We recently had some bad weather with lighting strikes since then my MicroCare MPPT100A is no longer charging and remains in the sleeping mode although the sun is shining. With a voltmeter I checked the voltage at the panel circuit breaker and give a 14V reading. Checking the voltage at the battery circuit breaker I got a reading of -1. I dont know what that means.
Does it mean that the MPPT is bust and need to be repaired or replaced.
Can anyone please assist