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danfoss hsa3

  1. M

    Danfoss HSA3 not functioning properly

    I have a danfoss hsa3 with 3 way valve. In the last month it has stopped functioning correctly. Now when CH is called only the motor winds, clicks the midway micro switch briefly then clicks back slightly past the switch turning it off again. If HW and CH are called then it’s both work. HW...
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