Samsung Electronics
5-7
Troubleshooting
5-3-5 When the compressor Does not Operate
1) Trouble cause
1 When the power voltage is out of the operating range or power cable contact is bad.
2 Wrong connection or bad contact of wire. ( indoor to outdoor)
3 Main PCB defect(RY71, IC02, MICOM)
2) Check items
1 Is the power voltage normal? (AC187~AC253V)
2 Check the wireing of the outdoor and indoor unite for a wrong connection or poor contact.
3 Is the compressor waiting for 3 minutes?
4 Is the set temperature not set iower than the current temperature during the cooling operation?
5 Is the set temperature not set iower than the current temperature during the cooling operation?
Tu rn off the power, and then turn it on in 5 seconds.
C o m p ressor and relay are good.
Check the MICOM(IC01) and replace it.
Then check the wiring of indoor and outdoor unit for a
w o rng connection open.
Y
Y
Y
N
N
N
N
Y
Check IC07 (KID65003AP) and replace it.
Replace the compre s s o r.
Is the output wave of pin no. 3of MICOM (IC1) high?
(Check when the compressor on.)
A re the voltage across the relay (RY71)coil DC 12V?
(Check when the compressor is on.)
Is the voltage across the electronic contactor terminal AC 187~253V?
(Check when the compressor is on.)
Operate start/stop key to start the heating r cooling operation and
then does the relay (RY71) be on and compressor start ?
Summary of Contents for APH180HD
Page 4: ...2 2 Samsung Electronics 2 2 Dimensions Indoor Unit Outdoor Unit unit mm 330...
Page 31: ...Samsung Electronics 6 7 6 2 Outdoor unit...
Page 38: ...Samsung Electronics 8 1 8 PCB Diagrams 8 1 Ass y Main PCB...
Page 42: ...Samsung Electronics 8 5 8 2 Ass y PANEL PCB...
Page 45: ...Samsung Electronics 9 1 9 Wiring Diagrams 9 1 Indoor Unit 9 1 1...
Page 46: ...Samsung Electronics 9 2 9 1 2 Wiring Diagrams...
Page 47: ...Samsung Electronics 9 3 Wiring Diagrams 9 1 3...
Page 49: ...10 1 10 Schematic Diagrams 10 1 Indoor Unit Samsung Electronics...
Page 50: ...Samsung Electronics 10 2 10 2...
Page 51: ...Samsung Electronics 10 3 10 3...