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8-3-1. Checking the outdoor unit
8-3. Checking the Outdoor System
Work procedure
Apply 220 V AC between terminals L1 and L2 on the
outdoor unit terminal plate.
•
Short-circuit the T-RUN terminal to the COM terminal
of TEST/T-RUN terminals.
•
The LED (red) on the control board must illuminate.•
The compressor and fan motor must turn ON.
(They turn ON about (70) seconds later after the power
is turned ON.)
•
No.
1
2
Check items (unit operation)
NOTE
If the above check items are okay, but the outdoor unit does not operate, there may be a faulty
connection between the indoor unit and the outdoor unit.
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