watchma oil gauge

[Graham]

just had tank filled up to three quarters. the watchman is only registering a flashing picture of a refilling pump

[Huge]

That's nice, dear.

(Wait.)

[alan_m]

Replace the battery in the sending unit on the tank.

[Davey]

Quite possibly. Mine failed just outside the warranty period, and rather than screw with a badly designed unit that ate batteries, I replaced it with an Apollo.