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 –

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GSW 72090 manual Viii Troubleshooting Guide, Problem Possible Causes Correction
Page 21 Page 23

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.

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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.
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