Question about Bosch AquaStar 2400ES-NG
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Posted on Jan 02, 2017
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
FA - Gas leakage error, gas valve circuit not closing properly
Posted on Mar 15, 2009
SOURCE: hot water problem
Someone has not sized the system correctly. The water heater will heat a certain GPM a certain temperature rise. Most of those "generalizations" from the manufacturers are referencing the lowest of all the flow requirements like 2 lavatories. The truth is, don't use other fixtures while showering or get a bigger system. Lots of information related to sizing the tankless system at http://www.mechanicalengineeronline.com/Mini_Sites/Tankless_Water_Heaters_Ebook/Tankless_Water_Heaters.htm Have a good one. PS:Properly sized On-Demand water heaters are actually really good. Be prepared for the day your water heater quits.
Posted on Jun 10, 2009
YOU MAY HAVE TO DESCALE YOUR UNIT I have this problem along with a bunch of error codes. Please don"t call the Bosch 888 number. They want to speak to a tech. In addition, their off during the weekend. Tankless water heaters are great when thier working. Mine is not.
Posted on Jan 25, 2010
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