Some Common Dishwasher Drying Problems And What You Do To Resolve

In this article, we’re going to talk about a common complaint of poor dishwasher drying results. Understanding how the drying process works is helpful in addressing one cause of this.

As part of the rinsing and drying at the end of a programme, the dishwasher heats up the items inside the machine including the cabinet, the carcass, glassware, ceramics and metallic objects. It is the trapped heat inside these items that dry them.

At the end of a cycle, the door should be left open slightly for a short period of time in order to let the steam out and allow the items to quickly cool down.

Opening the door at the end therefore finishes the drying process. If the door is left closed for a long period of time, the trapped heat inside the machine naturally cools down and condenses into water. This causes the items to become wet again.

Therefore, a cause of poor drying results could simply be due to the door not being opened at the end of a cycle.

To prevent this, avoid running a programme overnight or while you’re out of the house for long periods of time.

Some high end dishwashers may have a mechanism to automatically open the door at the end of a cycle although many require you to physically open the door.

Another common complaint is plastic items still being wet at the end of a cycle while other items are dry. Unfortunately, this is a natural part of the drying process as plastic does not trap heat in the same way as other materials. Therefore, although plastic items will be clean at the end of a cycle, they will always remain wet.

An alternative cause of poor drying results is a lack of rinse aid.

Rinse aid plays an important role in the drying process as it breaks up the surface tension in the water. Along with the trapped heat in the machine, rinse aid prevents water clinging to items and allows it to fall off in large sheets.

It is always recommended to use rinse aid as a separate component, rather than relying on a combined tablet.

To replenish the rinse aid in a dishwasher, follow the steps below.

Step 1

Open the dishwasher, lie the door flat and locate the dispenser on the back of the door.

Step 2

Open the rinse aid cap and pour the rinse aid into the compartment.

It is worth noting that once the rinse aid has been replenished, it is not all used in one wash and can last several weeks or months.

Step 3

Clean any excess rinse aid from around the outside of the compartment with a cloth.

Too much rinse aid inside the machine will cause an oversudding problem whereby too much foam is created.

Step 4

Ensure that the water hardness setting is correct on the machine as this will determine how much rinse aid is dispensed.

Too much rinse aid will create excess foam and too little will create drying problems.

I hope that you have found this article helpful, however if you have followed the advice in this article and are still experiencing drying problems, you can book an engineer visit quickly and easily by following the Book A Repair button on our website.

Other guides you may be interested in...

Why Choose NAC?
Same & Next Day Repairs Icon Same & Next Day Repairs Icon

Same & Next Day Repairs

We aim to send an engineer on the same day of reporting the fault or the next day where possible.

All Repairs Guaranteed Icon All Repairs Guaranteed Icon

All Repairs Guaranteed

We believe in our skills and follow that up with a standard guarantee of our work to give you peace of mind.

No Hidden Charges Icon No Hidden Charges Icon

No Hidden Charges

We understand the importance of budgeting and make sure you are fully aware of all costs in advance.

Family Run Business Icon Family Run Business Icon

Family Run Business

Husband and Wife team Adrian & Amanda set the standards at NAC with over 40 years experience.