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Why is my Conext CL showing an alarm code: 2633 & 2634 (PV1 OC Wrn & PV2 OC Wrm Service Alarm)

Issue: 
Customer is calling to confirm an alarm code: 2633 & 2634 (PV1 OC Wrn & PV2 OC Wrm Service Alarm)

Product Line: 
Conext CL 18000NA Conext CL 25000NA Conext CL 20000 Conext CL 25000E

Environment:  
On site troubleshooting

Resolution: 
Check the PV1 or PV2 generator in the units power meter 
If the unit’s power meter doesn’t match with the readings on a handheld meter, replace the unit

Cause:
Improper string sizing
Problem on one MPPT input due to a string problem
Unbalanced current between 2 inputs > 100%
PV1 or PV2 input over current detected, hence the power output from PV1 or PV2 is stopped (half a power capability)
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