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Bosch 16h when hot water is turned on the ignition ticks and turns on the pilot light but the gas burners will not ignite and therefore does not heat up the water ... have checked the gas and water connections and they are fine .. was getting hot water not too long ago and then all of a sudden it stopped heating up without any controls being adjusted .. could I please have some kind of idea of what could be causing this and what can be done to rectify the problem? thanks

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: stove top pilot light

I have a GE Gas Stove XL44 the stove top buners don't light by themselves without manual lighting. When I turn on the buner knob the buner doesn't click. Also I used my self- cleaning oven for the first time and stopped it before the time was up after that is when the stove top buners wouldn't light by theirselves.

Posted on Feb 08, 2008

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muttandjeff
  • 359 Answers

SOURCE: Burners wont ignite

does unit have thermo-cupling

Posted on Nov 24, 2008

dragonsthatk
  • 547 Answers

SOURCE: gas dryer burner won't stay lit on maytag dryer

thermo cupple need's to be replaced

Posted on Feb 17, 2009

  • 659 Answers

SOURCE: Furnace runs about 1 minute, then total shutdown

What type of gas supply line do you have? Is it black pipe or copper? If it is copper, there can be a film like substance that builds up on the inside of the copper. The debris will the get caught in a pre screen where the supply enters the valve thus cutting the supply of gas to the unit. Also, the thermocouple may be bad. You didn't say that you replaced it. Try replacing it as well. Also, you could have a limit switch turning the system off and thus cutting the gas off completely but it is highly unusual for the pilot to be cut off as well unless the pilot is being blown out when the gas is shut off. Also, turn the unit to fan only without calling for heat. Using a flame of some sort, put it into each baffle of the heat exchanger. If your flame is being blown around in one of the baffles, then you have a hole in the heat exchanger and what is happening is that the roll out switch is cutting the unit off and the air still moving through the heat exchanger is blowing the pilot out. I have seen this actually happen. If your furnace is in excess of 15 years old, it does need to be checked for possible holes. If it is in excess of 25 years old, it is a huge possibility that the unit has already developed a hole. If you feel hair coming out of one of the baffles, then shut the unit down immediately and have it replaced!

Posted on Apr 05, 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

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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.
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Some water heaters do not have a pilot light. Instead they use hot surface igniter rod that glows red hot
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