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Mend Grundfos UPS 15-50 Pump Position Central Water

Grundfos Selectric UPS 15-50 pump?

The pump is constantly in the on position, even when the central heating and the water systems are off.

Before, when both systems are off, the pump is off at the same time. Please help?

Philip
December 2009
GrundfosGrundfos UPS 15-50Heating, Home Heating SystemsPump Position Central Water

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