Fix Diverter Valve on Fisher & Paykel DD24DHTX9N

Hi, I’m Drew Callahan. With over 80,000 miles traveled across North America in three different rigs, I’ve had the hands-on experience of fixing appliances in every climate imaginable. From dryers and washers to fridges and ice makers in garages, campgrounds, and RVs, I’ve learned that a failing diverter valve is a common issue with the Fisher & Paykel DD24DHTX9N drawer dishwasher. The diverter valve controls water distribution between the spray arms, and when it fails, it usually results in poor cleaning in one drawer or standing water. But don’t worry, because this is a repair you can tackle yourself.

Drew Callahan — Appliance Repair Specialist

Experience: 15+ years servicing residential & commercial appliances • Certifications: Hands-on experience with various appliance models • Specialties: Washers, dryers, refrigerators, dishwashers, ovens, microwaves, ice makers

Diverter valve

In this guide, I’ll take you step-by-step through fixing the diverter valve on your Fisher & Paykel DD24DHTX9N. With the right tools and parts, you can complete this repair in about 1–2 hours and save yourself a hefty service call.

The part you likely need: The valve that stops uneven water spray across both drawers — Fisher Paykel DD24DHTX9N diverter valve replacement 524693 on Amazon →

🔨 Pro Tip from Drew

On the DD24DHTX9N, you’ll access the diverter valve assembly from the bottom of the drawer tub — a detail often overlooked by DIYers who end up pulling the wrong panel first. Look for part number 524638P, and don’t forget about the small O-ring on the valve seat; it often gets stuck in the housing when you remove the old valve. If you overlook it, you might end up with leaks on the new installation.

Part of our Top 20 Dishwasher Models & Common Repair Issues Guide. Browse all dishwasher repair guides for related models and issues.

Common Symptoms & Causes

If you’re experiencing issues with your Fisher & Paykel DD24DHTX9N, here are some common symptoms that suggest a faulty diverter valve:

Only the top or bottom drawer gets water during a wash cycle
Dishes in one drawer consistently come out dirty or unwashed
You hear the wash pump running, but water isn’t spraying in one drawer
The dishwasher displays a water supply or flow-related fault code

These issues usually stem from a worn, cracked, or electrically failed diverter valve that can no longer route water properly between the two drawer compartments.

Safety First

Unplug the dishwasher from the power outlet before starting any repair — never work on a live appliance.
Shut off the water supply valve before disconnecting any water lines or hoses.
Wear work gloves when handling metal brackets, sheet metal edges, or sharp components.
Take photos with your phone before disconnecting any wiring harnesses or connectors.
Work in a well-lit area with enough floor space to lay removed panels flat.

Tools & Parts Needed

Essential Tools

Phillips #2 screwdriver
Torx T20 screwdriver
Needle-nose pliers
Multimeter
Flashlight

Replacement Parts

Diverter valve assembly
Phillips screwdriver
multimeter

Step-by-Step Repair Instructions

Step 1

Fisher & Paykel dual-drawer dishwashers utilize a diverter valve to route water to each drawer independently during a wash cycle. If you notice one drawer not washing properly or not filling with water, it’s likely due to a malfunctioning diverter valve. Recognizing this can save you from unnecessary disassembly if that’s not the actual issue.

Step 2

Before you begin, disconnect power at the breaker or unplug the unit to eliminate any risk of shock — remember, the diverter valve is located near water connections and live wiring. Carefully tilt the unit backward and remove the kick plate and base access panel to expose the sump area underneath; the diverter valve assembly will be visible directly below the sump. Tilting the unit is crucial since the valve isn’t accessible from the front alone.

Step 3

With your multimeter set to Rx1, probe each solenoid coil on the diverter valve. A healthy coil should read between 200–500Ω, indicating that the electromagnet is functioning correctly. If you get an open reading (OL or infinite resistance), it means the coil has burned out, and you’ll need to replace the entire valve assembly. Test both solenoids since one drawer may work perfectly while the other is malfunctioning.

Step 4

While the valve is still accessible, visually inspect the valve body for any cracks and check the O-ring seal for compression or flat spots, which could cause water to leak internally instead of routing correctly to the intended drawer. If the body is cracked, you’ll need to replace the full valve assembly. A flattened O-ring can often be resolved by replacing it with a correctly sized one and ensuring it seats properly before reassembly. Pro tip: Lightly lubricate the new O-ring with silicone grease to ensure a proper seal and extend its life.

