If your oven is working but is constantly making a noise, you should check to see if food is stuck between the turntables. If nothing is stuck, there can be a defective diode, capacitor or a magnetron behind the noise. The problem can also be with the fan blades or the rotation of the turntable. Some of these can be fixed. But for high voltage capacitors or magnetron, you should be careful and should get the oven replaced.
Doesn’t work after pressing ‘start’
This can be due to the electrical supply, or defective power cords or cables. If the electrical supply is not consistent, the temperature inside the oven can fluctuate. If the problem lies in the power cords, they should be replaced for proper cooking. Sometimes, there might be no power supply at all, and the oven might not start. Check the socket again and replace it if required.
Problems with door, touchpad or light
Heavily used commercial ovens are more prone to common problems with touchpad – as people tend to work pretty fast with them. Sometimes the touchpad may not function, the door might not close properly, leaking warm air, or there might be no light even when the oven is turned on. These are not major problems, and can be easily fixed by calling the concerned person.
Taking Care of Commercial Dishwashers
It is always recommended to use water softener if you have hard water. Use fresh and non-clustering detergent for washing your dishes. Commercial dishwasher manufacturers advise a water pressure between the range of 20 and 120 psi. Keep a water-pressure gauge handy to test the water pressure in your place. If your dishes and glassware are not clean enough, use rinse aid and increase your water heater temperature in your dishwasher to a minimum of 50 degrees Celsius.
This should take care of the spots and the dirt. Avoid blocking the spray arm. Always use a water filter if the water you use in your dishwashing equipment has a high mineral content.