Good commercial dishwashers are robust and produce outstanding results, but even the best commercial dishwasher needs regular care and maintenance to avoid blockages, work efficiently and reduce breakdowns. So what should you do to look after your commercial dishwasher and extend its life?

1. Follow The User Guide

As simple as it sounds! The Instruction Manual has lots of important and helpful information specific to the machine and using it will help keep it in the best condition.

2. Clean The Dishwasher Regularly

Give the dishwasher a good clean at least after each session (e.g. breakfast, lunch and evening meal), and remove the spray arms and run under running water at least once a day, to prevent blockages.

3. Clean The Dishwasher Thoroughly

Empty the machine first then take out the filter trays and wash under fresh running water – use a brush to clean the awkward nooks and crannies. If you see pink on the dishwasher this is food protein and needs to be cleaned.

4. Scrape And Rinse

Scrape and rinse items before putting in the dishwasher to avoid blockages and damage to the machine.

5. Do Not Pre-Soak Items In Washing Up Liquid

Washing up liquid going into the dishwasher will cause over foaming and damage the dishwasher’s drain pump.

6. Leave The Hood Open

If you have a Hood/Pass Through dishwasher, leave the hood up slightly when not in use to cool down and reduce bacteria build up.

7. Check Salt Levels and Descale

Regularly check and top up salt levels, and descale the dishwasher. This prevents damage to heating elements, motors, seals and the boiler.

8. Do Not Slam

Pushing trays in too firmly, slamming the hood down or pushing the door closed too harshly can damage the door locks, warp the door, break the tray wheels and cause internal damage.

9. Contact JTM Service

If there are any errors, do not continue to use it until you have reported it to your support company (e.g. JTM Service on 0113 2572221) who will advise if you can continue to use whilst waiting for an engineer to attend. If you continue to run when advised not to, you run the risk of damaging the machine further.

10. Planned Preventative Maintenance

Regular maintenance from your specialist commercial dishwasher support company ensures your machine stays in the best possible condition, reducing breakdowns and saving cost.

At JTM Service we have 40 years’ experience providing support to businesses including Care Homes, Hospitals, Housing, Education, Construction and FM, Animal Care, Sports & Leisure, Hotels and Hospitality. If you have found these 10 Tips useful, we have also created 10 Tips lists for your commercial washing machine and your commercial tumble dryer as well. Please see a link to a downloadable document for all three 10 Tips documents below, and if you would like more information or support on keeping your commercial dishwasher, commercial washing machine or commercial tumble dryer in the best possible condition, please get in touch at or call 0113 2572221.

Download a pdf showing the 10 Tips to Look After Your Commercial Dishwasher in a visual format.

Download a pdf showing the 10 Tips to Look After Your Commercial Washing Machine in a visual format.

Download a pdf showing the 10 Tips to Look After Your Commercial Tumble Dryer in a visual format.