Sunlight Supply Samsung Programmable Thermostat for Split Systems - Manual (Page 83)

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DC_link voltage sensor error
Indoor display ሱ ل ሱ Outdoor error
Outdoor display م ሱ ሱ DC_link voltage sensor error
1.Checklist :
1) Is the input voltage of outdoor terminal block is normal?
2) Is the reactor wire connected?
3) Is the DC_link capacitor(A*V18***:CE101,CE102,CE103,A*V24***:CE001,CE002,CE003,CE004)) assembled in accordance
the specification? (Outdoor PBA)
4) Is the DC_link resistor(A*V18***:R104,R106,R107,R108,A*V24***:R004,R005,R006,R007) value is normal? (Outdoor PBA)
2. Troubleshooting procedure
Is the connected of reactor wire?
(PBA-Reactor)
Is the DC_link sensing voltage(R104
or R004) is normal in opera Ɵonmode?
Normal range (0.2Vdc~2.8Vdc)
YES
Exchange the Outdoor PBA
NO
Is the DC_link voltage (CE101 or
CE001) is normal in opera Ɵonmode?
Normal range(280Vdc~320Vdc)
Check the power input
NO
YES
YES
Connect the reactor wire
NO
Restart a Ōer power oī.
Start the opera Ɵon (cooling mode or heaƟng mode)
Exchange the Reactor
Is the reactor insula Ɵon damaged?
YES
Exchange the Outdoor PBA
NO