Case Model - Daikin · In service maintenance, use this function and check the malfunction for the compressor. *1:Power transistor checking function ... ( PC boards or compressor)

November 26, 2010

★Reliable technology ensures maximum customer satisfaction.★ M-10014

According to the room air conditioner service manuals, it is described that use a check tool (Inverter checker), and to check it in trouble diagnosis flow chart of malfunction (L5 / E6 / E8 / H6 / H8) for compressor. But it is difficult to judge the malfunctions for the DC compressor. Therefore, modified the service manuals for detailed information on a check method. [ Check method for DC compressors] In the case of the condition that DC compressor is not connected to PCB board of the outdoor unit and start DC compressor, it is difficult to judge the malfunction for the compressor, using the check tool. It is because that the output on PCB board of the outdoor unit is generated for a few seconds. Power transistor checking function*1 is provided on the PCB board of the outdoor unit that is installed DC compressor. When DC compressor is not connected to PCB board, it is easy to check the output from the PCB board. In service maintenance, use this function and check the malfunction for the compressor. *1:Power transistor checking function This function is that the output from PCB board of the outdoor unit is generated for a certain time. The narrowing of the L5 to H8, malfunction factor ( PC boards or compressor) becomes easy by using this function.

Case

Model

<<Room air conditioner>> Change of diagnosis for the compressor , using Inverter checker

Refer to the following page

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[Setting method and notes for power transistor checking function] <Setting method>Power transistor checking method is set according to the following steps. Pattern Setting method Operation Outdoor unit PC board has the forced operation switch.

Push and hold the forced operation switch for 5 seconds.

The output is energized immediately and after a few mins, it is de-energized.

Outdoor unit PC board has no forced operation switch.

Using the remote controller, set Fan mode And conduct the test operation.

The output begins three minutes later after having set it. After a few mins, it is de-energized.

The setting is available in the first re-booting on the controller. When another procedure is performed at the power-up and set this procedure, this function is not available. (Be sure that this power transistor checking function is not available at this case.) <Note> ・ After remove the lead wires from the compressor terminal*2, perform this

setting method. (Be careful short-circuit.) When the lead wires are connected to the compressor and start the compressor using the power transistor checking method, this procedure can damage the compressor.

When check the malfunction for the compressor using inverter checker, shade the light at bright outdoor and perform LED status confirmation of the checkers because of the low output from a board(LED brightness is low). ◇ When all LEDs are lit uniformly : Compressor malfunction ◇ When some of LEDs are not lit (LEDs are not lit or go off, etc.)

: PC boards malfunction *2 Be sure to re-crimp the FASTON terminal for resetting compressor.

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Service manuals with Inverter checker description and method of power transistor check and method of power transistor check

1.Split & Multi

Manual Code Error Code E6 Error Code E8 Error Code H6 Error Code H8 Error Code L5 Inverter Checker

Method of Power

Page Page Page Page Page Page transistor

check

Si01-501 115 118 122 124 132 - E

Si041009 66 68 76 - 85 - A

Si041024 55 56 62 - 71 - A

Si04-306 102 105 109 111 119 - E

Si04-306A 104 107 111 113 121 - E

Si04-306B 108 111 117 119 127 - E

Si04-306C 110 113 119 121 129 - E

Si04-306D 116 119 125 127 135 - E

Si04-306E 119 122 128 130 138 - E

Si04-402 84 86 93 - 98 - A

Si04-402A 86 88 95 - 100 - A

Si04-506 109 111 118 - 127 - A

Si04-604 90 92 99 - 104 - A

Si04-701 99 102 108 110 118 - E

Si04-703 102 105 113 115 123 - E

Si04-703A 104 107 115 117 125 - E

Si04-703J 102 105 113 115 123 - E

Si04-803 108 110 117 - 126 - A

Si04-803A 110 112 119 - 128 - A

Si04-807 88 90 97 - 106 - A

Si04-830 115 117 122 - 131 - A

Si04-901 99 101 108 110 117 - E

Si05-310 77 80 84 86 94 - E

Si06-305 83 84 88 90 98 - A

Si06-313 81 84 88 90 98 - E

Si10-417 43, 44, 45, 47 50, 53, 55, 57 78, 80, 82, 84 86, 88, 90, 92117, 119, 120,

