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Bosch neckar gas heater

I am living in Spain where they sell Neckar boilers. This one in particular has got massive flames mostly yellow which are carbonising and causing smoke, is there a regulator for the butane input. Thank you.

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 51 Answers

SOURCE: Bosch 1600h NG not heating water hot enough

it sounds to me like the dip tube has failed. this is a plastic tube that is inside the water heater on the cold side. It is designed to put the incoming cold water at the bottem of the tank allowing heated water out at the top. when this tube deteriorates the cold water mixes at the top of the tank instead of the bottom. a new dip tube is about 5 bucks but must be inserted on the cold side by someone with plumbing experience.

Posted on Jan 09, 2009

co7196
  • 3433 Answers

SOURCE: The Pilot burner flame is large & yellow

the pilot is getting too much air and is an indicaiot of dirty or air/ fuel ratio imbalance. The pilot is wimpy and the thermocoupler has alot to do with the gas . Make sure your thermocoupler is on the tip of the flame. You may end up replacing it. because it is showing signs of eminnt failure. When it fals your curners won't fire up. Good luck.

Posted on Jun 09, 2009

  • 1015 Answers

SOURCE: I have a Bosch Aqua

It sounds to me like you tried about everything I would. So I think you're already thinking about what I would do next. Try the flame sensor,and as last resort check all connection . Remove wires one by one clean and reattach. If all else fails change cotrol board. It's very hard to fix when it's not consistent. Good luck. Thanks

Posted on Nov 15, 2010

  • 5089 Answers

SOURCE: no flame on my gas water heater

1) Copy following link to troubleshoot by type of gas control.
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent

2) Clean air intake, and check if air intake is clogged, causing overheating caused by reduce air intake and slowed exit of combustion by-product up the vent.
http://waterheatertimer.org/How-to-repair-Rheem-TRD.html

3) Post question on pro water heater forum:
http://www.thetankatwaterheaterrescue.com/forums/forum3/

Posted on Dec 03, 2012

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1 Answer

It often flashes ea or af and doesnt want to light


Before calling service technician, open following links for troubleshoot resources including common error codes, Bosch contact information, link to service manuals, and possible product manual
http://waterheatertimer.org/Troubleshoot-Bosch-Tankless-water-heater.html
http://www.boschhotwater.com/HelpfulResources/TechnicalSupport/BoschAquaStarModels/2400ESTechSupport/Troubleshooting/tabid/1295/Default.aspx

Call Bosch 800-642-3111
Multiple error codes can mean PC board failure.
AF might be A9, but not sure.
EA is 'no flame ionization detected with water flow'
  1. Verify that all manual gas shut off valves are open.
  2. Check gas type.
  3. Reset error code and open a water tap to cycle the heater in an effort to purge air on new installations. Cycling hot water tap on and off multiple times may be necessary. If heater still faults with EA error code, have a licensed gas technician properly purge air out of the gas line leading to the water heater.
  4. Check three wire connections to ignition group on the lower front of the heat exchanger are secure.
  5. Check gas pressure.
  6. Check venting specifications are met. Improper venting may cause premature failure of the flame sensor rod.
  7. Check that the minimum power fan speed has been adjusted to the proper value.
  8. Observe inside the viewing window of the heat exchanger when a hot water tap is opened. Sparking should be followed by a steady blue flame. If flame is unstable or yellow with proper gas pressure.

Aug 11, 2011 | Bosch AquaStar 2400ES-NG

1 Answer

Pilot flame is not large enough to contact thermo couple


Before calling service technician, open following link for Bosch troubleshoot resources, including manuals and Bosch contact information:
http://waterheatertimer.org/Troubleshoot-Bosch-Tankless-water-heater.html

Each gas water heater manual recommends yearly maintenance that includes cleaning the burner and combustion parts, which includes check of connections, sensors, venting, gas pressure and air filter, etc.
Yearly maintenance covers most common problems that cause tankless failure.

Jul 28, 2011 | Bosch AquaStar Indoor Natural Gas Tankless...

