This is quite long winded, so, the short version is:
I removed all my batteries this morning while it was dark. Thinking it was going to be a dull day, I didn't do anything about covering the solar panels.
As it's been quite sunny, will I have damaged the mppt controller or panels as there isn't a load.
Thanks in advance.
Rob.
The longer version:
For the last week or so I've been having issues with the boat engine (BMC 1.5) and electrics.
Since trying a few additional electrical devices, it's overheated a few times, the fan belt was a bit loose but that's now been tightened. and then, separately, the alternator stopped charging.
The ignition bulb wouldn't illuminate and I assumed the alternator was at fault but it turned out the bulb had blown.
So, thinking everything was sorted, I went and ran the engine for about six hours and for most of that time, the inverter, a tv and console were in use. When i got bored, I went to switch the engine off only to discover the temperature was right over the red and lifting the engine covers showed steam venting out the Bowman header tank.
Once it had cooled down a bit, I topped up the coolant and checked it would start, which it did. Breathing a sigh of relief, I thought I'd been lucky and got away with it. However, yesterday, when I attempted to start charging, it wouldn't go. The glow plugs all have voltage.
I dipped the tank and there's a good few inches of fuel and also drew off some fuel which looked good and clear.. Whether there is enough fuel to cover the tank outlet, I don't know but it was running when it overheated, before I realised it was overheating I had noticed a few stutters which might indicate low fuel level.
I've just gone and got 20 litres of diesel and will take the fully charged batteries back later this afternoon and see if it'll go but am now concerned the solar system might be damaged as well.
Thanks if you took the time to read this and more so if you can offer some glimmer of hope.
Rob