A.O. Smith GDVT instruction manual Troubleshooting Guidelines, Problem Possible Causes Correction

Page 27

TROUBLESHOOTING GUIDELINES

PROBLEM

 

POSSIBLE CAUSE(S)

 

CORRECTION

 

1.

Pilot not lit

1.

Light pilot

 

2.

Thermostat set too low

2.

Turn temp. dial to desired temperature

 

3.

No gas

3.

Check with gas utility company

 

4.

Dirt in the gas lines

4.

Notify utility-install trap in gas line

BURNER WILL NOT IGNITE

5.

Pilot line clogged

5.

Clean, locate source and correct

 

6.

Main burner line clogged

6.

Clean, locate source and correct

 

7.

Defective thermocouple

7.

Replace thermocouple

 

8.

Defective gas control/thermostat

8.

Replace gas control/thermostat

 

9.

Heater installed in a confined area

9.

Provide fresh air ventilation

SMELLY WATER

1.

Sulfur in the water

1.

Replace the anode with a special anode

 

1.

Insufficient secondary air

1.

Provide ventilation to water heater

 

2.

Low gas pressure

2.

Check with gas utility company

BURNER FLAME YELLOW-

3.

Flue clogged

3.

Clean, locate source and correct

LAZY

4.

Main burner line clogged

4.

Clean, locate source and correct

 

5.

Heater installed in a confined area

5.

Proper fresh air ventilation

 

6.

Obstruction in main burner orifice

6.

Clean or replace orifice

 

1.

Air in gas line

1.

Bleed the air from the gas line

 

2.

No gas

2.

Check with gas utility company

 

3.

Dirt in gas lines

3.

Notify utility-install dirt trap in gas line

 

4.

Pilot line or orifice clogged

4.

Clean, locate source and correct

 

5.

Thermocouple connection loose

5.

Finger tighten: then 1/4 turn with wrench

 

6.

Defective thermocouple

6.

Replace thermocouple

 

7.

Cold drafts

7.

Locate source and correct

 

8.

Gas control/thermostat ECO switch open

8.

Replace gas control/thermostat

PILOT WILL NOT LIGHT OR

9.

Door-mount temperature cut-off (TCO)

9.

Call a qualified service technician

REMAIN LIT

 

switch activated.

 

 

 

10. Defective igniter or electrode

10. Replace igniter or pilot assembly

 

11. Flammable vapors incident, Flame GuardTM

11. Replace water heater, eliminate flammable

 

 

function activated

 

vapors source. Call a qualified service tech-

 

 

 

 

nician

 

12. Low gas pressure

12. Check with gas utility company

 

13. Improper installation of the quick connects

13. Reset the TCO - switch. Check if the quick

 

 

in the TCO-switch, loose connection or inter-

 

connects are firmly inserted on TCO switch

 

 

rupted gas control leads.

 

contacts.

 

1.

Thermostat set too high

1.

Set temperature dial to lower setting

 

2.

Sediment or lime in tank

2.

Drain/Flush-Provide water treatment if need-

 

 

 

 

ed

 

3.

Water heater too small for job

3.

Install adequate size heater

 

4.

Wrong piping connections

4.

Correct piping-dip tube must be in cold inlet

HIGH OPERATION COSTS

5.

Leaking faucets

5.

Repair faucets

 

6.

Gas leaks

6.

Check with utility-repair at once

 

7.

Wasted hot water

7.

Advise customer

 

8.

Long runs of exposed piping

8.

Insulate piping

 

9.

Hot water piping in exposed wall

9.

Insulate piping

 

10. Leaks or cracks in dip tube

10. Check dip tube. Replace if faulty

 

1.

Pilot line or orifice clogged

1.

Clean, locate source and correct

PILOT FLAME TOO SMALL

2.

Low gas pressure

2.

Check with gas utility company

 

3.

Defective pilot

3.

Replace pilot

 

1.

Thermostat set too low

1.

Turn temperature dial to desired setting

 

2.

