Trouble Where the Dishwasher Soap Won't Dispense

Detergent Dispenser

• The soap dispenser should be kept clean in order to operate properly. For example, the cup should be dry before detergent is added. In addition, any residue from food, rinse aid or detergent should be wiped up, as sticky material may prevent the dispenser from unlatching correctly.

Dishwasher Detergent

• Along with keeping the detergent dispenser clean, the proper type of detergent should be used. If the soap is old, damp or clumps, then it will most likely stick inside the dispenser and will not dissolve properly. Discard detergent that is several months old, and keep detergent in a cool, dry spot where moisture, light or heat will not affect the soap.

Water Pressure and Temperature

• The water that enters the dishwasher must be forceful and warm enough to dissolve the detergent for the wash cycle. If the water is below 120 degrees Fahrenheit or below 20 psi in terms of water pressure, it is likely to leave soap in the dispenser. Check the household water supply temperature and pressure, and either make changes as needed or contact a plumber for assistance. The water temperature can be checked with a food thermometer and adjusted at the hot water heater, while a water pressure gauge can be attached to almost any household faucet to measure water pressure. You will need to call a plumber if the pressure is too low.

Dishwasher Loading

• The way the dishwasher is loaded can prevent the dispenser from opening correctly, which will leave soap inside after the wash cycle. Check the racks for items that may be positioned in front of the soap cup and might block it from unlatching, and move things around as needed.

Repair

• While unlikely, it is possible that the detergent cup switch may be damaged or broken. If this is the case, then the detergent cup will not operate automatically during the cycle, and troubleshooting efforts will not to solve the situation. Contact a service center for assistance if the dispenser seems to need repair.