Maintenance - SMA SUNNY HIGHPOWER PEAK1 Instructions D'installation

4 Service
ID Description
350– Residual-current monitoring unit (RCMU)
352 self-test failed.
353 Current sensor test failed.
356– Transistor and relay test failed or inverter
361 relay has failed (contact assumed
welded).
366 Residual-current monitoring unit (RCMU)
self-test failed.
Table 4.5 Events caused by the self-test

4.2 Maintenance

Ensure that the heat sink at the rear of the inverter is not
covered.
Clean the contacts of the PV load-break switch once a year.
Clean by cycling the switch to on and off positions ten times.
The PV load-break switch is located at the bottom of the
inverter.
For correct operation and a long service life, ensure free air
circulation for the following areas:
• around the heat sink at the top and side of the inverter
where the air exhausts, and
• towards the fan on the underside of the inverter.
To clear obstructions, clean using compressed air, a soft
cloth, or a brush.
The temperature of the heat sink can exceed 70°C.
40 SHP75-10-STP60-10-IA-xx-18
Measures
Contact the service.
Contact the service.
Warning: Do not operate the DC
load-break switch of the inverter.
Switching off the DC voltage using a
suitable DC load-break switch in the
Combiner Box is still possible. Do not
perform any further actions or switching
operations on the inverter. Contact
Service immediately.
Contact the service.
SMA Solar Technology AG
DNO SMA PV
Service
Line
- x -
- x -
- x -
- x -
Installation Guide