Sharp SWD-78EHL-SL Service Manual page 14

3.11 Plug on wire and check if it works
3.12 Install the control box cover back
4. Change transformer NOTE: Make sure the static protection is equipped before
doing service to protect control board.
4.1 Take off the control box cover by unscrewing 2 bolts
4.2 Take off the Control board from the plastic standoffs, then take off 2 wires by using iron.
4.3 Pull off 2 wires with connectors to other wires or control board. NOTE: The lock on the female
terminal need to be pressed down before pull out the wire connector.
4.4 Unscrew 2 bolts then take out the transformer
4.5 Change a new one
4.6 Connect wires
4.7 Install the control box cover back
5. Change control boards Inside the control box NOTE: Make sure the static
protection is equipped before doing service to protect control board.
5.1 Take off the control box cover by unscrewing 2 bolts
5.2 Pull of all wires on the board
5.3 Take out the control board and change a new one
5.4 Connect the wires back and double check with the wire connection drawing
5.5 Plug in the water dispenser and test if it work properly.
5.6 Install the control box cover back.
How to change parts
page 17