Pipe joints should not be sealed with plumber s glue.
Bosch propane tankless water heater troubleshooting.
Inspect the water supply.
In the event of any temperature instability with the use of a temperature balance shower valve refer to shower valve manufacturer s instructions for internal adjustment setting.
Easily identify and troubleshoot your issues with our parts diagrams pdfs.
How to troubleshoot a bosch tankless water heater no hot water.
Put the other end of the garden hose near the floor drain or in a larger basket.
Check that the water pressure of the unit is above 30 psi if it s not you can do the following test to check the flow rate.
Flush the water heater you can connect the garden hose to the tankless water heater drain outlet near the base.
Error codes are the indicators of the problems inside the water heater.
This can slow the flow within the tankless water heater decreasing it below activation point which shuts off the burners.
This is the place for troubleshooting problems with your gas tankless water heater.
Shut off the cold water supply and disconnect the hot water supply.
Bosch online technical support form.
After that flush the sediment from the water heater bottom by opening the drain spigot and ensuring the water flows until it is clear.
Inspect the plumbing for restrictions.
Open the cold water supply and put a container underneath to check the water.
Error code a2 problem with the flue gas limiter.
When the error code appears on the bosch heater s lcd display the reset button sometimes leads to an error removal but if it doesn t work the instructions below might help troubleshoot the problem.