122, 123 - A, E

Si10-417_A 92, 93, 95, 97,

99

104, 107, 109, 111, 113, 115,

117 152, 154, 156,

158 162, 164, 166 207, 210, 212 285, 286 A, C, E

Si10-417_B 92, 93, 95, 97,

99

104, 107, 109, 111, 113, 115,

117 152, 154, 156,

158 162, 164, 166 207, 210, 212 285, 286 A, C, E

Si12-205 187 190 194 196 204 - E

Si12-308 185 188 192 194 202 - E

Si12-308A 185 188 192 194 202 - E

Si12-411 182 185 189 191 199 - E

Si12-411A 184 187 191 193 201 - E

Si12-523 244 247 253 255 263 - E

Si12-619 219, 220 223 231 233 245 - E

Si12-619A 226, 227 230 238 240 252 - E

Si12-628 204 207 213 215 223 - E

Si12-710 120 123 129 - 138 - A

Si12-710A 120 123 129 - 138 - A

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Si12-714 192 195 201 203 211 - E

SiAR04-608 89 91 98 - 107 - A

SiAU01-602 102 104, 106 116, 117 120 128 - A, E

SiAU01-717 80 83 91 93 101 - E

SiAU041001 68 70 78 - 87 - A

SiAU041002 72 74 81 83 91 - E

SiAU041003 68 70 77 79 87 - E

SiAU04-413 79 80 84 86 94 - A

SiAU04-510 82 85 91 93 101 - E

SiAU04-529 - 78 - 82 90 - A

SiAU04-610 90 92 99 - 108 - A

SiAU04-610J 90 92 99 - 108 - A

SiAU04-805 87 89 96 - 101 - A

SiAU04-835 87 89 96 - 101 - A

SiAU04-910 104 107 116 118 128 - E

SiAU04-912 88 90 97 - 106 - A

SiAU05-615 87 89, 91 103 106 116 - A, E

SiAU05-810 84 86 92 - 100 - A

SiAU05-913 77 79, 81 93 96 106 - A, E

SiAU05-913_A 71 73 83, 84 87 97 - A, E

SiAU06-414 84, 85 87, 89 96, 97 99, 101 111 - A, E

SiAU06-613 91 93, 95 107 110 120 - A, E

SiAU06-707 93 95, 97 109 112 121 - A, E

SiAU06-812 87 89 96 - 105 - A

SiAU06-906 79 81 88 90 97 - E

SiAU06-914 81 83, 85 97 100 109 - A, E

SiAU06-914_A 74 76 86, 87 90 100 - A, E

SiAU07-616 85 87, 89 100 103 112 - A, E

SiAU07-813 78 80 86 - 95 - A

SiAU07-813_A 68 70 80, 81 84 94 - A, E

SiAU12-711 206, 207 210 218 220 232 - E

SiAU12-916 170, 171 174 182 184 196 - E

SiAU12-916_A 167 170 179, 180 182 192 - E

SiBE041010 68 70 77 - 86 - A

SiBE041011 83 85 92 94 102 - E

SiBE041012 84 86 94 - 103 - E

SiBE041025 63 64 72 - 81 - A

SiBE041029 72 74 81 83 91 - E

SiBE04-207 111 114 118 120 128 - E

SiBE04-302 99 100 104 106 114 - A

SiBE04-401 103 105 111 - 120 - A

SiBE04-401A 117 119 125 - 134 - A

SiBE04-507 98 100 107 - 116 - A

SiBE04-507A 122 124 131 - 140 - A

SiBE04-512 103 105 111 - 120 - A

SiBE04-512A 109 111 117 - 126 - A

SiBE04-609 125 128 132 134 142 - E

SiBE04-609A 125 128 136 138 146 - E

SiBE04-611 92 94 101 - 110 - A

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SiBE04-624 166 169 178 - 187 206, 207 C

