Troubleshooting (Inverter)
SiE 00-07
164
Troubleshooting R-407C PLUS Series
5.6
Power Supply Insufficient or Instantaneous Failure
Remote Controller
Display
U2
Supposed Causes
Power supply insufficient
Instantaneous failure
Open phase
Defect of inverter unit
Defect of outdoor PC board
Defect of K1M.
Main circuit wiring defect
Troubleshooting
(VF068)
Replace K1M.
NO
Turn on again.
Replace the outdoor unit
PC board.
YES
Turn K1M ON.
YES
NO
Is 220 ~ 240 V of power
reaching the K1M
coil?
Is 220 ~ 240 V at
the connector of X1A.
Replace the inverter unit.
Replace the inverter unit.
YES
NO
NO
Does
the voltage
between terminals P
and N gradually rise to 339
VDC (Y1) after turning
on?
"U2" blinks again.
Monitor field power supply.
The voltage
between the P and N
terminals is 320 VDC (Y1)
or morewhen the
compressor
is running.
YES
NO
Is 220 ~ 240 V
at the connector of X5Aof
outdoor PC board
side?
Check
the transmission
wiring between the outdoor
unit PC board and
inverter unit.
YES
Содержание VRV R-407C PLUS Series
Страница 1: ...System R 407C PLUS Series Service Manual SiE 00 07...
Страница 11: ...Introduction SiE 00 07 x...
Страница 17: ...Product Outline SiE 00 07 6 General Information R 407C PLUS Series...
Страница 41: ...Specifications SiE 00 07 30 Specifications R 407C PLUS Series...
Страница 90: ...SiE 00 07 Test Operation Test Operation R 407C PLUS Series 79 1 3 Outdoor Unit PC Board Ass y Outdoor Unit...
Страница 119: ...Test Operation SiE 00 07 108 Test Operation R 407C PLUS Series...
Страница 132: ...SiE 00 07 Troubleshooting by Remote Controller Troubleshooting R 407C PLUS Series 121...