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Bosch Hot Water on Demand Tank W325-2 KV1 P31 Model..Ignition Problem Having trouble igniting the pilot light via holding in the button and clicking the igniter. And if I ever do get it lit, the gas goes out when I depress the button that lets the gas through. I have plenty of gas in the tank. Just can't get it to ignite and/or stay lit. If I do ever get it to stay lit, the pilot will go out after 2 showers. Could it be my Thermocouple? If not what? Thanks

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Posted on Jan 02, 2017

  • 2692 Answers

SOURCE: Gas tankless water heater turns off during shower

Take the thermocouple out and match it up at any hard wear store. Maybe $10. Replace it .Make sure the flame is clean and hitting the rod in the center center. Ajust (Bend) accordingly.

Posted on Feb 23, 2009

kevin000
  • 1847 Answers

SOURCE: Bosch tankless GWH 1600 H NG won't always ignite

The manual says to hold a match near the pilot while the ignitor is trying. It says that if the unit lights the pilot orifice may be dirty or clogged. Then the manual says to check the voltage on the igniter. It should be 1.3 volts DC minimum if it is not means the electronic control box is defective.

Let me know the status ...Kevin

Posted on Mar 29, 2009

co7196
  • 3433 Answers

SOURCE: no hot water, pilot light lights but no burner ignition

Thermo coupler may be defective. it controls the main gas valve by closing main if pilot is out. make sure thermo coupler bulb is positioned over and near tip of pilot flame, but not in the flame. Thermo couplers are inexpensive and easy to change out.

Posted on May 06, 2009

  • 6 Answers

SOURCE: Bosch Water Wizard 600 pilot light keeps going out

You need a new thermocouple. Its the little stick like thing that the flame heats up to tell gas valve to open.

Posted on Jun 15, 2009

  • 6 Answers

SOURCE: water heater pilot light won't stay lit

Only thing left to change is the gas valve assembly.

Posted on Jun 15, 2009

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1 Answer

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Sounds like you have a hydro-generator on this unit. Check the output on the hydro-generator it should be about 1.5V DC. If not clean the inlet screen and check your water pressure. Water pressure less than 30 PSI will cause issues. If you have 1.2V-1.5V DC make sure the power switch is on. If the power switch is on replace the control unit. I sell parts for Bosch units only!

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Call Bosch
Gas Products Technical Support: 800-642-3111

That model number is only shown at one website, and that model number is not shown at Bosch.
Open following link for Bosch:
http://www.boschwaterheater.com/BoschHotWatercomHome/GasProducts/tabid/331/Default.aspx
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Some water heaters do not have a pilot light. Instead they use hot surface igniter rod that glows red hot
The igniter rod ignites the gas after solenoid valve opens and gas flows to combustion chamber.
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Before calling service technician, open following link for Bosch troubleshooting resources including parts, contact, possible manual, possible service bulletin covering replacement:
http://waterheatertimer.org/Troubleshoot-Bosch-Tankless-water-heater.html

Upvote the help.
And take advantage of fixya expert assistance live.
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if its not a fuse or the ingniter isnt functioning you may need to call a heating person who knows on demand or check Bosch on line maybe they have the trouble shooting guide if you dont.

sorry that all i can suggest hope it helps

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1 Answer

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1 Answer

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1 Answer

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Let me know the status ...Kevin

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