Dishwasher detergent tablet remains partially or completely undissolved in the dispenser at the end of the cycle.

Safety first: Switch off power before removing spray arms or working on the door.

• Check loading: Ensure large plates or trays are not blocking the detergent dispenser door from opening.
• Test dispenser door: Manually open and close the dispenser to confirm smooth operation. Clean any detergent buildup.
• Spray arm direction: Verify that the upper spray arm jets are not clogged and can direct water toward the dispenser area.
• Water temperature: Make sure the hot water supply is adequate and that the heater is functioning; cold water can slow tablet dissolution.
• Consider powder or gel: If the issue persists, try using powder or gel detergent to confirm whether the dispenser timing or water distribution is at fault.