Bosch Dishwasher rinse aid leaking

Common reasons your Bosch Dishwasher rinse aid leaking

The most common reasons your Bosch dishwasher has rinse aid leaking include a damaged rinse aid dispenser, defective PCB (printed circuit board) or a bad wire connector.

54% of the time it's the
Detergent Dispenser

33% of the time it's the
PCB

7% of the time it's the
Wire Connector

6% of the time it's the
Something else

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James called to give an estimated arrival time. He was professional and personable. He had 2 professional ideas of the problem and found 1 was correct, but he didn't stop there. He did a thorough check of the appliance. 1 small part was needed. He ordered the part to my house. Fortunately, he was able to schedule for the next week, just before Thanksgiving. As before, he called ahead, arrived and quickly fixed the problem. My appliance is working perfectly.

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Luke was great. Polite and knowledgeable even though the dishwasher was older than he!

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Daniel went above and beyond to fix my dish washer. Very pleasant to deal with.

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Most common repairs needed to fix a Bosch dishwasher

Detergent Dispenser Replacement

The detergent dispenser releases detergent and rinse aid at the proper times during the dishwashing cycle. When the cap for the rinse aid dispenser is worn or damaged, it won’t close properly and rinse aid will leak out of the dispenser and onto the dishwasher door. A worn or damaged gasket on the rinse aid cap will also allow rinse aid to leak out of the dispenser. Check the detergent dispenser for damage. Replace the dishwasher detergent dispenser if you find a damaged rinse aid cap or rinse aid gasket. Have a service technician replace the detergent dispenser if you’re unable to replace that part yourself.

How to replace a dishwasher detergent dispenser

PCB Replacement

The PCB is the electronic control board that controls dishwasher operations such as filling, washing, rinsing, detergent/rinse aid dispensing, draining and drying. When your Bosch dishwasher has rinse aid leaking, the PCB may be sending electric current to the detergent dispenser to dispense rinse aid constantly, randomly or at the wrong time in the cycle. When you see rinse aid dispensing out of the detergent dispenser and onto the door of the dishwasher, schedule dishwasher repair service and we’ll send a Sears Home Services technician to your home to fix the problem.

How to replace a dishwasher electronic control board video

Wire Connector Replacement

Wiring connectors in the detergent dispenser circuit could be at fault for Bosch dishwasher rinse aid leaking. A shorted or damaged wiring connector could allow current to flow to the detergent dispenser rinse aid actuator at the wrong time so rinse aid would leak onto the dishwasher door. A technician will need to check the wiring connectors in the detergent dispenser circuit to find and correct this type of problem. When you see rinse aid leaking from the detergent dispenser in your Bosch dishwasher, schedule dishwasher repair service to have a Sears Home Services technician visit your home and find the cause of the problem.

How to use a multimeter to test electrical parts video

What to expect when you experience a Bosch dishwasher with rinse aid leaking

How do you troubleshoot a Bosch dishwasher with rinse aid leaking?

Fixing most issues causing your Bosch dishwasher to leak rinse aid usually involves replacing the detergent dispenser, PCB or a wiring connector. Sometimes, you may be able to see damage to the detergent dispenser or the gaskets and seals in that component. In that situation, it’s almost certain that you’ll need to have a technician replace the detergent dispenser. Even if you find no problems with the detergent dispenser, control problems or wiring issues can also cause the detergent dispenser to leak rinse aid. Having a service technician examine the dishwasher and fix the problem is the best approach when rinse aid leaks down onto the dishwasher door.

How to prevent your Bosch dishwasher from leaking rinse aid?

Cleaning and maintaining the detergent dispenser regularly will help keep it from leaking rinse aid. Follow the instructions in the owner’s manual for your Bosch dishwasher to maintain the detergent dispenser. Wipe deposits off the detergent dispenser gaskets regularly. Replace the dishwasher detergent dispenser if you find damage or worn gaskets. Have your dishwasher professionally maintained by a service technician every year to keep the detergent dispenser and entire dishwasher in top shape. During annual professional maintenance service, the technician will check and maintain dispenser operation as well as PCB operation. Wiring will also be checked. Keeping your dishwasher well-maintained will help keep the detergent dispenser from leaking rinse aid.

What to expect when having a Bosch dishwasher leaking detergent dispenser fixed

When your Bosch dishwasher is leaking rinse aid, expect the technician to carefully examine the detergent dispenser and replace that component if it’s damaged and leaking. If the tech finds no apparent problems with the detergent dispenser, the wiring and PCB will be checked and tested to find the cause of the rinse aid leak. Our experienced technicians at Sears Home Services will be able to quickly find and fix the cause of the detergent dispenser leaking rinse aid.

Repair Dishwasher Resources

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Glossary Terms

What is Hard Water?

Hard water is water that contains high levels of dissolved minerals, particularly calcium and magnesium. It contrasts with soft water, which has lower concentrations of these minerals.

What is Wattage?

Wattage is the measure of electrical power expressed in watts (W), indicating the rate at which a device consumes energy.

What is Refrigerant?

Refrigerant is a chemical compound used in HVAC systems and refrigerators to absorb heat from the environment by cycling through states of evaporation and condensation, enabling the cooling process through its cycle of evaporation and condensation.

What is R-12 Refrigerant?

R-12 refrigerant, also known as Freon-12, is a chlorofluorocarbon (CFC) compound that was once widely used in air conditioning systems, refrigerators, and aerosol propellants before its phase-out due to environmental concerns.