SiBE12-816_D
Troubleshooting for Outdoor Unit
Service Diagnosis
240
7.5
Input Overcurrent Detection
Remote
Controller
Display
E8
Method of
Malfunction
Detection
Detected by checking the input current value
Malfunction
Decision
Conditions
The input current is at a certain value (depending on the condition) for 2.5 seconds.
The compressor halts if the error occurs, and restarts automatically after 3-minute standby.
Supposed
Causes
Defective compressor
Defective power transistor
Defective inverter main circuit electrolytic capacitor
Defective outdoor unit PCB
Short circuit
Troubleshooting
Check No.15
Refer to P.266
Check No.17
Refer to P.269
Check No.18
Refer to P.269
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
∗
An input overcurrent 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 overcurrent,
take the following procedure.
(R14411)
NO
YES
YES
NO
Start operation and measure the
input current.
Check No. 18
Check the discharge pressure.
Check No. 17
Check the installation condition.
Check No. 15
Check with the inverter checker (
∗
).
Turn off the power and disconnect
the harnesses U, V, and W.
Turn off the power, and reconnect
the harnesses. Turn on the power
again and start operation.
Replace the outdoor unit
PCB.
Correct the power supply or
replace the PM1.
(Replace the outdoor unit
PCB.)
Any LED off?
Input current flowing
above its stop level?
∗
Inverter checker
Part No.: 1225477
Содержание 2MKS40G2V1B
Страница 12: ...SiBE12 816_D 1 List of Functions Part 1 List of Functions 1 Functions 2 1 1 Cooling Only 2 1 2 Heat Pump 5 ...
Страница 180: ...SA Indoor Unit FFQ Series SiBE12 816_D 169 Operation Manual 2 Start 5s 5s 5s 5s 5s End ...
Страница 290: ...Outdoor Unit SiBE12 816_D 279 Removal Procedure 15 Lift and remove the electrical box Step Procedure Points R12537 ...