Bosch tankless water heater

Bosch tankless water heater

by Raul jimenex

i have a 3 system Bosch tankless water heater. It works fine until the pressure tank reaches it's engage pressure and that's when the burner shuts off even though the water is still running. The pressure switch is set at 35 on and 50 off. I then have to turn the water off for about 10 seconds and when i open it again the burner starts heating until the tank drops to 35psi.

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water heaters