SIP Speedo fuel warning

[Stesjh]

After a bit of advice, have a new SIP speedo with fuel sensor, everything was working fine till the other day when the fuel warning came on. Checked fuel - nearly full, however, refuelled to the top. Now the Fuel warning comes on and off every few seconds. Has anyone else had this problem and got a solution please?

[Delboyli150]

Have you checked the fuel tap, drain petrol,take off tap, with a multi meter check contunity , move the black float in other direction, then should be opposite from before. If this works then problem up in headset.