System has been running well and as expected since commissioned about 6 weeks ago. But for the last 3 days, the MPPT 100/50 output wattage is fluctuating and the level is much lower than expected.
The last three days have been overcast but in the past 6 weeks during similar overcast conditions the system has maintained a fairly consistent 100W to 200W PV output.
System has four Longi LRS 72HPH 550W Mono panels wired in parallel to the MPPT. The MPPT is charging a Volthium LiFePO 24VDC 200ah battery that connects to a Magnum Pure Sine Wave Inverter/Charger - MS4024PAE.
Here is a sample from Victron Connect. Output wattage fluctuates randomly from near 0 W to less than 140 W. When scanning, the MPPT seems to hit 600W (in one instance) but then returns to the fluctuating output.
I would appreciate any troubleshooting tips. I have already checked the PV wiring and connections.
Thank you
