Figure 17- Replace Circuit Board - Rheem RUUD Iraining Manual

5. Disconnect all the Molex connections to the circuit board. The Molex connections only
go one way and to its respective receiver. If you are in doubt, label the wires (or write on
the Molex) as you remove them with the connector number from the board. This is
especially important for the thermistors.
6. Press the plastic spring clips of the retainers at the four
corners of the board. Remove the board and leave the spring
clips on the water heater.
7. Replace board on the four spring clips
8. Reconnect all Molex connections.
9. Return power to the water heater and check for safe
operation.
Figure 17– Replace Circuit Board
24
Heat Pump Water Heater