Water-level meter (fresh water tank) not working

[popotla]

Two days ago we filled our 100-liter fresh-water tank then noticed yesterday that the reading is still "full", even though the tank is in fact just under half-full. This morning we put in more water (not full); still the reading is "full". This is of course inconvenient and needs to be put right. Could the fault be something simple?

 

[Landy Andy]

Do you have an access hole to your tank? If yes you may be able to move the float if stuck, or give the contacts a wipe over, which may have scale on.

 

[Gellyneck]

If you have a system that says 0% \ 25% \ 50% \ 75% \ 100% it may have multi-sensors that get "furred \ clogged" up and give false readings. They basically measure the level by electro-conductivity through the water.
It's a frequent issue and most folk, like us, just ignore it. You can clean them but give it a month or two and the problem will be back.
You can get replacement sensors that seem to work better and I think Diabalo may have fitted them.

 

[popotla]

Do you have an access hole to your tank?

Yes, through the big filler-cap, which unscrews, on the top of the tank.

Earlier today I had a look, as far as this is possible, and put my hand and arm in there but there didn't appear to be a float. (But maybe I didn't look properly.)

If you have a system that says 0% \ 25% \ 50% \ 75% \ 100% it may have multi-sensors that get "furred \ clogged" up and give false readings.

We don't have this system. It measures (or claims to measure) in exact liters.

 

[WillH]

We've ignored ours for years, you get to know how much you've used.

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[Diabalo]

If you have a system that says 0% \ 25% \ 50% \ 75% \ 100% it may have multi-sensors that get "furred \ clogged" up and give false readings. They basically measure the level by electro-conductivity through the water.
It's a frequent issue and most folk, like us, just ignore it. You can clean them but give it a month or two and the problem will be back.
You can get replacement sensors that seem to work better and I think Diabalo may have fitted them.

Never had a prob with the fresh tank readings just the grey, tried all the usual but the problem returned after a few weeks. In the end I fitted Horst miracle probes and never had a problem since and that was 3 years ago. I got mine direct from the states at about half the price of the UK seller below

https://www.tankblanket.co.uk/shop/

 

[Landy Andy]

Shove your hand and probably arm through the hole and feel the sides of the tank. You will then probably find metal studs that are the contacts, and give them a good wipe over with your hand.