Seasonal Caravan
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CBE • Solar Charge Regulator
CBE PRM330
Official technical documentation and workshop diagnostics for PRM330.
Master Troubleshooting & Diagnostics Matrix
Error Code / Indicator
Symptom / Meaning
Step-by-Step DIY Fix
Suggested Actions
Red LED ALARM
Reverse polarity of photovoltaic modules and/or leisure battery
Possible Cause:
Wrong connection
Correct the wiring connection to ensure proper polarity for the photovoltaic modules and/or leisure battery.
DIY Safe
