619-928-5000 
Request Service 
A dishwasher is designed to make our lives easier, saving time and effort. But what happens when a small yet crucial component stops working properly—like the detergent tablet compartment door? If your dishwasher completes the cycle and you find the tablet still sitting inside the dispenser, it’s a sign of a problem. Let’s break down the common causes and solutions for a dishwasher that doesn’t open the tablet compartment.
1. Compartment Door Mechanism Failure
The detergent compartment in a dishwasher has a spring-loaded latch or an electronic release mechanism that opens at a specific point during the wash cycle. If the compartment door fails to open, your dishes won’t be cleaned properly.
What causes this?
- Mechanical failure: The spring mechanism may be broken or jammed.
- Electrical issue: In models with electronic releases, a faulty control board or wiring may prevent the signal from being sent.
- Dirt and buildup: Detergent residue or hard water buildup can clog the latch or hinder its movement.
How to fix it:
- Clean the compartment thoroughly to remove any sticky residue or debris.
- Check if the spring still provides resistance. If it doesn’t, it might need replacement.
- If you suspect an electrical failure, it’s best to consult a technician.
2. Tablet Gets Wet Before Release
Another possible reason the tablet isn’t dispensed correctly is that it becomes wet before the compartment opens. This causes it to stick inside the dispenser, rendering it ineffective.
What causes this?
- Steam from previous cycles or drying processes may linger and affect the dispenser.
- Water leakage from a spray arm or faulty door seal could cause premature dampness.
How to fix it:
- Always ensure the dishwasher is completely dry before placing a new tablet. Leave the door ajar for a while after unloading.
- Check the door seal and nearby spray arms for leaks or improper spray patterns.
- Avoid placing the tablet too early; instead, close the door shortly after loading.
3. Incorrect Dish Loading
Improperly loaded dishes can physically block the compartment door from opening. It’s a surprisingly common issue and easily preventable.
What causes this?
- Tall items like cutting boards, trays, or large plates placed directly in front of the dispenser door.
- Utensils or racks misaligned in such a way that the door can’t open fully.
How to fix it:
- Always leave the area around the detergent compartment clear when loading.
- Place taller items on the sides of the bottom rack.
- Ensure that nothing is hanging over or blocking the compartment.
4. Using the Wrong Type of Detergent
While many dishwashers are designed to work with tablets, some models function better with powder or gel detergents. Using tablets in an incompatible model can affect how they’re dispensed.
What causes this?
- Tablets that are too large or slow to dissolve in cooler water cycles.
- The tablet format not matching the dispenser’s design.
How to fix it:
- Consult your user manual to confirm detergent compatibility.
- If the issue persists with tablets, try switching to powder or gel.
5. Check Dishwasher Settings
Some eco modes or short wash cycles use lower water temperatures and pressures, which might not be enough to trigger the tablet release or dissolve it completely.
What causes this?
- Tablet not dissolving due to low temperature.
- Tablet remaining trapped due to shortened cycle mechanics.
How to fix it:
- Use a normal or intensive cycle for tablet use.
- Avoid combining eco-mode with tablet detergents unless your dishwasher specifically supports it.
When to Call a Professional
If you’ve tried all the above and the issue persists, it may be time for a professional diagnosis. Problems like faulty circuit boards, damaged latches, or internal electrical faults should only be handled by a trained technician.
Restore your dishwasher’s full functionality today
Don’t let a stuck tablet ruin your dishwashing routine. If you’re tired of half-clean dishes and manual rewashing, call HOME APPLIANCE SERVICE CENTER. Our expert technicians will inspect, repair, and restore your dishwasher quickly and efficiently.
Call us now to schedule a service!
Contact us
(619) 928-5000