Bosch – No drainage of water

Hello,

Here at work we have a pair of Bosch S9G1B dishwashers. One of the dishwashers has recently started to play up, in that it will no longer drain out any water.

This appeared to happen mid cycle, as the unit started to cycle dirty water around for the whole cycle, not draining out as it normally would.

I am wondering if it could be something as simple as a failed drain pump, or if there is a level or pressure sensor that could be playing up.

My other question is what sort of price would we expect to pay a professional to repair the unit? Normally, if it were a home appliance, I’d undertake the repair myself, but, with it being in the workplace, I’d rather someone else took it on for insurance purposes!!.

Many thanks in advance,

James