Daikin MicroTech III DPS - Page 91

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www.DaikinApplied.com 91 OM 1263 • MICROTECH UNIT CONTROLLER
Figure 27: L9 – Inverter Compressor Starting Failure
YES
YES
YES
YES
YES
NO
NO
NO
NO
Check if the
compressor lead wires are
disconnected
Fix the compressor lead wire
Correct the wiring; then restart
Replace the inverter compressor
Replace the inverter compressor
Replace the compressor inverter PC board
Recheck the compressor/refrigeration circuit
Check 3
*
Check if the
power transistor is
normal
Check if the
insulation resistance of the
compressor is 100kΩ
or over
Unusual
compressor
noise?
Caution: Be sure to turn o󰀨 power switch before connecting or
disconnecting connectors to prevent parts damage.
* Check 3
See page 75