My machine is foaming. What should I do?

Follow this step-by-step guide to resolve any problems with machine foaming:

1. Has any domestic washing up liquid been introduced into the machine?
2. Check both rinse and wash tank temperatures are correct
3. Do you pre wash dishes in domestic washing up liquid? Cutlery should be washed in water only
4. Has the machine been cleaned using domestic washing up liquid?
5. If your machine is fitted with a water softener, check it is working correctly
6. Check detergents are set correctly for site conditions