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Bosch propane tankless water heater troubleshooting.
Easily identify and troubleshoot your issues with our parts diagrams pdfs.
Open the cold water supply and put a container underneath to check the water.
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.
Put the other end of the garden hose near the floor drain or in a larger basket.
Problems with water flow.
Error codes are the indicators of the problems inside the water heater.
Shut off the cold water supply and disconnect the hot water supply.
This is the place for troubleshooting problems with your gas tankless water heater.
Flush the water heater you can connect the garden hose to the tankless water heater drain outlet near the base.
Inspect the water supply.
Inspect the plumbing for restrictions.
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.
After that flush the sediment from the water heater bottom by opening the drain spigot and ensuring the water flows until it is clear.
Error code a2 problem with the flue gas limiter.
Pipe joints should not be sealed with plumber s glue.
Connect the supply line to the blue inlet on the water heater.
This can slow the flow within the tankless water heater decreasing it below activation point which shuts off the burners.