Low voltage to the water heater.

 

 

 

 

 

4.

Electric polarity to unit is incorrect - test

 

 

 

 

 

 

and correct.

B C

D

E

F

Problem in the gas valve driver circuit.

1.

Turn power to the water heater off for

 

 

 

 

 

 

10 seconds and then back on.

 

 

 

 

 

2.

Replace gas control valve.

B C

D

E

F

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.

B C

D

E

F

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.

B C

D

E

F

Flame signal sensed out of

1.

Replace gas control valve.

 

 

 

 

proper sequence.

 

 

 

 

 

 

 

1.

Turn the power to the water heater off. Flow

B C

D

E

F

ECO activated.

 

water through the water heater until the

 

 

temperature drops below 140°F. Turn the

 

 

 

 

 

 

 

 

 

 

 

2.

power to the water heater back on.

 

 

 

 

 

Replace gas control valve.

B C

D

E

F

One of the temperature adjust

1.

Press and release each of the buttons once.

 

 

 

 

buttons stuck closed.

2.

Replace gas control valve.

B C

D

E

F

Water temperature sensor is

1.

Check that all wiring is correct and secure.

 

 

 

 

either open or short circuited.

2.

Replace gas control valve.

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Contents Model BTX-80 Commercial GAS Water Heater ROUGH-IN-DIMENSIONS Rough-In-DimensionsTypical Installation Replacement Parts and Deliming ProductsImproper Combustion External DamageChemical Vapor Corrosion Liquid Petroleum ModelsInstallation Water Potable Heating and Space Heating Confined SpaceWater Connections Closed Water SystemConnection of GAS Pipe Relief ValveVent Pipe Termination Vent Pipe AssemblyVenting Planning the Vent SystemCondensate Preparation of Blower AssemblyCondensate System Figure Vent Terminal INSTALLATION, Sidewall Installation of Vent SystemVent Termination Figure Power Vent Wiring Schematic Figure Installation of Vent SYSTEM, Sidewall Installation of Vertical Vent SystemVent Attenuation Assembly Installation Vertical VAA Installations RecommendedInch vent Horizontal VAA Installations Vent Pipe Preparation Step E OperationTo Operate the Heater Step FFor Your Safety Read Before Lighting Maintenance Temperature RegulationCondensate Inside Tank Assembly High Temperature Limit SwitchPower Venter Maintenance Main BurnerMake sure gas and electric power are connected properly Service and RepairTrouble Shooting Water Heating Ignition SequenceTroubleshooting Trouble Shooting Trouble Shooting GuideLimited Warranty

BTX-80 specifications

The A.O. Smith BTX-80 is a high-efficiency water heater designed to meet the needs of both residential and light commercial applications. Engineered with the latest technology, this unit promises reliability and superior performance, making it a standout choice for those seeking an efficient hot water solution.

One of the primary features of the BTX-80 is its energy efficiency. With a high Energy Factor (EF) rating, this water heater is designed to minimize energy consumption while delivering reliable hot water. This feature not only helps owners save on utility bills but also contributes to a more sustainable living environment.

The BTX-80 utilizes advanced condensing technology, allowing it to extract heat from exhaust gases that would typically be expelled. This process enhances its efficiency and reduces the amount of fuel needed to heat water, ensuring that users benefit from lower operating costs. The unit comes equipped with a built-in power vent system, which allows for flexible installation options and an easy, straightforward setup.

Another notable characteristic of the A.O. Smith BTX-80 is its robust build quality. Designed with durable materials, it features a glass-lined tank that helps prevent rust and corrosion, extending the lifespan of the unit. The BTX-80 is also equipped with advanced insulation, which ensures minimal heat loss and improved energy retention.

Safety features are paramount when it comes to water heating, and the BTX-80 does not disappoint. It includes a fully integrated safety system that protects against overheating and excessive pressure, ensuring peace of mind for homeowners and business operators alike.

Additionally, the BTX-80 has a user-friendly digital display and diagnostic control system, allowing users to easily monitor and adjust settings. It also features multiple installation configurations to adapt to various space requirements.

In summary, the A.O. Smith BTX-80 water heater combines high energy efficiency, advanced condensing technology, robust construction, and user-friendly features. Ideal for those seeking a reliable and sustainable hot water solution, this model is a testament to A.O. Smith's commitment to innovation and quality in the water heating industry.
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