SiBE04-624A 166 169 178 - 187 206, 207 C

SiBE04-630 98 100 107 - 116 - A

SiBE04-704 98 100 107 - 115 - A

SiBE04-705 128 131 139 141 149 - E

SiBE04-808 139 141, 143 156 159 172 - A, E

SiBE04-808_A 115 117 127, 128 131 139 - A, E

SiBE04-809 90 92 101 - 110 - A

SiBE04-824 94 96, 98 108 111 121 - A, E

SiBE04-925 93 95, 97 110 113 126 - A, E

SiBE04-925_A 86 88 98, 99 102 110 - A, E

SiBE05-311 83 84 88 90 98 - A

SiBE05-312 79 82 86 88 96 - E

SiBE05-513 87 89 96 - 105 - A

SiBE05-513A 91 93 100 - 109 - A

SiBE05-612 88 91 95 97 105 - E

SiBE05-612A 88 91 99 101 109 - E

SiBE05-612B 91 94 102 104 112 - E

SiBE05-722 88 90 97 - 106 - A

SiBE05-722_A 78 80 87 - 98 - A, E

SiBE06-514 91 93 100 - 109 - A

SiBE06-514A 95 97 104 - 113 - A

SiBE06-614 87 90 94 96 104 - E

SiBE06-614A 87 90 98 100 108 - E

SiBE06-708 99 101, 103 115 118 128 - A, E

SiBE06-708_A 95 97 106, 107 110 120 - A, E

SiBE06-708J 99 101, 103 115 118 128 - A, E

SiBE06-723 92 94 101 - 110 - A

SiBE07-516 81 83 90 - 99 - A

SiBE07-516A 85 87 94 - 103 - A

SiBE07-617 81 83 90 - 99 - A

SiBE07-618 80 83 87 89 97 - E

SiBE07-618_C 70 72 79 81 89 - E

SiBE07-618A 80 83 91 93 101 - E

SiBE07-618B 85 88 96 98 106 - E

SiBE07-724 86 88 95 - 104 - A

SiBE07-724_A 82 84 91 - 102 - A, E

SiBE121021 315 317 324 326 334 - E

SiBE12-314 101 104 110 112 120 - A

SiBE12-415 103 106 112 114 122 - A

SiBE12-415A 111 114 120 122 130 - A

SiBE12-519 145 148 154 156 164 - A

SiBE12-522 188 191 197 199 207 - E

SiBE12-522A 220 223 229 231 239 - E

SiBE12-620 227 230 236 238 246 - E

SiBE12-625 215 218 224 226 234 - E

SiBE12-626 212 215 221 223 231 - E

SiBE12-626A 213 216 222 224 232 - E

SiBE12-627 169 172 178 180 188 - A

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SiBE12-712 211 214 220 - 229 - A

