The water gets warm but not hot what could it be
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.
SOURCE: Tankless water heater pilot light will not stay on
It is most likely the water valve stuck open, telling the controls to heat water, that it thinks is flowing through it, but without actual flow it overheats. Depending on how comfortable you are with taking it apart yourself, you could open the valve to see if it just needs cleaned out, or if you have a ruptured diaphragm or some other cause.
SOURCE: why am i getting a A3 error code on my bosch aqua
Question is though, why would this fail after only six months?
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.
SOURCE: i have the bosch
how is heating element ? Wasit on with no water running thru it. Does it have a reset?
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