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6 Disconnect the connector of the indoor/outdoor connection wires (Brown, Blue and Black) and remove the
fixing screw of the earth wire (green).
7 Remove the screw (2 piece) which fixes the power-supply box to the outer side panel (right).
1(L) 2(N)
S71
3
Fixing screw of
outer side panel (right)
Connector of the
indoor/outdoor
connection wires
Fixing screw
Earth wire
8 Pull the outer side panel (right) towards you while pulling up the fixing tab (1 location) of the powersupply box
to disengage the tab.
9 Lift up the power-supply box to remove it.
18.3.4 Removing the Control Board
1 Perform “17.2.1 Removing the Outer Top Panel and Outer Front Panel”.
2 Perform “17.2.2 Removing the Electrical Component Covers (2 & 3-way valve Cover and Terminal Plate
Cover)”.
3 Perform “17.2.3 Removing the Power-Supply Box”.
4 Disengage the tabs (6 locations) and remove the metal cover.
Notes on disassembly: During the replacement of outdoor control board, the control board and plastic
power-supply box are separated by removing the screws (2 pieces) on the soldered surface. These two
parts can be replaced as an integrated piece by applying silicon to them.
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