Question about Stiebel Eltron Mini-4 Tankless Water Heater

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Stiebel Mini 4 won?t activate using 40l/min pump

I’m using a 40 l/min pump to run water from a tank through the Stiebel Eltron Mini 4, but the unit won’t activate. I tested the pump and the water heater separately and they both work fine; the pump seems to run enough water and the water heater works fine on public water system.
Also, when using the pump the water flow coming from the water heater is very low.

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You have to make sure that the pump is flowing enough water to activate the Stiebel. The tankless unit has a activation rate of a certain amount of water to turn it on.

Posted on Jan 20, 2009


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