ESIE16-03B | Part 2. Troubleshooting 2.4. Component checklist
22/08/16 | Version 1.1 Page 55
SA R32 Sky-Air RZAG-L
2.4.2.7. Main PCB
Not applicable.
1. Switch off the Daikin unit via the user interface.
2. Switch off the Daikin unit with the field supplied circuit breaker.
3. Remove plate work when required (refer to "Basic removal" on page 67).
4. Switch on the Daikin unit with the field supplied circuit breaker.
5. Switch on the Daikin unit via the user interface.
6. Check if the HAP LED is blinking in regular intervals (1/0,5 sec), if not blinking, replace the main PCB board (refer to "Replacing
main PCB" on page 89).
7. Measure the supply voltage to the main PCB board: there should be ± 220 V between brown and blue cable. If not correct
voltage, replace the electrical noise filter PCB (refer to "Replacing electrical noise filter" on page 80).
8. Switch off the Daikin unit via the user interface.
9. Switch off the Daikin unit with the field supplied circuit breaker.
10. Remove plate work when required.
11. Open the compressor insulation.
12. Remove the terminal cover of compressor wiring.
13. Measure the voltage on S70: pin 7-4 and wait until it drops below 10 VDC.
14. Disconnect the compressor wires and connect the compressor wires to the Inverter Analyzer (SPP number 1368521).
Technical specification Description
Location
Piping diagram Wiring diagram Switch box Component overview of unit
See "Outdoor unit" on
page 117.
See "Outdoor unit" on
page 115.
See "Outdoor unit" on
page 122.
See "Outdoor unit" on page 119.
Check procedure
Mechanical check
Electrical check
WARNING: RISK OF ELECTROCUTION
The smoothing capacitor must discharge below 10 VDC before removing the compressor wiring.
INFORMATION
Note the position of the cables on the compressor wire terminals to allow identical wiring during reinstallation.
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