No.
Part name Procedures
Remarks
4
Control board assembly
1. Disconnect the leads and connectors
connected to the other parts from
the control
board assembly.
1) Leads
• 3 leads (black, white, orange) connected
to terminal block.
• Lead connected to compressor :
Disconnect the connector (3P).
2) Connectors
CN31 : Outdoor fan motor (3P: white)*
(* : See Note)
CN72 : 4-way valve (2P: yellow)*
CN61 : TE sensor (2P: white)*
CN73 : PMV (6P: white)
CN64 : TS sensor (3P: white)*
CN62 :TD sensor (3P: white)*
CN63 : TO sensor (2P: white)
NOTE
These connectors have a disconnect
prevention mechanism: as
such, the lock on
their housing must be released before they are
disconnected.
2. Remove the control board assembly from the
spacer. (Remove the heat sink and control
board assembl
y while keeping them screwed
together.)
3. Remove the two fixing screws used to secure
the heat sink and control board assembly.
4. Mount the new control board assembly.
NOTE
When mounting the new control board
assembly, ensur
e that the P
.C.
board is
i
nserted
properly
into
the spacer support.
CN31,CN72,CN61,CN73,CN64, CN62 and
CN63 are connectors with locking
mechanisms: as such, to
disconnect them,
they must be pressed in the direction of the
arrow while pulling them out.
CN72
CN73
CN62
CN63
CN61 CN64
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