111
16.4.15. J3 Malfunction
Malfunction decision conditions
When the voltage signal that IPM send to compressor drive chip is abnormal, the
display LED will show “J3” and AC will turn off.
Supposed causes
●
Wiring mistake
●
Faulty IPM board
●
Faulty outdoor fan ass’y
●
Compressor malfunction
●
Faulty outdoor PCB
At first test the resistance between every two ports of U, V, W of IPM and P, N. If any result of them is 0
or close to 0, the IPM is defective. Otherwise, please follow the procedure below:
Summary of Contents for HP Series
Page 8: ...5 2 2 Part names of Indoor Outdoor units Cassette Units...
Page 9: ...6...
Page 10: ...7 Ceiling floor Units...
Page 14: ...11 2 3 2 7 Outside Water Pump for Optional When Ceiling Installation...
Page 24: ...21 Ceiling floor Units...
Page 28: ...25 YFKE18BXTMCM RX YFJE18BXTMCM RX YFKE24BXTMCM RX YFJE24BXTMCM RX...
Page 43: ...40 6 2 Outdoor Unit YUKE18BYTMCMO X YUJE18BYTMCMO X YUKE24BYTMCMO X YUJE24BYTMCMO X...
Page 44: ...41 YUKE12BYTMCMO X YUJE12BYTMCMO X...
Page 57: ...54 12 Field Wiring 9K 24K...
Page 104: ...101 P U P V...
Page 105: ...102 P W P N...
Page 108: ...105 High temperature protection of IPM board diagnosis and solution P2...
Page 115: ...112 16 4 16 J4 Malfunction...
Page 119: ...116...