A dishwasher in a commercial kitchen is supposed to operate so well that there is no chance it can break down. A dishwasher plays a huge role in the operations of a busy commercial kitchen. It breaking down would cause you more problems than you can manage. You have no choice than to call in the repair services the fastest you can. It is possible they can fix it in time, or they may suggest you get another one. The latter option may not make much sense, since you cannot be sure it will not wind up where the current one is. You therefore need to understand how to spot a machine that has long lasting parts in it.
The first thing to do is stay away from those that have plastic parts in them. You may hear claims of long operation hours, but plastic will not withstand hat a commercial kitchen dishwasher has to go through. They shall not live through the many cycles of high temperatures that the dishwashers normally operate at. Those are machines that do well at home, not the restaurant.
The choice material for the parts is stainless steel. With such a machine, you can be sure its parts will not break down as a result of all that heat. You also benefit from its resistance to the buildup for limescale. If it manages to, getting rid of it by use of chemicals is not a tough process.
IT is important to note the region from which the machine originates. You need one that was built by the best in the business. Acquiring high-quality stainless steel should not be a problem for them. This is how you know they shall be making high-quality parts and a fine assembly job, all at best possible price. A simple way to go about it would be to look at the most famous brands in the market known for their stainless steel components. You will also find some other brands not as famous, but who use stainless steel nonetheless. You can find out more about them and see if they have something that is right for you.
You also need to see what kind of warranties the manufacturer offers on their machine and the parts. The longer the warranty period, the more comfortable you shall be with that purchase. You thus need to find one that has great and long warranties. It should also not be that hard reaching them when a problem arises. If getting in touch with them is already trouble, you cannot be sure they shall attend to an emergency as soon as you would want them to. If an emergency arises, your business will be left to suffer.