1 Answer

Bosch GWH 715 ES flashing EA code. This unit was working fine for over a year so I am assuming gas pressure can't be the problem? The spark is flashing and the unit lights for about 2 seconds then...


http://www.digelair.net/pdfs/TECHLIT/BOSCH/MANUALS/Bosch-ProTankless_AM.pdf
http://www.bosch-climate.us/files/201009031238250.GWH715ES_English_12.2008.pdf

Above are the manuals required to diagnose and service your error code.

EA: No flame ionization detected with water flow.
Verify that all manual gas shut off valves are open. Check gas type. Reset error code and open a water tap to cycle the heater in an effort to purge air on new installations. Cycling hot water tap on and off multiple times may be necessary. If heater still faults with EA error code, have a licensed gas technician properly purge air out of the gas line leading to the water heater. Check three wire connections to ignition group on the lower front of the heat exchanger are secure. Check gas pressure. Check venting specifications are met. Improper venting may cause premature failure of the flame sensor rod. Check that the minimum power fan speed has been adjusted to the proper value. Observe inside the viewing window of the heat exchanger when a hot water tap is opened. Sparking should be followed by a steady blue flame. If flame is unstable or yellow with proper gas pressure.

Jul 07, 2011 | Bosch & Tankless LP Hot Water Heater

1 Answer

No Spark at the boiler end ,tried purging the system but still no luck water pressure is fine.???????


Before calling service technician, open following link for Bosch tankless troubleshooting resources:
http://waterheatertimer.org/Troubleshoot-Bosch-Tankless-water-heater.html

Fix most tankless problems do-it-yourself, same day any brand, for $317
http://waterheatertimer.org/How-to-install-gas-water-heater.html

Add a comment for more free help.
Also take advantage of fixya expert assistance live.
For a price, expert works with you while you work on water heater or any do-it-yourself project.
Fixya is always less expensive than a service call.

Apr 28, 2011 | Bosch 1600H-NG Natural Gas AquaStar...

1 Answer

I have a bosch aqvastar 250 sx ng error code EC keeps appearing


Q. EC - Ionization failure during operation
A.
  1. Verify gas type (See Fig. 2 in installation manual) corresponds with the type of gas supplied to the heater.
  2. Verify the three yellow wire connections to the set of electrodes (underside of the burner assembly) are secure.
  3. Verify that venting meets specifications per chapter 3.6 of the installation manual. Improper venting may cause premature failure of the flame sensor rod.
  4. Check gas pressure. See Bulletin TWH-G2-03.
  5. Check and adjust CO2 readings. See Bulletin TWH-G2-12.
  6. Gas valve or flame sensor may be damaged. Call Bosch Water Heating with observations and results of previous steps.

Mar 06, 2011 | Bosch & Tankless LP Hot Water Heater

1 Answer

My worcester bosch 28 si 11 series is fireing up on heating and systematicaly every couple of seconds turning the flame down to half flame then turning back up to full flame and the spark electrodes are...


This could well be a fan relay fault on the pcb, as in if the fan is cutting in and out it's triggering the pressure switch which in turn is sending confusing signals to the ignition and gas valve. Have you removed the controls connector cover and observed the righthand of the two little white boxes in the middle of the control board (pcb) with the boiler switched on? (be careful because it's live i.e DO NOT TOUCH ANYTHING) Is it sparking?

Nov 18, 2010 | Bosch Water Heaters

4 Answers

Ideal c24


Hi Jurgie,
I'm Harvey, the Master Plumber,
Happy to render my assistance.

This is your problem!
When you are switching on the boiler it ignites for 8 to 10 seconds, then it cuts off and the lock out lamp comes on. Pressing the reset button or turning on the hot water tap has the same effect.

I need to get the make and model of your specific boiler to give you an accurate answer!
Waiting for your response.
Harvey, your Master Plumber.





Sep 07, 2008 | Bosch 1600P-NG Natural Gas AquaStar...

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