A factory service item from Enertech Global, the Greenville, Illinois manufacturer of geothermal heat pump systems sold under the Enertech, GeoComfort, Hydron Module and TETCO brands. Enertech identifies it as a 10k resistor kit under part number 28K124-01NN.

Enertech does not publish a public cut sheet for this component, so it should be ordered by part number. Because service part numbers can be superseded or made model specific, match the part to the unit model and serial number, or to the part number called out in the wiring diagram or service literature for the equipment being repaired.