Sediment or lime in tank

2.

Drain/flush-provide water treatment if need-

 

 

 

 

ed

 

3.

Water heater too small

3.

Install adequate size heater

INSUFFICIENT HOT WATER

4.

Wrong piping connections

4.

Correct piping-dip tube must be in cold inlet

5.

Leaking faucets

5.

Repair faucets

 

 

6.

Wasted hot water

6.

Advise customer

 

7.

Long runs of exposed piping

7.

Insulate piping

 

8.

Hot water piping in outside wall

8.

Insulate piping

 

9.

Low gas pressure

9.

Check with gas utility company

27

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Page 26 Page 28
Contents Residential GAS Water Heaters Important Definitions Safe INSTALLATION, USE and ServiceGeneral Safety Introduction Table of ContentsKeep Clear of ALL Obstructions GET to Know Your Water Heater Replacement Parts Typical InstallationHotter Water can Scald Mixing Valve UsageFacts to Consider about the Location Locating the NEW Water HeaterInsulation Blankets Ventilation for Appliances Located in Confined SpacesVent Termination General Installing the NEW Water HeaterRequired Ability Inspect ShipmentValve and Pipe Insulation if Supplied TEMPERATURE-PRESSURE Relief ValveWater Potable Heating and Space Heating Closed Water SystemGAS Piping GAS Piping with Flexible Connector High Altitude Installations Sediment Traps Filling the Water HeaterVenting Vent Terminal Clearances Combustion AIR and VentilationVent Connections Locating Clearance Hole for VentHigh Rise Vent Arrangement Uncompressing the Corrugated Tubing Vent AssemblySecuring Vent Termination Assembly to the Exterior Wall Standard Vent ArrangementMinimum Offset Vent ArrangementFigure D TOP KnobTemperature Regulation Temperature RegulationOperational Conditions For Your InformationExternal Damage Start UP ConditionsAIR in HOT Water Faucets Maintenance Venting System InspectionPilot and Main Burner Cathodic Protection Anode Temperature & Pressure Relief ValveAnode ROD Maintenance DrainingDrain Valve Washer Replacement Leakage Checkpoints ServiceProblem Possible Causes Correction Troubleshooting GuidelinesThermostat Fails to Slow HOT Water RecovERY Drip from Relief ValvePage Conditions and Exceptions Series Tank PartsXCV, XCVL, XCVH, XVR XCVT, XcvxLimitation on Implied Warranties Service and Labor ResponsibilityClaim Procedure Installation InformationTennessee Waltz Parkway Ashland CITY, TN

GDV, GDVT specifications

A.O. Smith is a well-known name in the water heating industry, and its GDVT and GDV series of water heaters exemplify the company's commitment to quality, efficiency, and innovation. These models are designed to provide reliable hot water solutions for both residential and commercial needs, seamlessly integrating advanced technology and user-friendly features.

One of the main features of the GDVT and GDV series is their high energy efficiency ratings. These water heaters utilize advanced insulation and energy-saving technologies, allowing them to achieve impressive efficiency levels. The GDVT series, for instance, can achieve an Energy Factor (EF) rating of up to 0.96, making it an environmentally friendly choice that can significantly reduce energy bills. This high level of efficiency is a result of thoughtful engineering, including a highly insulated tank that minimizes heat loss.

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The GDV models feature a robust digital display that provides real-time information about the water heater's operation. Users can easily monitor the unit’s performance and make adjustments as needed. Additionally, these models come equipped with advanced safety features, including a built-in safety shut-off system and over-temperature protection, ensuring safe and reliable operation.

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In summary, the A.O. Smith GDVT and GDV series water heaters are an excellent choice for those seeking a balance of efficiency, compact design, advanced technology, and enhanced safety. With their impressive energy ratings, user-friendly features, and cutting-edge technologies, these units are tailored to meet the demands of modern residential and commercial water heating solutions, ensuring a consistent supply of hot water while minimizing environmental impact.
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