Troubleshooting for Outdoor Unit (25/35 class)
Si21-205
174
Troubleshooting
Troubleshooting
Check No.6
Refer to P.189
P4
: Radiation fin thermistor
J3
: Discharge pipe thermistor
J6
: Outdoor heat exchanger thermistor
H9
: Outdoor air thermistor
Turn on the power again.
Reconnect.
Reconnect.
Replace defective one(s) of
the following thermistors.
l
Radiation fin thermistor
l
Discharge pipe
temperature thermistor
l
Outdoor unit heat
exchanger temperature
thermistor
l
Liquid pipe temperature
thermistor
l
Gas pipe temperature
thermistor
l
Outdoor air temperature
thermistor
Replace the following
thermistor.
l
Indoor unit heat
exchanger thermistor
Replace the outdoor unit
PCB. (Replace the indoor
unit PCB.)
(R3043)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Error displayed again
on remote controller?
NO
YES
YES
YES
NO
Indoor unit
heat exchanger thermistor
functioning?
NO
Connector or thermistor
disconnected?
NO
YES
Normal?
C
heck No.
6
Check the thermistor resistance
value.
C
heck No.
6
Check the indoor unit heat
exchanger thermistor resistance
value in the heating mode.
Summary of Contents for Sky Air B-Series R-410A
Page 7: ...Si21 205 vi Table of Contents ...
Page 15: ...Models Si21 205 4 Model Name and Power Supply ...
Page 16: ...Si21 205 Functions 5 Part 2 Functions 1 List of Functions 6 ...
Page 35: ...Wireless Remote Controller Si21 205 24 Remote Controller ...
Page 79: ...Settings Concerning Maintenance Si21 205 68 Field Setting Detail of PCB 2 ...
Page 83: ...Maintenance Mode Setting Si21 205 72 Field Setting ...
Page 239: ...Troubleshooting for Outdoor Unit 50 60 class Si21 205 228 Troubleshooting ...
Page 321: ...Outdoor Unit 50 60 class Si21 205 310 Removal Procedure ...