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Si21-205
Error Codes and LED Indication
Troubleshooting
141
Outdoor Unit
: Displayed only when system-down occurs.
Code Indication Description
Reference Page
25/35 class 50/60 class
E5
OL activation (compressor overload)
164
195
E6
Compressor lock
165
196
E7
DC fan lock
—
197
E8
Input over current detection
166
198
EA
Four way valve abnormality
167
200
F3
Discharge pipe temperature control
169
202
F6
High pressure control in cooling
184
217
H6
Position sensor abnormality
170
203
H8
CT or related abnormality
171
204
H9
Outdoor air thermistor or related abnormality
173
206
J3
Discharge pipe thermistor or related abnormality
173
206
J6
Heat exchanger thermistor or related abnormality
173
206
L3
Electrical box temperature rise
175
208
L4
Radiation fin temperature rise
177
210
L5
Output over current detection
179
212
P4
Radiation fin thermistor or related abnormality
173
206
U0
Insufficient gas
181
214
U2
Over-voltage detection
183
—
Low-voltage detection
—
216
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 ...