3.4 Buzzer Alarm
The buzzer beeps 10 times when a fault occurs. Each time lasts for 5 seconds with an
interval of 1 second. The buzzer sound can be turned off on your phone.
3.5 Routine maintenance
To ensure the safe and smooth operation of the EP900 ESS, follow the checklist
below for regular routine maintenance.
• Check fans and heat sinks for dust and other debris that may also accumulate on
other components within the system, reducing power efficiency and increasing
wear and tear.
• Check that fans are running properly, without any noise or other abnormalities.
• Check that all cables are secured. Please use a torque wrench to tighten the AC
and DC cable connections annually.
Fault Code
5.
6.
7.
8.
9.
10.
11.
26.
34.
BUS overvoltage
BUS2 overvoltage
Battery overvoltage
Inverter overcurrent
Inverter2 overcurrent
LLC1 current overcurrent input
LLC2 current overcurrent input
PV fault
Overcurrent input
Content
Table 3-5 Fault Code
JUST POWER ON24
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