Whirlpool Gas Water Heater N30T61-303

[Patricio]

Pilot will not stay lit.  It will lite with button depressed but will not stay lit when let go.   Light does not blink.

The thermopile has 56 mV when heated.  Owner does not have an owners manual.

  Are there any other sensors that can be checked.  There is a probe that one lead of the thermopile plugs into.

 

Revised model # NU30T61-303

Suggestions?

Edited October 7, 2013 by Patricio

[Patricio]

Thermopile generated 569 mV with a heat gun,  failed to add the 9.  Heated a good furnace 750 mV with heat gun & it generated same voltage.  I am sure that thermopile is good.

My other option is to rule the gas control as failed.  From what my wife/partner  researched these control units have failed quite often on this particular model.

 

There is something else that I am unsure about.   The probe that sticks in to the heater cabinet. It has no continuity at the connections.

[RegUS_PatOff]

PILOT WILL NOT LIGHT OR REMAIN LIT
1. Non-functioning igniter  . . . . 1. Replace igniter pilot assembly
2. Thermopile connection loose . . . . 2. Seat connector firmly in socket
3. Air in gas line . . . . 3. Bleed the air from the gas line
4. Proper Lighting Sequence not followed.. . . . . . 4. Do not attempt to relight if the red light is lit
Gas Control / Temperature Knob was not held in for sufficient time. . .and the pilot flame is not visible through the view port.

Wait until the red light is no longer lit, then follow lighting instructions on the water heater.
5. Low gas pressure. . . . 5. Check with gas utility company
6. No gas . . . . . 6. Check with gas utility company
7. Dirt in gas lines. . . . 7. Notify utility-install dirt trap in gas line
8. Cold drafts. . . . 8. Locate source and correct

PILOT WILL NOT LIGHT OR REMAIN LIT (continued)
9. ECO switch open . . . . 9. Replace gas control valve/thermostat
10. Pilot line or orifice clogged . . . . 10. Clean, locate source and correct
11. Non-functioning thermopile . . . . 11. Replace thermopile
12. Air for combustion obstructed . . . . 12. See maintenance section for inspection and cleaning of flame trap
13. Flammable vapors incident, Flame Lock® function utilized . . . . 13. Replace water heater, eliminate flammable vapors source. Call 1-877-817-6750.
 

http://appliantology.org/files/file/1288-whirlpool-water-heater-n30t61-303/

Whirlpool Water Heater
N30T61-303
Installation Instructions and Use & Care Guide
319118-002.pdf

 

[Patricio]

PILOT WILL NOT LIGHT OR REMAIN LIT

1. Non-functioning igniter  . . . . 1. Replace igniter pilot assembly

2. Thermopile connection loose . . . . 2. Seat connector firmly in socket

3. Air in gas line . . . . 3. Bleed the air from the gas line

4. Proper Lighting Sequence not followed.. . . . . . 4. Do not attempt to relight if the red light is lit

Gas Control / Temperature Knob was not held in for sufficient time. . .and the pilot flame is not visible through the view port.

Wait until the red light is no longer lit, then follow lighting instructions on the water heater.

5. Low gas pressure. . . . 5. Check with gas utility company

6. No gas . . . . . 6. Check with gas utility company

7. Dirt in gas lines. . . . 7. Notify utility-install dirt trap in gas line

8. Cold drafts. . . . 8. Locate source and correct

PILOT WILL NOT LIGHT OR REMAIN LIT (continued)

9. ECO switch open . . . . 9. Replace gas control valve/thermostat

10. Pilot line or orifice clogged . . . . 10. Clean, locate source and correct

11. Non-functioning thermopile . . . . 11. Replace thermopile

12. Air for combustion obstructed . . . . 12. See maintenance section for inspection and cleaning of flame trap

13. Flammable vapors incident, Flame Lock® function utilized . . . . 13. Replace water heater, eliminate flammable vapors source. Call 1-877-817-6750.

 

http://appliantology.org/files/file/1288-whirlpool-water-heater-n30t61-303/

Whirlpool Water Heater

N30T61-303

Installation Instructions and Use & Care Guide

319118-002.pdf

1. Ok
2. Possible
3. OK
4. OK
5. OK
6. OK
7. OK
8. OK
9. What is an ECO switch
10. OK
11. Have 569 mV with heat gun, so I rule it is OK
12. Flame trap cleaned, cleaned again
13. Unit is in middle of house in a closet next to living room & bathroom.  No flammable vapor items other than using the toilet.

Link tells me I don't have permission.

[RegUS_PatOff]

Link tells me I don't have permission.

not until the Samurai approves the upload

[clman_old]

The eco ( Energy Cut Off ) is most likely the "sensor" you referred to. It is a thermal safety switch that monitors overheating of the unit and will shut down gas flow to the burner. If tripped it will not cut off gas to the pilot. Sounds like a bad circuit board in the gas control valve. The thermopile generates the voltage that the board needs to operate. If the thermopile is good the led status light should do something once the pilot has heated the thermopile up enough to generate proper voltage. According to the manual the thermopile and sensor wires do not interconnect. They have specific plug in locations on the gas valve. The manual is available on Whirlpools web site. http://whirlpoolwaterheaters.com/owner-center/product-manuals/manuals/319118-002.pdf