When the dishwasher is not filling the water, the reason may be the float. A float is found on a bottom of a dishwasher tub or sometime it may be found at the bottom. It acts like a safety device which prevents the water to overfill. When the right level has been reached, it will trigger a float switch so that it may turn of water inlet. When the water refuses to fill up to the right level, you have to check if there are no foreign objects or debris that may be restricting the movement of a float and to engage the float before time. A door switch works like off or on mechanism and it can prohibit a dishwasher against operating when the door is still open. When the door switch is not working well, a dishwasher cannot fill well. To do the dishwasher repairs Finsbury, you need to check the mechanism of such door behind a door panel on a top of a door. In order to see where there is a problem, you have to separate inner door away of outer door so that you can remove wires in order to check the continuity using a multi-meter.
A float switch is found under a float and under a tub of the dishwasher. If a float switch had been triggered because of a float, power that goes to water inlet valve will be interrupted and it can stop its flow at once. Look into the mechanical action of a float and see if it works well and if the connection of the wire is completely secure. You can also check the continuity of the wire before you can try dishwasher repairs Finsbury. If you have tried all these things but they do not solve the problem, you should consider to call a repairman to do further testing.