Question about Bosch AquaStar Indoor Natural Gas Tankless Water Heater with Vent Hood #125

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Bosch Aquastar error code F7 - Bosch AquaStar Indoor Natural Gas Tankless Water Heater with Vent Hood #125

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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: I have a Bosch AquaStar 2400ES-NG, Error Code EA

There are three electrodes (connected next to each other by a single piece of metal) that run up into the heat exchanger. They are situated behind the black plastic air intake in the lower half of the unit. Pull out the electrodes and clean them off with steel wool or fine sand paper. Also take the opportunity to blow the dust out of the inside of the unit and clean out the air intake.

Posted on Jun 15, 2009

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snap101
  • 117 Answers

SOURCE: Whistling Bosch AquaStar 2400ES-NG

if you have incorrect gas line size when it kicks on the lack of gas pressure to the unit will cause a wistling. make sure you have enough gas to the unit

Posted on Jul 29, 2009

  • 244 Answers

SOURCE: ec code come up & no hot water

Open up the front cover - look at the printed curciut board and see if you have two or three capacitors that the tops are slightly raised...if so, those capacitors on the board need to be replaced...they should be competly flat.

HTH,

Mike...

Posted on Dec 05, 2009

  • 33 Answers

SOURCE: Bosch Aquastar 2400E LP Does Not Heat Water

Sounds like the water flow sensor and servo, may just need cleaning, get it checked out by a Bosch agent

Posted on Jan 17, 2010

1stBSP
  • 52 Answers

SOURCE: i have a 250SX aquastar bosch tankless hot water

The 250 MUST have the condensate line connected. EC comes from gas supply problems and CO2 levels not being adjusted. LP units require 3/4" smooth gas pipe or 1" corrugated pipe minimum size. The LP regulator needs to be turned up to about 13 inches of water column and with all the gas appliances on, measure no less than 11 inches of water column. The CO2 levels must be measured by a qualified gas technician with a calibrated (with in 6 months) CO2 analyzer.

Posted on Apr 11, 2010

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1 Answer

Getting an F7 error that won't clear. From what I found, this indicates Ionization is on standby. What does that mean? What do I need to do? Thanks!


you must read your owner manual read the troubleshooting section, and if the problem persist, get the website with your supplier and connect via ONLINE chat with technical personal in order to Help you and fix it.
God bless you

Oct 11, 2013 | Bosch AquaStar 2400ES-NG

1 Answer

Error code F7


reset the system turn OFF and wait by 5 minutes, and start again. If the problem persist, you must get support via ONLINE chat, in order to fix it.
God bless you

Oct 11, 2013 | Bosch AquaStar Propane Tankless Water...

1 Answer

Bosch aquastar wont get hot


1) If tankless is not showing error code, the problem might be single-handled faucet cartridge:
http://waterheatertimer.org/Crossover.html
http://waterheatertimer.org/Troubleshoot-Bosch-Tankless-water-heater.html

2) Catch up on maintenance, such as cleaning combustion parts, have gas pressure checked, etc.

Feb 20, 2013 | Bosch AquaStar Natural Gas Tankless Water...

1 Answer

E7 code what to do ?


Before calling service technician, call Bosch. 800-642-3111
E7 is not shown as common error code.
Error codes are considered start-point for troubleshooting.

Open following links for general Bosch troubleshoot resources:
http://waterheatertimer.org/Troubleshoot-Bosch-Tankless-water-heater.html
Common error codes:
http://www.boschhotwater.com/HelpfulResources/TechnicalSupport/BoschAquaStarModels/2400ESTechSupport/Troubleshooting/tabid/1295/Default.aspx
Service bulletins for reading how to fix tankless yourself:
http://www.boschhotwater.com/HelpfulResources/TechnicalSupport/BoschAquaStarModels/2400ESTechSupport/ServiceBulletins/tabid/1300/Default.aspx

Aug 27, 2011 | Bosch AquaStar 2400ES-NG

1 Answer

Roblem with the Bosch 1600H-NG Natural Gas AquaStar AquaStar Natural Gas Tankless Water Heater... Aquastar gwh 1600 h igniter fails clicks does...


Problem could be air supply, gas supply, venting, part failure or combination of listed things.

Best place to start is manual.
http://www.boschhotwater.com/BoschModel1600H/FeaturesandSpecs/tabid/1024/Default.aspx

Typical 1600 manual shows troubleshoot starting page 19
http://www.boschhotwater.com/Portals/7/TechManuals/1600H_English_0606.pdf

Bosch has online tech support form:
http://forms.boschhotwater.com/Home/BoschTechSupportForm/tabid/614/Default.aspx

BOSCH error codes:
http://www.boschhotwater.com/HelpfulResources/TechnicalSupport/BoschAquaStarModels/2400ESTechSupport/Troubleshooting/tabid/1295/Default.aspx

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.

Mar 05, 2011 | Bosch 1600H-NG Natural Gas AquaStar...

1 Answer

Bosch Aquastar 2400E LP Does Not Heat Water


Sounds like the water flow sensor and servo, may just need cleaning, get it checked out by a Bosch agent

Nov 10, 2009 | Bosch AquaStar 2400ES-NG

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