What are the typical causes of failure of the Victron Energy BlueSolar charge controller MPPT 150 / 45 - Tr. My controller stopped working after 5 years and 4 months of installation (just 4 months after warranty expiry).?
@JDJ Check connections, fuses and measure voltages at various points to try and isolate any potential external factor. See 6. Pre-RMA test form - MPPT solar charger Describe what your failure is e.g. completely dead, burning smells, no leds etc. Reset the device if you have the means to access the device and look for error codes.