First, turn the AC/heater system off at the thermostat. Disconnect the power cord of the pump and remove the nuts connecting the AC/heater safety shutoff wires to the float switch. (This is a low voltage circuit - typically between 12 and 24 volts.) Next, remove the flexible 3/8" discharge tube from the barbed nipple. Remove the four cover screws at the corners of the pump and lift up the pump cover to slide the water reservoir away from the the PVC drain pipe. Next, you will need to clean the drain pipe and lines with bleach and water before setting the new pump in place. Reconnect the drain and discharge lines, the safety shutoff switch wires, and the power to the pump. Finally, turn on the AC/heater at the thermostat, fill the pump basin with water and test.
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