Question about Bosch AquaStar 2400ES-NG

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How can I get Bosch to honor a warranty for me. I am need a control unit (Part Number 8707207296) of my water heater. I bought it at Lowe's but they told me to call Bosch, but they said the trouble shooting has to be done by an authorized Tech. I research the problem , went with the technical service bulletin and discover the issue by Bosch still says a Tech is necessary to do the work. Thanks.

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Yes Bosch is very annimate on having a service plumber check out the problem with their heater. If a qualified technician is not the one to diagnose the problem correctly they could be wasting money sending out the parts when they are not the right ones. Very understandable on their part.

Posted on Sep 16, 2010

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1 Answer

Failed Bosch AE125


Contact Bosch 800-283-3787, or service technician.
http://waterheatertimer.org/Troubleshoot-Bosch-Tankless-water-heater.html

Product has 10 year limited warranty against defects in workmanship, failed parts, failed heat exchanger for original homeowner with receipt. But does not cover neglect, failure to follow maintenance, installation etc. Pg 23 example manual
You generally have to pay for service call to verify installation, then send tankless into factory, or have service technician repair unit, at your expense minus cost of parts
http://waterheatertimer.org/pdf/Bosch-AE115-AE125_manual.pdf

To double check wiring:
http://waterheatertimer.org/How-to-wire-Tankless-electric-water-heater.html

Sep 29, 2012 | Bosch PowerStar AE125 AE125 Whole House...

1 Answer

Error codes E1 and most recently EC. We have been geting fluctuating hot and cold and now only cold water. I have replaced the OTS, cleaned the inlet filter screen, descaled the tank, with no success. ...


You had service techs and Bosch techs and neither can find a solution.
I assume you want impartial opinion at fixya.
Multiple error codes and a lack of progress by professionals implies PC board failure. BUT there could be multiple problems. Error codes are considered 'start' point for troubleshooting. Beyond that, Bosch should give you contact information to a trained professional service tech >> not just a plumber, but a guy who can do the electronic diagnostic.
Open following link for Bosch troubleshooting resources.
Tankless are high tech gadgets that cannot be exposed to more than 11 grains hardness in the water, and require continual maintenance. The cost of repairs and maintenance will never pay back from the expected $1-8 monthly energy savings.
http://waterheatertimer.org/Troubleshoot-Bosch-Tankless-water-heater.html
You can solve most tankless problems same day for $350.
Then sell the tankless unit back to Lowes or sell it for parts on auction site.
http://waterheatertimer.org/How-to-install-gas-water-heater.html

Jul 21, 2011 | Bosch 2700ES-LP Propane Tankless Water...

1 Answer

I have a Power Star electric hot water heater, model AE 125, serial # 39-203967, model 45-55130. purchased 5 years ago at Home Depot for $850.00. I love the heater when it works. This is the second time I...


Bosch has 10-year limited warranty.
Probably the seller honors warranty first 90 days and Bosch afterward.

I think warranty is similar to car warranty where parts are covered, and they pay for parts to patch up the blown transmission but not give you a new car. But I hear of cases where the company just send a whole new Tankless unit and you install it yourself.

Contact Home Depot and present them with receipt.
Contact Bosch with the same information given in Fixya question.
http://waterheatertimer.org/Troubleshoot-Bosch-Tankless-water-heater.html

Add a comment and say why unit broke down first time, and add what resolution was reached to help others with same question.

Upvote the help.
And 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.

Jun 02, 2011 | Bosch PowerStar AE125...

1 Answer

I have model no. 45-550301 and it produces hot water for a moment or so then pops the reset off..............


Sounds like you may actually need to have the unit recalibrated by a Bosch Authorized Technician. Bosch Tankless units MUST be cinstalled and calibrated by a factory trained and certified technician as they are the only ones who have the proper tools for setting up the units.
If you did not have it installed by someone who is certified by Bosch, I would recommend that you call Bosch Service and get the name of someone who is.
I myself have a Bosch NG2700 unit and have never experienced any issues with it not working. Could be that the device is wired into a branch circuit of your home that is having problems or is underrated for the unit.

The heater should be plugged into an isolated 15amp minimum outlet.

Check the breaker/outlet, then call Bosch service next. The units have a 12 year warranty, so get it checked out. You may have to pay for the labor, but if they are certified and have the calibration unit, it should run you no more than a 1 hour call.
Keith

Feb 22, 2011 | Bosch & Tankless LP Hot Water Heater

1 Answer

Gas waterheater will not stay lit


if water heater heats up and after water is hot turns off you need to replace the control unit (part where all the little pipe hook into) should have an 800 number to call where you can give serial number and model number to see if still under warranty because part is as expensive as new water heater

Nov 22, 2010 | Whirlpool Water Heaters

1 Answer

We have a Power Star Bosch water heater it find for two years but now it take longer to get the warm water and it turn back to cold very fast. Model #45-557701


Call BOSCH 800-798-8161 tech support. If it is not too old even out of warranty they will help diagnose. You can get parts for free in warranty and buy parts at www.houseneeds.com out of warranty. If it gets hot fast and then stops, one of the "Thermal cutout switches" is cutting out. The water flow it probably blocked. (Just a guess) On many models they have a "Screen" and or a "Gromet" that you can clean out. If your water is really hard the whole unit may be clogged. I believe the "SAFE" thing to do is replace it but again I say CALL BOSCH TECH SUPPORT. I have also heard of people "Cleaning the whole units with vinigar, like cleaning a coffee maker. TURN OFF POWER! TURN OFF H20! REMOVE UNIT, then clean.

May 19, 2010 | Bosch PowerStar AE115 Tankless Water...

3 Answers

AE115 is 2 years old and stopped heating the water. The red light is very, very dim which tells me it's a power problem. I've had no problems at all until now. I replaced the two 40 fuses and that did not...


Here are some possibilities and checks.
  1. The high temperature thermal cut-out has tripped. This would general shut off the Neon Light as well as the elements. However, even though your light is on check anyways.
  2. The flow switch not activating, Shut off the power to unit. Open the unit and observe if the flow switch activates when the water is turned on. If not then you have a faulty flow switch.
  3. Water flow to high. Turn the hot water tap on at the sink, adjust the outlet service valve until the water comes out of the tap at the required temperature, increase flow for cooler, decrease for hotter.
  4. The power selector screw not turned all the way to high. Check and turn all the way to high
  5. Element not working. Turn of the electricity to unit and test the resistance of the element. Here are the proper resistance for the element (240 volts, 40amps has a resistance of 2x12ohms) if no resistance than one or both elements need replacement.
I hope this gives you some more areas to check. Thanks for using FIXYA, Good Luck to you and have a great weekend. Jeff

Apr 16, 2010 | Bosch PowerStar AE115 Tankless Water...

1 Answer

I have a gas bosch water heater (2400E) that keeps shutting down and has to be reset. It shows code A3. What is this code? What do I do to correct this problem. Call the installer. I have had the unit...


you should contact the installer....4 months old should still be under their installation warranty. I looked at the site and it does not mention an A3 code...

Oct 18, 2009 | Bosch Water Heaters

2 Answers

Where may I purchase a gas control valve/thermostat for a whirlpool BFG1F3030S3NOV


Wolsley Group Heating replacment parts dept best of luck

Oct 13, 2009 | Water Heaters

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