Daikin Stylish Series - Page 48

2 | Components
Service manual
48
(C)(F)TXA15~50A(W)(S)(T) + (C)(F)TXA15~50B(B)(S)(T) + RXA42+50A +
RXA20~35A + RXA42+50B
Split Stylish R32
ESIE18-03C – 2020.02
Compressor motor winding
measurements are correct?
Action
No Replace the compressor, see
"2.2.2Repair procedures"[450].
5 Re-connect the Faston connectors and install the cover of the compressor
wire terminals.
6 Install the compressor insulation.
7 Turn ON the power using the respective circuit breaker.
8 Start the unit operation via the user interface.
9 Once the compressor operates, measure the U-V-W inverter voltages. All
measurements MUST be the same.
Inverter voltage measurements are
correct?
Action
Yes Continue with the next step.
No Replace the inverter PCB, see
"2.10Inverter PCB"[479].
10 Measure the current in each phase U-V, V-W and U-W. All measurements
MUST be the same.
Compressor motor winding current
measurements are correct?
Action
Yes Perform an insulation check of the
compressor, see "2.2.1Checking
procedures"[445].
No Preventively replace the compressor,
see "2.2.2Repair procedures"[450].
To perform an insulation check of the compressor
Prerequisite: First perform an electrical check of the compressor, see
"2.2.1Checking procedures"[445].
Prerequisite: Stop the unit operation via the user interface.
1 Turn OFF the respective circuit breaker.
DANGER: RISK OF ELECTROCUTION
Wait for at least 10 minutes after the circuit breaker has been turned OFF, to be sure
the rectifier voltage is below 10VDC before proceeding.
2 Remove the cover of the compressor wire terminals.