Watkins IQ2020 Heater Relay Board- Replaces #74618 UOM:EA Product Specifications

Product Specifications

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Category: Grundfos

Low power consumption

Watkins IQ2020 Heater Relay Board- Replaces #74618 UOM:EA Product SpecificationsIQ 2020 Heater Relay Board, 2001 2008 (Replaces #74618) With this circuit board you can replace the existing faulty heater relay and once again heat your Hot Springs Spa. To diagnose a faulty relay, first turn temp up high Test for voltage at heater terminals and input at board, If no voltage at heater but voltage at board input then the board is faulty This is a final sale part