Bosch Propane Tankless Water Heater Troubleshooting

Error code a2 problem with the flue gas limiter. Put the other end of the garden hose near the floor drain or in a larger basket. Shut off the cold water supply and disconnect the hot water supply.

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Bosch Tankless Gas Water Heater Manual

Bosch Tankless Water Heater

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Inspect the water supply.

Bosch propane tankless water heater troubleshooting.

Flush the water heater you can connect the garden hose to the tankless water heater drain outlet near the base. Pipe joints should not be sealed with plumber s glue. How to troubleshoot a bosch tankless water heater no hot water. This can slow the flow within the tankless water heater decreasing it below activation point which shuts off the burners.

Bosch online technical support form. Warranty labor request form. This is the place for troubleshooting problems with your gas tankless water heater. Problems with water flow.

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. 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. Inspect the plumbing for restrictions. Easily identify and troubleshoot your issues with our parts diagrams pdfs.

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. 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 codes are the indicators of the problems inside the water heater. Connect the supply line to the blue inlet on the water heater.

Open the cold water supply and put a container underneath to check the water.