SiBE12-712A 219 222 228 - 237 - A

SiBE12-712AJ 219 222 228 - 237 - A

SiBE12-712B 219 222 228 - 237 - A

SiBE12-712C 219 222 228 - 237 - A

SiBE12-713 251 254 260 262 270 - E

SiBE12-713J 251 254 260 262 270 - E

SiBE12-727 248 251 257 259 267 - E

SiBE12-728 248 251 257 259 267 - E

SiBE12-816 191 194 200 - 209 - A

SiBE12-816_A 212 214 219 - 227 - A, B, D

SiBE12-817 214 217 223 225 233 - E

SiBE12-818 228 231 237 239 247 - E

SiBE12-819 231 234 240 242 250 - E

SiBE12-908 134 137 144 - 153 173, 174 B

SiBE12-933 190 193 199 - 208 - A, D

SiBR12-714 192 195 201 203 211 - E

SiCN041013 76 78 87 - 96 - A

SiCN041013E 76 78 87 - 96 - A

SiCN041014E 69 71 80 - 89 - A

SiCN041015 62 63 70 - 79 - A

SiCN041015E 62 63 70 - 79 - A

SiCN041034E 66 67 74 - 83 - A

SiCN04-320 80 83 87 89 97 - E

SiCN04-408 - 66 - 72 80 - A

SiCN04-408C - 66 - 72 80 - A

SiCN04-409 80 83 89 91 99 - E

SiCN04-409C 80 83 89 91 99 - E

SiCN04-508 89 91 98 - 107 - A

SiCN04-508A 91 93 100 - 109 - A

SiCN04-508AC 91 93 100 - 109 - A

SiCN04-508C 89 91 98 - 107 - A

SiCN04-706 91 93 100 - 109 - A

SiCN04-706A 95 97 104 - 113 - A

SiCN04-706AC 95 97 104 - 113 - A

SiCN04-706C 91 93 100 - 109 - A

SiCN04-731 86 89 95 97 105 - E

SiCN04-731C 86 89 95 97 105 - E

SiCN04-732 79 80 87 - 96 - A

SiCN04-801 86 89 97 - 106 - A

SiCN04-905 68 70 77 - 86 - A

SiCN04-905C 68 70 77 - 86 - A

SiCN04-911 98 101 108 - 117 135, 136 C

SiCN04-911C 98 101 108 - 117 135, 136 C

SiCN04-934 65 66 72 - 81 - A

SiCN04-934C 65 66 72 - 81 - A

SiCN061016 60 62 69 71 79 - E

SiCN061016E 60 62 69 71 79 - E

SiCN061035E 62 64 71 - 80 - A

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SiCN06-209A 76 79 85 87 95 - E

SiCN06-209AC 76 79 85 87 95 - E

SiCN06-515 74 77 83 85 93 - E

SiCN06-515C 74 77 83 85 93 - E

SiCN06-709 75 78 86 88 96 - E

SiCN06-709A 75 78 86 88 96 - E

SiCN06-709AC 75 78 86 88 96 - E

SiCN06-709C 75 78 86 88 96 - E

SiCN06-730 80 83 89 91 99 - E

SiCN06-730C 80 83 89 91 99 - E

SiCN06-907 59 62 68 70 77 - E

SiCN06-907C 59 62 68 70 77 - E

SiCN07-410 69 72 78 80 88 - E

SiCN07-410C 69 72 78 80 88 - E

SiCN07-527 75 77 84 - 93 - A

SiCN07-725 75 77 84 - 93 - A

SiCN07-725C 75 77 84 - 93 - A

SiCN07-825 84 86, 88 101 104 112 - A, E

SiCN07-825C 84 86, 88 101 104 112 - A, E

SiCN12-403 118 121 125 127 135 - E

SiCN12-403C 118 121 125 127 135 - E

SiCN12-412 125 128 132 134 142 - E

SiCN12-412C 125 128 132 134 142 - E

SiCN12-524 145 148 154 156 164 - E

SiCN12-524C 145 148 154 156 164 - E

SiCN12-629 143, 144 147 155 157 167 - E

SiCN12-629_B 120 123 131 133 143 - E

SiCN12-629A 147, 148 151 159 161 171 - E

SiCN12-629AC 147, 148 151 159 161 171 - E

SiCN12-629C 143, 144 147 155 157 167 - E

SiCN12-629EB 120 123 131 133 143 - E

SiHK12-922 98 101 107 - 116 - A

SiKR12-734 134 137 139 141 149 - E

SiKR12-734E 134 137 139 141 149 - E

SiKR12-926 130 133 139 141 149 - E

SiSG04-511 78 81 85 87 95 - E

SiSG04-828 81 84 90 92 100 - E

SiSG09-517 - 69 - 71 79 - E

SiSG12-520 101 104 108 110 118 - A

SiSG12-520A 105 108 112 114 122 - A

SiSG12-521 141 144 146 148 156 - E

SiTH04-606 121 123, 125 130, 131 134 142 - A, E

SiTH04-607 80 83 87 89 97 - E

SiTH04-802 117 119 124 - 133 - A

SiTH04-929 69 71, 73 80 83 91 - A, E

SiTH12-831 124 127 131 133 141 - E

SiTW041006 123 125 133, 134 137 147 - A, E

SiTW041006E 123 125 133, 134 137 147 - A, E

SiTW04-509 86 89 95 97 105 - E

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SiTW04-735 160 163 172 - 181 200, 201 C