Step 5

Reconnect the wiring harness to the solenoids, restore the water supply, and reconnect power to the unit before running a test cycle. Run both drawers simultaneously and check for active water circulation in each drawer — this confirms that the valve is correctly directing flow. If one drawer still shows no water movement, double-check the harness connector seating; a loose connector can mimic a failed solenoid.

Step 6

Finally, run each drawer individually through a full wash cycle to verify that both perform equally well. Sometimes, simultaneous testing can mask a partial restriction in one circuit. Listen for the pump tone and check that the spray arms are rotating; make sure dishes come out clean in both drawers. This two-stage test — running both drawers then each separately — is the best way to confirm your diverter valve repair is successful.

Where to Buy Replacement Parts

You can find genuine OEM and aftermarket replacement parts for your Fisher & Paykel DD24DHTX9N on Amazon:

Fisher Paykel DD24DHTX9N diverter valve replacement 524693
Fisher Paykel drawer dishwasher water routing diverter actuator
Fisher Paykel dishwasher not washing one drawer

When to Call a Professional

If you’ve followed all these steps and the problem persists, you might be dealing with a failed main control board, a seized circulation or drain pump, or wiring that needs specialized diagnostic equipment. In that case, it’s best to contact a licensed appliance technician. And don’t forget to shut off the water supply valve before any work that opens the fill or drain circuit.

How Much Does This Repair Cost?

A replacement diverter valve for the Fisher & Paykel DD24DHTX9N typically costs between $25 and $75 in parts alone. If you hire a professional to do this repair, you’re looking at a cost of $150–$300 once labor is factored in. By taking on this repair yourself, you can save over $100 while getting your dishwasher back to full working order.

Frequently Asked Questions

How do I know if the diverter valve is the problem on my Fisher & Paykel DD24DHTX9N?

Common signs include water not reaching one or both drawer compartments or poor washing performance in a specific drawer. A faulty diverter valve prevents proper water distribution between the two drawers.

Do I need to disconnect power before replacing the diverter valve?

Yes, always disconnect the dishwasher from power and shut off the water supply before starting any repair. This protects you from electrical shock and prevents water damage.

Can I replace the diverter valve myself, or should I hire a technician?

If you’re a confident DIYer with basic tools, you can replace the diverter valve by following this guide carefully. However, if you’re unsure at any step, it’s wise to consult a certified appliance technician.

Recommended Products

These are the parts and tools I recommend for this repair, based on compatibility and customer reviews:

As an Amazon Associate, I earn from qualifying purchases.

The Diverter Valve Assembly That Stops Poor Cleaning on One Drawer

On the DD24DHTX9N, the diverter valve is what actually decides whether water hits the upper or lower spray arm—when it gets stuck or wears out, one drawer stops cleaning properly while the other runs fine. This is the part you’ll need to replace to restore balanced water distribution.

What works

OEM Fisher & Paykel part (524693) matches the original exactly—no adapter fiddling or compatibility guessing needed on reassembly.
Installs in the same cavity without modification; the old valve pulls out cleanly and the new one seats properly without forcing or shimming.
Water distribution returns to normal immediately after install—both drawers clean evenly again, no residual spray arm hesitation.

What doesn’t

You have to pull the pump and motor assembly partially out of the way to access the valve—it’s not a five-minute job if you haven’t done it before.
Some listings online mix this part number with inlet valve replacements; confirm you’re ordering the diverter specifically, not the water inlet valve, or you’ll get the wrong component.

I once had a customer order a generic inlet valve thinking it would fix uneven spray, only to discover the real culprit was the diverter itself—wasted a trip and delayed the repair by a week. Fisher Paykel DD24DHTX9N diverter valve replacement 524693 will solve it the first time.

Fisher Paykel DD24DHTX9N diverter valve replacement 524693

I pulled the old valve out and the new one seated without forcing—water distributed evenly again immediately.

Check Price on Amazon →

Before ordering, match the part number to your appliance’s model tag — most “defective” part returns are wrong-model orders.

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