GSW 72090 manual Viii Troubleshooting Guide, Problem Possible Causes Correction

Page 22

VIII) TROUBLESHOOTING GUIDE

Note: Troubleshooting must be done by qualified service personnel familiar with the start up and check out procedure.

Note: The latest version of the installation and operating instructions manual can be found at www.johnwoodwater- heaters.com

 

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-LAZY

3.

Flue clogged

3.

Clean, locate source and correct

 

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.

Replace igniter or pilot assembly

 

 

 

10.

Defective igniter or electrode

 

 

 

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

 

 

connects are firmly inserted on TCO switch

 

 

 

 

 

interrupted 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

 

 

 

 

 

 

 

 

 

 

needed

 

 

 

 

 

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.

Repair faucets

 

 

 

 

5.

Leaking faucets

 

 

6.

Check with utility-repair at once

 

 

 

 

 

 

 

 

 

 

 

 

6.

Gas leaks

 

 

7.

Advise customer

 

 

 

 

 

7.

Wasted hot water

 

 

8.

Insulate piping

 

 

 

 

 

8.

Long runs of exposed piping

 

 

9.

Insulate piping

 

 

 

 

 

9.

Hot water piping in exposed wall

 

 

10.

Check dip tube. Replace if faulty

 

 

 

 

 

10.

Leaks or cracks in dip tube

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.

Clean, locate source and correct

 

 

 

1.

Pilot line or orifice clogged

 

PILOT FLAME TOO SMALL

 

 

2.

Low gas pressure

 

 

2.

Check with gas utility company

 

 

 

 

 

3.

Defective pilot

 

 

3.

Replace pilot

 

 

 

 

 

 

 

 

 

 

 

 

– 22 –

Page 21 Page 23
Image 22
Page 21 Page 23
Contents For Your Safety What to do if YOU Smell GASPage IX Repair Parts Illustration Viii Troubleshooting GuideLimited Warranty For Installations in the United States Introduction II SafetyFor Installations in Canada User ResponsibilitiesSafety Warning Carbon Monoxide Safety Warning Flammable VapoursSafety Warning Scalding Backflow PreventionLocation Requirements Clearances and AccessibilityEarthquake Zones Gas Supply Failure to Properly Install this Heater MAYResult in a Fire Hazard Gas Pressure Gas Leak TestingGas line purging Air Requirements Confined Space Air Requirements for Canadian InstallationsLocal Codes Confined Space Air Requirements for Installations Exhaust Venting Water SupplyDo not plug valve Valve is dripping or leaking, have aLicensed plumber repair it Do not remove valveTemperature And Pressure Relief Valve Installations CheckDischarge Line IV Operating Instructions Water Temperature Regulation Temperature AdjustmentLighting Instructions Robertshaw 110R What to do if YOU Smell GASLighting Instructions Robertshaw 220R Lighting Instructions White-Rodgers 37C AvantChecking the Draft Operation Burner FlamesEmergency Shut Down Operating ConditionsDraining and Flushing VI MaintenancePeriodic Inspection Resetting and Replacing the Safety TCO Switch External Cleaning Flame-arresterTemperature and Pressure Relief Valve VII Combo Heating System RequirementsViii Troubleshooting Guide Problem Possible Causes CorrectionThermostat Fails to Shut IX Repair Parts Illustration Repair PartsLimited Warranty WHO is CoveredHOW the Original Owner can Make a Warranty Claim

72090 specifications

The GSW 72090 is a remarkable addition to the world of modern heating solutions, designed to provide efficient and effective space heating. It epitomizes advanced technology, reliability, and user-centric design, making it an ideal choice for homes and commercial spaces alike.

One of the main features of the GSW 72090 is its impressive heating capacity. Engineered to deliver optimal warmth, it can efficiently heat larger areas, ensuring that spaces remain comfortable even during the coldest months. The unit’s high-grade alloy construction enhances durability and helps maintain consistent performance over time.

A vital technology integrated into the GSW 72090 is its modulating control system. This system intelligently adjusts the temperature output based on the current heating demand, optimizing energy usage and contributing to lower utility bills. This efficiency not only benefits the consumer but also has a positive impact on the environment by reducing greenhouse gas emissions.

The GSW 72090 also boasts a sleek and modern aesthetic, making it an attractive addition to any space. Its design allows for easy installation and maintenance, ensuring that users can focus on comfort without worrying about the complexities of upkeep. The unit operates quietly, providing a peaceful environment without the disruptive noises often associated with traditional heating systems.

Incorporating safety features is another key characteristic of the GSW 72090. It includes overheat protection, which automatically turns the unit off if it detects excessive temperatures, ensuring a safe environment for occupants. Additionally, the product is constructed with materials that are resistant to corrosion and wear, enhancing longevity.

As an environmentally conscious option, the GSW 72090 is designed to comply with stringent energy efficiency regulations. Its performance not only meets but often exceeds the required standards, making it a smart choice for those looking to reduce their carbon footprint.

Overall, the GSW 72090 stands out due to its combination of advanced technologies, user-friendly features, aesthetic appeal, and commitment to safety and efficiency. Its multi-faceted capabilities make it a prime option for anyone seeking reliable and effective heating solutions in their home or business.
Top Page Image Contents