SiTW04-735E 160 163 172 - 181 200, 201 C

SiTW04-735J 160 163 172 - 181 200, 201 C

SiTW04-804 93 95 102 - 111 - A

SiTW04-804A 89 91, 93 105 108 116 - A, E

SiTW04-804AC 89 91, 93 105 108 116 - A, E

SiTW04-804B 95 97, 99 111 114 122 - A, E

SiTW04-804BC 95 97, 99 111 114 122 - A, E

SiTW04-823 86 88 95 - 104 - A

SiTW04-823C 86 88 95 - 104 - A

SiTW12-815 145 148 156 158 166 - E

SiTW12-815C 145 148 156 158 166 - E

SiTW12-815EA 188 190 197 199 207 - E

SiTW12-833 93 96 102 - 111 - A

SiTW12-833C 93 96 102 - 111 - A

SiTW12-923 98 101 107 - 116 - A

SiTW12-923_A 91 93 98 - 106 - A

SiTW12-923C 98 101 107 - 116 - A

SiTW12-923EA 91 93 98 - 106 - A

SiUS041008 84 86 95 - 104 - A

SiUS04-550 116, 117 119, 121 132, 133 136 144, 146 - A, E

SiUS04-702 133, 134 136, 138 149, 150 153 161, 163 - A, E

SiUS04-904 115, 116 118, 120 129, 130 133 141, 143 - A, E

SiUS04-921 121 124 132 - 141 155, 156 C

SiUS04-924 86 88 95 97 104 - E

SiUS09-651 158, 159 161, 163 174, 175 178 186, 188 - A, E

SiUS12-551 102 105 109 111 119 - E

SiUS12-814 129 132 140 142 150 - E

SiUS12-928 99 102 110 112 120 - E

SiUS12-928_A 96 99 108, 109 111 121 - E

2. SKYAIR

Manual Code Error Code E6 Error Code E8 Error Code H6 Error Code H8 Error Code L5 Inverter Checker

Method of Power

Page Page Page Page Page Page

transister check

Si20-502 359, 390 360, 393 364, 397 366, 399 374, 407 - D, E

Si21-205 165, 196 166, 199 170, 203 172, 205 180, 213 - D, E

Si21-205A 165, 196 166, 199 170, 203 172, 205 180, 213 - D, E

SiCN28-901(C) 162 168 184 186 203 - E

SiCN28-901 162 168 184 186 203 - E

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3) Enter to power transistor checking mode

Entering method to Power transistor checking mode

Type Entering method

A Pattern A ARC423 First time after power on

From indoor unit ARC433 Fan operation

ARC452

ARC455(except A5)

B Pattern B ARC452A5

ARC466

C Pattern C ARC447

D Pattern D-1 Wired(BRC1C61, BRC1D528)

(SkyAir) Pattern D-2 Wireless

Pattern D-3 Wired(BRC1E51)

E - - Forced cooling operation

From outdoor unit Press and hold 5 seconds

Note; Refer next page for detail entering method to power transistor checking mode

【Pattern A】

1 Turn power on

2 Select "Fan mode" on remote controller operation mode

3 Press the TEMP▲, TEMP▼ and MODE buttons on the remote controller simultaneously.

→「00」 will be displayed and first digit blinks.

4 Press MODE button.

→「00」 will be displayed and second digit blinks.


→「T」 will be displayed

6 Press ON/OFF button.

→Operation start with power transistor checking mode.

【Pattern B】

1 Turn power on


3 Press the TEMP▲, TEMP▼ and MODE buttons on the remote controller simultaneously.

→「SC」 will be displayed.

4 Press the TEMP▲, TEMP▼ and display 「T」.


→Entering to TEST mode.



【Pattern C】

1 Turn power on

2 Press and hold the CLOCK button for 5 seconds on remote controller.

→「SETTING 1.TEST」 will be displayed

3 Press CLOCK button

→「T」 will be displayed.

4 Press CLEAN/FRESH button


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【Pattern D-1】

1 Turn power on



→Fan operation will be started.

