Connect the black probe to the negative black lead on the solar panel.
How to check solar panel plates are damage or not.
Also the problem is visible during an el test.
During manual soldering the solar cell breakage rate is higher than during automatic soldering.
Connect the red probe to the positive red lead on the solar panel.
Measure the current by following these steps.
See how to test your solar panel for open voltage and current reading.
If your panels face in more than one direction then split the difference.
If your panels face in a northerly direction from northeast through to northwest and the power output is roughly 80 of the total panel capacity then your system is probably working fine.
A simple health check is to look at the colour of the lights shining on the box during daylight hours when the system s meant to be running.
The volt reading on your multi meter should be close to or just under 60 volts.
Alternatively the solar cell has been damaged during handling most likely during the soldering process.
Results will vary depending on sun strength time of day angle of light and temperatu.
A red or orange light during daylight hours means there s a system event or fault.
Move the red lead on the dmm to the 10adc socket and set the range to 10 a.
Touch the multi meter s red positive lead to your solar panel s positive wire.
Then touch the multi meter s black negative lead to your solar panel s negative wire.