Question about Bosch AquaStar 2700ES-LP

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Need to convert 2700ES from NG to LP and just purchased the conversion kit. What is the proceedure? Can not find a Bosch tech to do the conversion in this area (12430). I am told that I need special tools.

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1 Answer

I don't have good news.
You are attempting a conversion that local technicians are refusing to do.
There is a reason why we service guys steer clear of some things: liability and continual problems afterward.

Contact Bosch and find the service bulletin for that procedure.
After all this is a highly technical and finicky machine hooked to a gas line located in proximity to people.
http://waterheatertimer.org/Troubleshoot-Bosch-Tankless-water-heater.html

If this procedure is going to cost more than $400-600, and remember there is a risk it will not work afterward or will be a continual problem, then consider installing tank-type LP water heater from local box store. I recommend this.
http://waterheatertimer.org/How-to-install-gas-water-heater.html

For others in same situation: NG to LP conversions are not supported or recommended by every manufacturer. This applies to tank and tankless.
Also check there is a qualified service technician in your area before installing tankless.
Read the manual before buying.
Tankless gas savings are $1-8 per month, but all costs are energy.
Tankless cannot be exposed to more than 11 grains hardness in the water.
Tankless are maintenance heavy, and with expected repairs, maintenance and cost of parts, cost of machine and replacement cost, a simple tank-type water heater is cheaper by far.

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.

Posted on May 18, 2011

  • Anonymous May 20, 2011

    (1) I found service bulletin for replacing 2700ES gas valve:http://www.boschhotwater.com/Portals/7/T... (2) I'm not sure what sensors have to be changed or if the PC board is changed (3)http://www.boschhotwater.com/HelpfulReso... (4) When copy-pasting links from fixya, the site will sometimes add a space to end of link > here's how to fix the fixya glitch: paste link into url, highlight link so extra space can be seen, remove extra space, then link is good.

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