4 Press TEST button 4 times.


【Pattern D-2】

1 Turn power on



→Fan operation will be started.

4 Press TEST button 2 times.


【Pattern D-3】

1 Turn power on

2 Press and hold Cancel button for 4 seconds.

→Field setting menu will be displayed.

3 Reverse the TEST operation ON/OFF display using TEMP▲, TEMP▼ button.

4 Press Menu/Enter button.

→Test operation will be displayed.

5 Press ON/OFF button within 10 seconds.


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Si01-501 Troubleshooting

Service Diagnosis 115

4.8 Compressor Lock

Remote Controller Display

E6

Method of Malfunction Detection

A compressor lock is detected by checking the compressor running condition through the position detection circuit.

Malfunction Decision Conditions

The position detection circuit detects a compressor frequency of below 10 Hz for 20 seconds or a frequency of above 160 Hz.40 seconds after the compressor has started, the position detection circuit detects a compressor frequency of above 180 Hz.The system will be shut down if the error occurs 16 times.Clearing condition: Continuous run for about 5 minutes (normal)

Supposed Causes

Compressor locked

Troubleshooting

Turn off the power. Disconnect the harnesses U, V and W.

∗ Inverter checker Part No.: 1225477

Correct the power supply or replace the SPM. (Replace the outdoor unit PCB.)

Replace the compressor.

Check the electronic expansion valve. Replace it as required.

Replace the compressor.(R2842)

CautionBe sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred.

NO

YES

YES

System shut down after errors repeated

several times?

NO

NO

Normal?

YESEmergency stopwithout compressor

running?

Check with the inverter checker (∗).

Turn off the power and reconnect the harnesses. Turn on the power again and get the system restarted.

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テキストボックス

※Refer P.144,144a,144b for detail

Troubleshooting Si01-501

118 Service Diagnosis

Troubleshooting

Check No.07Refer to P.138



Replace the outdoor unit PCB.

Replace the electrolytic capacitor.


Correct the power supply or replace the SPM.(Replace the outdoor unit PCB.)

(R4716)


Input current flowing above its stop level?

NO

YES

Normal?NO

YES

Any LED off?YES

NO


Turn off the power, and reconnect the harnesses. Turn on the power again and get restarted.

Turn off the power and disconnect the harnesses U, V and W.

Get restarted and measure the input current.

Check No. 08Check the discharge pressure.

Check No. 07Check the installation condition.

Check No. 14Check the main circuit electrolytic capacitor.

∗ An input over-current may result from wrong internal wiring. If the wires have been disconnected and reconnected for part replacement, for example, and the system is interrupted by an input over-current, take the following procedure.

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4.13 Position Sensor Abnormality

Remote Controller Display

H6

Method of Malfunction Detection

A compressor startup failure is detected by checking the compressor running condition through the position detection circuit.

Malfunction Decision Conditions

The compressor fails to start in about 15 seconds after the compressor run command signal is sent.Clearing condition: Continuous run for about 5 minutes (normal)The system will be shut down if the error occurs 8 times.

Supposed Causes

Compressor relay cable disconnectedCompressor itself defectiveOutdoor unit PCB defectiveStop valve closedInput voltage out of specification

Troubleshooting


Replace the outdoor unit PCB, outdoor unit fan.


Reconnect as specified.


Correct the power supply or replace the outdoor unit PCB.


(R2847)


NormalNO

NO

NO

YES

YES

NO

YES

Any LED off?

DC380±30V?

Electricalsor compressor harnesses

connected asspecified?

Check the electrolytic capacitor voltage.



Check No. 13Check for short-circuit.

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Troubleshooting


Turn off the power and turn it on again.

Check No. 12Check the capacitor voltage.


* Inverter checker Part No.: 1225477





Check the supply voltage.(R2848)


∗ Running current as shown at right with relay

cable 1 or 2?

YES

Current (guideline)

2 sec Time

Rising with increasingfrequency

Capacitor charged when the indoor unit or outdoorunit main relay turns onNO

NO

DC380±30V?YES

Voltage within the allowable range (Supply

voltage±15%)?

YES

NO

Any LED off?

