A.O. Smith GDV-75, GDVT-50 Slow HOT Water Recov, Ery, Drip from Relief Valve, Thermostat Fails to

Page 27

PROBLEM

 

POSSIBLE CAUSE(S)

 

CORRECTION

 

1.

Insufficient secondary air

1.

Provide ventilation to water heater. Check

 

 

 

 

flue way, flue baffle and burner

 

2.

Flue clogged

2.

Clean flue, locate source and correct

SLOW HOT WATER RECOV-

3.

Low gas pressure

3.

Check with gas utility company

4.

Improper calibration

4.

Replace gas control/thermostat

ERY

5.

Gas control/thermostat set too low

5.

Turn temperature dial to desired setting

 

 

6.

Water heater too small

6.

Install adequate size heater

 

7.

Wrong piping connections

7.

Correct piping-dip tube must be in cold inlet

 

8.

Wasted hot water

8.

Advise customer

 

1.

Excessive water pressure

1.

Use a pressure reducing valve and relief

 

 

 

 

valve

DRIP FROM RELIEF VALVE

2.

Heater stacking

2.

Lower the thermostat setting

 

3.

Closed water system

3.

See “Closed System/Thermal Expansion”

 

4.

Temperature setting too high

4.

Decrease the temperature setting

THERMOSTAT FAILS TO

1.

Defective gas control/thermostat

1.

Replace gas control/thermostat

SHUT OFF

2.

Improper calibration

2.

Replace gas control/thermostat

 

1.

Insufficient secondary air

1.

Provide ventilation to water heater. Check

COMBUSTION ODORS

 

 

 

flue way, flue baffle, burner

2.

Flue clogged

2.

Clean, locate source and correct

 

 

3.

Heater installed in a confined area

3.

Provide fresh air ventilation

 

1.

Insufficient secondary air

1.

Provide ventilation to water heater. Check

 

 

 

 

flue way, flue baffle, burner

SMOKING AND CARBON

2.

Low gas pressure

2.

Check with gas utility company

3.

Flue clogged

3.

Clean, locate source and correct

FORMATION (SOOTING)

4.

Defective gas control/thermostat

4.

Replace gas control/thermostat

 

 

5.

Heater installed in a confined area

5.

Provide fresh air ventilation

 

6.

Burner flame yellow-lazy

6.

See “Burner Flame Yellow-Lazy”

CONDENSATION

1.

Temperature setting too low

1.

Increase the temperature setting

2.

Water heater too small

2.

Install adequate size heater

 

 

1.

Orifice too large

1.

Replace with correct orifice

BURNER FLAME FLOATS

2.

High gas pressure

2.

Check with gas utility company

3.

Flue clogged

3.

Clean flue and burner-locate source & cor-

AND LIFTS OFF PORTS

 

 

 

rect

 

 

 

 

 

4.

Cold drafts

4.

Locate source and correct

BURNER FLAME TOO HIGH

1.

Orifice too large

1.

Replace with correct orifice

 

1.

Defective gas control/thermostat

1.

Replace gas control/thermostat

FLAME BURNS AT ORIFICE

2.

Low gas pressure

2.

Check with gas utility company

 

3

Orifice not properly installed

3

Reinstall the orifice

27

Image 27
Contents Residential GAS Water Heaters Important Definitions Safe INSTALLATION, USE and ServiceGeneral Safety Introduction Table of ContentsGET 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 VentilationHigh Rise Vent Arrangement DV Termination Safety CoverVent Connections Locating Clearance Hole for VentUncompressing the Corrugated Tubing Vent AssemblySecuring Vent Termination Assembly to the Exterior Wall Standard Vent ArrangementOffset Vent Arrangement Figure a Temperature 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

186589-004, GDVT-50, GDV-75, GDV-40, GDV-50 specifications

A.O. Smith is a recognized name in the water heating industry, known for its reliable and efficient water heaters. Among its notable products are the GDV-50, GDV-40, GDV-75, GDVT-50, and 186589-004 models. These water heaters offer enhanced performance, energy efficiency, and modern technologies suited for residential and commercial applications.

The GDV series includes the GDV-50, GDV-40, and GDV-75 models, which feature a robust design typically made from high-quality materials to ensure longevity. These units come equipped with advanced insulation, which minimizes heat loss and increases efficiency, making them excellent choices for households with varying hot water needs.

The GDV-50 model boasts a tank capacity of 50 gallons, making it suitable for medium to large households. It features a powerful heating element that heats water quickly, providing ample hot water for daily use. Meanwhile, the GDV-40 is designed for smaller households with a 40-gallon capacity. This model strikes a balance between size and efficiency, catering to lighter hot water demands while maintaining excellent performance.

For larger households, the GDV-75 provides a 75-gallon capacity, ensuring that even the most demanding hot water applications can be met with ease. This model is particularly ideal for families that require hot water in large quantities or at peak times.

The GDVT-50 is a versatile model that features advanced technology, such as an integrated digital display that allows users to monitor and adjust settings easily. This offers greater control over temperature settings and energy usage, making it not only convenient but also more energy-efficient.

The A.O. Smith 186589-004 is an accessory designed for specific model enhancements that improve overall performance and safety. It may include additional safety features, such as high-temperature limit switches and automatic shut-off mechanisms that provide peace of mind for users.

All these models are equipped with A.O. Smith’s innovative technologies, including advanced thermostat controls and durable components designed to withstand frequent use. They typically come with generous warranties, underscoring the manufacturer's commitment to quality and customer satisfaction.

In summary, A.O. Smith water heaters, particularly the GDV-50, GDV-40, GDV-75, GDVT-50, and 186589-004, are built for efficiency, reliability, and performance. With various capacities and the latest technologies, they cater to the diverse needs of homeowners and businesses, ensuring that hot water is always available when needed.