Disassemble the Air Gap — Remove the Old Air Gap Body (Replacement)
Part of project
How to Clean or Replace a Dishwasher Air Gap · Step 6 of 9
In this video
To access the drain lines, you must first disassemble the air gap. Start by pulling the outer decorative cover straight up to remove it. Underneath, you will find a plastic inner cap. Squeeze the two small prongs or tabs on the sides of this cap and pull it upwards to remove it, exposing the two drain tubes inside the air gap assembly.
Goal: Access the air gap drain tubes
- Don't be alarmed if the inside of the air gap is dirty; it has likely never been cleaned before.
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FAQs
How can I tell if my dishwasher drainage problem is definitely caused by a clogged air gap?
Look for standing water in the bottom of your dishwasher, slow draining, or water backing up into your sink when the dishwasher attempts to drain. A visual check of the air gap cap for visible debris or a gurgling sound during the drain cycle can also indicate a clog. Sometimes, water might even spray from the air gap cap.
What are the most important safety precautions I should take before starting this project?
Always turn off the power to your dishwasher at the circuit breaker and shut off the hot water supply valve located under the sink before beginning any work. Have towels ready to absorb any spilled water, and consider wearing gloves to protect your hands from grime and potential sharp edges. Never work with electrical components or water without cutting power first.
The project lists several tools; which are absolutely essential if I'm on a tight budget or a beginner?
For cleaning, you'll primarily need a Phillips head screwdriver to remove the air gap cap and a small brush or pipe cleaner for clearing debris. If replacing, you'll also definitely need soft-jaw pliers for hose clamps, a bucket for catching water, and the new air gap unit itself. Many items like the UV flashlight or specific brand towels are optional comforts rather than strict necessities.
When should I attempt to clean the air gap versus opting for a full replacement?
Start with cleaning if you suspect a blockage from food debris, grease, or mineral buildup within the existing unit. If cleaning doesn't resolve the drainage issue, or if the air gap body itself is cracked, leaking, severely corroded, or damaged beyond repair, then replacement is the necessary next step. A damaged body won't hold a seal even after cleaning.
Disassemble the Air Gap — Remove the Old Air Gap Body (Replacement)
Part of project
How to Clean or Replace a Dishwasher Air Gap · Step 6 of 9
In this video
To access the drain lines, you must first disassemble the air gap. Start by pulling the outer decorative cover straight up to remove it. Underneath, you will find a plastic inner cap. Squeeze the two small prongs or tabs on the sides of this cap and pull it upwards to remove it, exposing the two drain tubes inside the air gap assembly.
Goal: Access the air gap drain tubes
- Don't be alarmed if the inside of the air gap is dirty; it has likely never been cleaned before.
Frequently Asked Questions
How can I tell if my dishwasher drainage problem is definitely caused by a clogged air gap?
Look for standing water in the bottom of your dishwasher, slow draining, or water backing up into your sink when the dishwasher attempts to drain. A visual check of the air gap cap for visible debris or a gurgling sound during the drain cycle can also indicate a clog. Sometimes, water might even spray from the air gap cap.
What are the most important safety precautions I should take before starting this project?
Always turn off the power to your dishwasher at the circuit breaker and shut off the hot water supply valve located under the sink before beginning any work. Have towels ready to absorb any spilled water, and consider wearing gloves to protect your hands from grime and potential sharp edges. Never work with electrical components or water without cutting power first.
The project lists several tools; which are absolutely essential if I'm on a tight budget or a beginner?
For cleaning, you'll primarily need a Phillips head screwdriver to remove the air gap cap and a small brush or pipe cleaner for clearing debris. If replacing, you'll also definitely need soft-jaw pliers for hose clamps, a bucket for catching water, and the new air gap unit itself. Many items like the UV flashlight or specific brand towels are optional comforts rather than strict necessities.
When should I attempt to clean the air gap versus opting for a full replacement?
Start with cleaning if you suspect a blockage from food debris, grease, or mineral buildup within the existing unit. If cleaning doesn't resolve the drainage issue, or if the air gap body itself is cracked, leaking, severely corroded, or damaged beyond repair, then replacement is the necessary next step. A damaged body won't hold a seal even after cleaning.