Compressor running?YES

NO

YES

NO

Get the system started.

Measure the rectifier input voltage.



Turn off the power and reconnect the above harnesses. Then turn on the power again and get the system restarted.

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Troubleshooting




Fully open the stop valve.

Keep on using as it is (monitor).Check the electricals' connectors and other fittings.



Replace the SPM.(Replace the outdoor unit PCB.)

Correct the power supply.


(R4705)


Stop valve fully open?NO

YES

∗ An output over-current may result from wrong internal wiring. If the wires have been disconnected and reconnected for part replacement, for example, and the system is interrupted by an output over-current, take the following procedure.

Error again?NO

YES

NO

YES

Voltage as rated?

YES

NO

Short-circuitor breakage between

compressor's coil phases?

NO

YES

Normal?

YES

NO

Any LED off?

Turn off the power and turn it on again to get the system started. See if the same error occurs.

Turn off the power and disconnect the harnesses U, V and W.

Monitor the supply voltage, discharge and suction pressures, and other factors for a long term.

Possible causes Instantaneous supply voltage

drop Compressor motor overloaded Contact-induced electrical short-

circuit


Turn off the power, and reconnect the harnesses. Turn on the power again and get restarted.

Check the supply voltage.

Check No. 13Check the power transistor.

Check No. 08Check the discharge pressure.

Check No. 07Check the installation condition.

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3) Enter to power transistor checking mode

Entering method to Power transistor checking mode

Type Entering method

A Pattern A ARC423 First time after power on

From indoor unit ARC433 Fan operation

ARC452

ARC455(except A5)

B Pattern B ARC452A5

ARC466

C Pattern C ARC447

D Pattern D-1 Wired(BRC1C61, BRC1D528)

(SkyAir) Pattern D-2 Wireless

Pattern D-3 Wired(BRC1E51)

E - - Forced cooling operation

From outdoor unit Press and hold 5 seconds

Note; Refer next page for detail entering method to power transistor checking mode

144

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【Pattern A】

1 Turn power on 2 Select "Fan mode" on remote controller operation mode 3 Press the TEMP▲, TEMP▼ and MODE buttons on the remote controller simultaneously.

→「00」 will be displayed and first digit blinks. 4 Press MODE button.

→「00」 will be displayed and second digit blinks. 5 Press MODE button.

→「T」 will be displayed 6 Press ON/OFF button.

→Operation start with power transistor checking mode. 【Pattern B】

1 Turn power on 2 Select "Fan mode" on remote controller operation mode 3 Press the TEMP▲, TEMP▼ and MODE buttons on the remote controller simultaneously.

→「SC」 will be displayed. 4 Press the TEMP▲, TEMP▼ and display 「T」. 5 Press MODE button.

→Entering to TEST mode. 6 Press ON/OFF button.

→Operation start with power transistor checking mode. 【Pattern C】

1 Turn power on 2 Press and hold the CLOCK button for 5 seconds on remote controller.

→「SETTING 1.TEST」 will be displayed 3 Press CLOCK button

→「T」 will be displayed. 4 Press CLEAN/FRESH button

→Operation start with power transistor checking mode. 【Pattern D-1】

1 Turn power on 2 Select "Fan mode" on remote controller operation mode 3 Press ON/OFF button.

→Fan operation will be started. 4 Press TEST button 4 times.

→Operation start with power transistor checking mode. 【Pattern D-2】

1 Turn power on 2 Select "Fan mode" on remote controller operation mode 3 Press ON/OFF button.

→Fan operation will be started. 4 Press TEST button 2 times.


【Pattern D-3】 1 Turn power on 2 Press and hold Cancel button for 4 seconds.

→Field setting menu will be displayed. 3 Reverse the TEST operation ON/OFF display using TEMP▲, TEMP▼ button. 4 Press Menu/Enter button.

→Test operation will be displayed. 5 Press ON/OFF button within 10 seconds.


144a

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144b

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Case Model - Daikin · In service maintenance, use this function and check the malfunction for the compressor. *1:Power transistor checking function ... ( PC boards or compressor)

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