Dishwasher Not Drying? Causes, Checks & Fixes

Switch off, unplug and close the water supply before dismantling the appliance

Dishwashers combine mains electricity, hot water and hidden pumps. Stop using the machine if it leaks, trips the electrics, smells burnt or contains sharp broken glass.

MOST LIKELY CAUSES

Start with these

Rinse aid low or absent Water does not sheet off surfaces effectively.

Programme uses limited heat Eco and quick cycles may dry less aggressively.

Heater fault The final rinse may not become hot enough.

Fan or vent fault Moist air remains trapped in the cabinet.

◫ Symptom variations Match the exact point in the wash cycle. ⌄

Dishes remain wet
Plastic items are wetter than glass
Cabinet is cool after cycle
No steam at end
Drying fan is silent

✓ Quick checks Simple checks before removing panels. ⌄

Note the exact cycle stage when the fault appears.
Record any error code before switching off.
Check filters, spray arms, hoses and visible water connections.
Confirm the appliance is level and correctly loaded.
Unplug before touching filters, hoses or internal parts.

If the cause is external: correct the hose, filter, loading or supply fault and test carefully.

If electrical, pump or internal leaks are suspected: stop and call an appliance engineer.

1 Step 1 — Check rinse aid and settings Switch off and unplug before removing filters, hoses or panels. ⌄

Process

Refill and adjust according to the manufacturer.

Success looks like: Drying improves.

Escalate when: Persistent cold dishes suggest a heating fault.

2 Step 2 — Use a full drying programme Switch off and unplug before removing filters, hoses or panels. ⌄

Process

Avoid judging performance from rinse-only or short cycles.

Success looks like: The machine completes the intended dry phase.

Escalate when: If still wet, check heat and ventilation.

3 Step 3 — Unload correctly Switch off and unplug before removing filters, hoses or panels. ⌄

Process

Open the door after the safe delay and unload lower rack first.

Success looks like: Water from upper items does not drip below.

Escalate when: This will not fix a genuine heater or fan fault.

⌁ Common causes explained Why dishwasher faults develop. ⌄

Poor drying may be caused by low rinse aid, unsuitable programme choice, a failed heater, blocked vent, fan fault or plastic items that retain water.

The stage of the cycle is the main clue. Fill faults happen at the start, circulation faults during washing, heater faults once the wash is underway, and pump faults during draining.

⌘ Advanced diagnostics Appliance-engineer checks and repair work. ⌄

Test final-rinse temperature.
Check heater or heat-pump operation.
Inspect drying fan and vent flap.
Check door-opening mechanism where fitted.
Verify control-board dry-cycle command.

▣ Parts that may need replacing Common components linked to this fault. ⌄

Rinse-aid dispenser
Heating element
Heat pump
Drying fan
Vent flap

! When to call an appliance engineer Conditions that should end basic troubleshooting. ⌄

The dishwasher trips the electrics.
Water leaks from inside the cabinet.
The circulation or drain pump is grinding or seized.
Internal electrical testing is required.
The appliance must be dismantled to reach the fault.
The same fault returns after basic checks.

? Frequently asked questions Common dishwasher questions. ⌄

Why is there a small amount of water below the filter?

A small amount can be normal on some models. Standing dirty water above the filter usually indicates a drainage fault.

Why are plastics still wet after the cycle?

Plastic retains less heat than glass or ceramic, so some moisture is normal even when the drying system works.

Should I keep resetting the electrics if the dishwasher trips?

No. Unplug it and arrange electrical fault testing.