Question about Bosch Water Heaters

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My GWH 635 ES tankless water heater is now 5 years old, and from day one, it has made a squeeling noise...I called the factory technician and did some things to it, but it still squeels. I have had several problems with it, and now the technicians in town want $75.00 just to come out and dignoise the problem, and then charge me for fixing it...What can I do to fix this problem...I paid over $900 for the heater, and it still doesnt work like is should...what can I do???

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Try looking at this. might be a thermostat problem, usually a cheap fix and found on feebay. https://www.bosch-climate.us/files/201009031229480.635ES_English_11.2007.pdf

Posted on Jun 08, 2017

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Posted on Jan 02, 2017

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  • 25 Answers

SOURCE: Keep getting error codes and have to reset too often

This paticular problem your having is specific to the jumper in the heater. The jumper is for condensing heaters. Your heater does not have the specific wiring or computer for condensing. So they added a jumper in the wiring. It is failed or failing. It should ohm out at about 120ohms. sometimes its just a loose connection. Check this out, and called 1-800-642-3111, they have been very busy, but leave them a message and they will call you back.

Posted on Jan 19, 2009

  • 234 Answers

SOURCE: Bosch Pro tankless water heater overheating

The vent pipe you use is the correct size for the heater.Longer runs require bigger pipe.I also would check to see if the water is getting to hot.

Posted on Mar 16, 2009

gary1121
  • 332 Answers

SOURCE: Looking for Outdoor Tankless propane water heaters

it will tell you right on the box if it for indoors or out doors either way they have to have a cover over them,,

Posted on Jun 09, 2009

  • 67 Answers

SOURCE: rheem gas tankless water heater with error code c4 13

problem is inside burner compartment o2 sensor dirty or block..need to have a qualify technician clean it.

Posted on Jul 31, 2010

  • 1 Answer

SOURCE: Paloma tankless, gas, water heater, error code C7 76

My Paloma tankless water heater had a code of C7 - 76. I called the service center at 866-720-2076 and they stated this code showed a communication error between the Water Heater and the thermostat; they stated it was still under warrantee and they would replace it for free. Also, I found out there was a recall related to the door properly shutting. To make it work while waiting for the repair, I would turn off the thermostat, wait 2-3 minutes, and turn it back on. Usually it would work for enough time to shower.

Posted on Oct 06, 2010

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1 Answer

My GWH 715 ES cannot restart after hot into cold water crossover


Check for obstruction in your watervalve. It has a flow meter, that needs to spin freely. Remove the watervalve and blow through it, you should hear it spin.
Also make sure you dont have an error code showing. Hold down your reset button for 5 seconds to reset an error code and get back to your set temp.

Jan 02, 2014 | Bosch ProTankless GWH 715 ES LP Tankless...

1 Answer

The heater does not shut off when the faucets are turned off. It is intermittent and after turning the faucet on and off a few times it will eventually shut off. What the solution to fix this problem?


First, add a comment and describe which heater you have: tankless, tank, gas, electric, which brand, approximate age of installation, and what you have done so far.

Next would be to turn off all taps, and put ear on pipe and listen for water leak.

If cold water is running and hot is off, and single-handled faucet has crossover problem, then a water heater will continue to receive incoming water causing waste of energy
http://waterheatertimer.org/Crossover.html

Next would be to review product manual for troubleshoot, and required maintenance.
Next would be to call installer, if installation is new.
Next would be to call manufacturer and ask for name of qualified service technician in area, and check if your product is still under warranty.

If you have tankless computer water heater, and unit is older than 5 years, then imagine how well your 5 year old laptop computer works, and then install tank-type heater to avoid continual maintenance and failures:

http://waterheatertimer.org/How-to-install-gas-water-heater.html

Gene
h

Sep 13, 2013 | Bosch GWH 425 EF L Water Heater

1 Answer

My Jacuzzi J-N180F tankless water heater will not even light.


Access your product manual.
I cannot find a product manual.
Some major company, like Rheem, makes this computer that heats water.

Call service technician to repair the unit.
Copy following link for overview of type of problems found with tankless computers.
For example tankless computers require continual maintenance on yearly and monthly basis to prolong expected life of product.
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

If tankless computer is older than 5 years, then assume it is like your 5-year old laptop computer.

Save problems, and repair the unit yourself, same day, by installing tank-type water heater:
http://waterheatertimer.org/How-to-install-gas-water-heater.html

Gene
h

Aug 27, 2013 | Jacuzzi 7.5 GPM 180000 BTU Internal Gas...

1 Answer

Where can I download a Boschw14 b31 gas Heater Manual


Is this a water heater? Bosch site might have manual. And service bulletins, but I have not heard of that model.
http://www.bosch-climate.us/Bosch-Hot-Water/
Call local service technician who is qualified to work on tankless computer that heats water.
You can fix any brand tankless computer, any problem, same day, yourself by replacing 1 part: the whole thing:
http://waterheatertimer.org/How-to-install-gas-water-heater.html
Gene
l

Aug 05, 2013 | Bosch ProTankless GWH 715 ES LP Tankless...

1 Answer

I have a Bosch Tankless Water HEater Model GWH 2700 ES NG with an error code of A3. I was told to push reset and the problem would be resolved. This worked several times and now it doesn't work. ...


Yes. Contact Bosch.
Error codes are considered start-point for troubleshoot.
http://waterheatertimer.org/Troubleshoot-Bosch-Tankless-water-heater.html

Tankless are complex electronic machines.
If on-site plumbers cannot figure out problem, then you need trained service technician with a service manual for your specific product, who can ohm-test the electronics.
Bosch will have a list of trained service technicians. And maybe Bosch has another step for fixing problem yourself.

Fix most tankless problems yourself, same day, for $330.
http://waterheatertimer.org/How-to-install-gas-water-heater.html

Aug 14, 2011 | Bosch AquaStar 2400ES-NG

1 Answer

Where can i download a GWH 715 ES manual?


Are you looking for sell sheet pdf, or install-care manual, or service manual.
Search: GWH 715 ES manual .pdf
Adding .pdf to search parameter helps locate manuals.

Sell sheet with venting overview, technical and product specs:
http://www.globaltowne.com/manuals/sell_sheets/715-800SellSheetFINAL.pdf

Manual for ES high altitude, with installation, error codes and troubleshoot:
http://www.bosch-climate.us/files/201009031238250.GWH715ES_English_12.2008.pdf

I cannot find a service manual, or service bulletins:
http://www.bosch-climate.us/support-center/downloads/bosch-manuals/earlier-models.html

Aug 11, 2011 | Bosch ProTankless GWH 715 ES LP Tankless...

1 Answer

I have a bosch gwh 2400 es ng and when i program the temp. it resets back to 100 degrees


Before calling service technician, open following link to download typical manual, get Bosch contact information etc.
http://waterheatertimer.org/Troubleshoot-Bosch-Tankless-water-heater.html

Add a comment with your experience so others with same-similar problem can benefit.

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 11, 2011 | Bosch AquaStar 2400ES-NG

1 Answer

Burner will not light


Try this web site!
http://www.protankless.com/BoschProHome/GasProducts/BoschGWH425HN/tabid/506/Default.aspx
Copy & Paste to Google search engine.

Jan 27, 2009 | Bosch ProTankless GWH 715 ES LP Tankless...

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