Grey waste tank sensor

WelshGas · May 23, 2020

Chopper24 said:
Found it... What do you think does that little crack suggest i Need to change It because the tank is empty but shows one line full?

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Up to you really. The waste sensor is not that accurate. As long as the black float moves freely you could leave it.

Chopper24 · May 23, 2020

Ok thank you for advice

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Chopper24 · May 23, 2020

Last question please forgive me. how many line tacks should the display on control panel read on this sensor? Zero for empty? And full how many? I now have one tack and the tank is empty?

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Loz · May 23, 2020

Yes, needs replacing, the crack has allowed water to corrode the internal microswitches. The float has a magnet in it that operates the 2 microswitches.

Davide Fiorio · Friday at 9:33 PM

Loz said:
I think I have posted this before, but it's correct that the grey water tank has less levels of indication than the fresh water tank.
View attachment 37782

Davide Fiorio · Friday at 9:34 PM

Do you know value in Ohm of the G126 sensor? Empty and full?
Thank's

Davide From Italy

vbk1975 · Saturday at 7:11 AM

Davide Fiorio said:
Do you know value in Ohm of the G126 sensor? Empty and full?
Thank's

Davide From Italy

I can’t tell you the resistance at the moment, I can do it on Monday.

But I can tell you the switching points - if you go into the Diagnostic menu (lots of posts tell you how - @WelshGas posts it often) and select the Hardware Menu (see example below)

AN3 is the value for the Waste - see switching points - I haven’t done the full sweep (note the error flash is always flashing full regardless if it is open or short circuit)

Davide Fiorio · 2024-04-15T07:22:47+0100

vbk1975 said:
I can’t tell you the resistance at the moment, I can do it on Monday.

But I can tell you the switching points - if you go into the Diagnostic menu (lots of posts tell you how - @WelshGas posts it often) and select the Hardware Menu (see example below)View attachment 121885

AN3 is the value for the Waste - see switching points - I haven’t done the full sweep (note the error flash is always flashing full regardless if it is open or short circuit)

View attachment 121884