Why is there no water in cistern? - Lanier UNKNOWN

normally the cistern is mounted to the wall and the pipe to the bowl (pan) is just connected by a rubber grommet at the pan inlet and a threaded nut that compresses a rubber ring in the cistern end
water supply is via a hose from the isolator tap next to the an up to the pipe under the cistern

Pump probably needs to be serviced. It probably pressurizes a tank and when that tank reaches a pressure the pump is turned off. But just guessing.

The float valve needs adjusted or replaced.

sounds as though there may be a trickle of water going in to the pan from the cistern. To check you could turn OFF the water to the cistern, or tie the float arm up. then flsu the water in the cistern so that no more water will trickle in to the loo. Leave it a goodly time, several hours say, and monitor if it still runs for a few mins every hour. Actually running for two/three mins is rather a long time but first i would think you need to eliminate the possibility of the above steady trickle from the cistern.

replace the whole control unit
There may be 2 problems
the small washer that shuts off the water flow when the level is reached may be swollen and not sealing properly
the section at the bottom has cracked at a thread level
so by replacing the unit you will eliminate both problems
to remove the unit, turn off the water tap, flush the system, holding the button down until all of the water has gone
remove the inlet pipe at the bottom of the cistern
undo the retaining nut under the cistern and lift the control unit out
there will be water in the bottom of the cistern so use old towels on the floor to soak up the water that will run out

If the valves cannot be controlled then it is either an open or close type. Try controlling with the valve on the outside.

That is the cistern overflow running.You need to adjust the fill level in the cistern by adjusting the plastic screw on the ballfloat or adjust the height of the float if its the silent fill tpe

sounds like you either have a leak or the water is returning into the cistern thus filling the lines with air and you getting a blast of air and water. I don't know much about them but logic tells me there should be some type of valve that keeps the water from back flowing into the cistern.

Firstly open the top of the Cistern(Where water is held)There are two most common Cistern internals ie;Ball-O-Stop(Ball on a arm connecting to valve). This one is easy, you just bend the arm downwards in the centre so that the ball shuts the valve at a lower level; The other type has a shaft(plastic) with a thread on it, connecting it to a "small bowl" that lifts up as water enters the cistern. To adjust the water level in cistern you have to turn the thread(Shaft) lowering the "small bowl" wich will shut the inlet to the cistern at a lower level. Hope this helps