Thermador Dishwasher E24 Error Code: Drain Fault

Quick Answer

E24 on a Thermador dishwasher means the machine could not drain completely. The most common cause is a clogged triple filter - the coarse strainer, flat filter, and fine filter cylinder all need to be removed and cleaned under running water. After the filter, check for a kinked or improperly routed drain hose (maximum 20 inches above the floor). If filter cleaning does not resolve E24, test the drain pump motor with a multimeter - a healthy pump reads 200-250 ohms between the motor terminals. An open circuit (OL) means the pump motor has failed and needs replacement. The OEM drain pump part number is 00631200.

ThermadorDishwasherSeverity: moderate85% DIY Success

Time to Fix

10–60 min

Difficulty

beginner

Parts Cost

$45 – $80

Tools Needed

Multimeter (for drain pump motor test), Towels to remove standing water

Wrong code?

Not seeing E24 on your display?

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water not draining

BoschE24

What Does the E24 Code Mean?

Water is not draining out of the tub. Start with the triple filter - it fixes E24 in the majority of cases. If the filter is clean, check drain hose routing and the drain pump.

Most Likely Causes

Based on aggregated repair data, here is the probability breakdown for this error code:

Clogged triple filter (coarse strainer, flat filter, fine filter cylinder)40%

Kinked or improperly routed drain hose24%

Drain hose outlet too high - over 20 inches above the floor14%

Failed drain pump motor12%

Blocked drain pump impeller10%

Symptoms You May Notice

E24 displayed on control panel
Standing water visible at the bottom of the tub
Machine stops mid-cycle at the drain phase
Cycle completes but dishes are wet and water remains

Can you reset a Thermador dishwasher to clear the E24 code?

After clearing the filter or fixing the drain path, press and hold Start/Stop for 3-5 seconds. Alternatively, unplug for 60 seconds and restart. Run a short rinse cycle to confirm the drain fault is resolved.

Tools Required for Diagnosis

Multimeter (for drain pump motor test)Towels to remove standing waterSmall brush for filter cleaning

Diagnostic Checklist

Follow these steps in order. We start with the easiest external fixes before opening up the machine.

Remove standing water from the tub with a towel or cup

Remove standing water from the tub with a towel or cup. Then remove the lower spray arm, the coarse strainer (twist counterclockwise), the flat mesh filter, and the fine filter cylinder. Clean all three components thoroughly under running water.

Trace the drain hose from the dishwasher to the sink drain or

With the machine unplugged

Test the drain pump motor with a multimeter set to resistance (ohms)

Replacement Parts

If your diagnostic testing proves the component has failed, you will need a replacement. We recommend OEM parts over aftermarket for water-handling components.

Part Name	OEM Number	Estimated Price
Drain pump00631200 · $45–$80	00631200	$45 – $80

Verify part fitment for your Thermador model

Repair vs. Replace Calculator

Appliance Age (Years)7 Yrs

Labor Approach

Our Verdict

REPAIR

Estimated Cost: $63 (Parts) vs $1800 (New Machine)

Frequently Asked Questions

How do I remove and clean the triple filter on a Thermador dishwasher?

Remove the lower rack. Twist the coarse strainer counterclockwise and lift it out. Pull up the flat mesh filter beneath it. Then unscrew and remove the fine filter cylinder. Rinse all three under warm running water. Use a soft brush to remove stuck-on food. Reinstall in reverse order.

My filter is clean but E24 keeps coming back. What else should I check?

With a clean filter, the next likely culprits are the drain hose (check for kinks and confirm it does not rise more than 20 inches above the floor) and the drain pump impeller (may be jammed by a bone fragment or glass shard). If the impeller spins freely, test the pump motor with a multimeter - it should read 200-250 ohms.

What does E24 mean versus E25?

Both are drain-related, but E24 is a broader drain failure (water did not leave the tub in time) while E25 specifically points to the drain pump impeller being physically blocked by debris. The first fix for both codes is cleaning the triple filter.

How high can the Thermador dishwasher drain hose be?

The drain hose outlet should be no higher than 20 inches above the floor. If it is too high, the drain pump cannot overcome the static head pressure and E24 will trigger at the end of every drain cycle.

Related Thermador Dishwasher Error Codes

Code: HUBThermador Dishwasher Error Codes: Complete List for DWHD and Sapphire Series Code: E22Thermador Dishwasher E22 Error Code: Filter Blocked Code: E25Thermador Dishwasher E25 Error Code: Drain Pump Blocked Code: RESETHow to Reset a Thermador Dishwasher and Clear Error Codes

Same Fix on Other Brands

Bosch dishwasherE24: Bosch Dishwasher E24 Error Code

Same Fix Works on These Brands

Thermador shares the same hardware platform with these brands. The diagnosis and repair steps are identical.

Bosch dishwasherBosch Dishwasher E15: Fix the Anti-Flood Alert Fast Bosch dishwasherBosch Dishwasher Error Codes: Complete List + Fixes Bosch dishwasherHow to Reset a Bosch Dishwasher (Every Method)Bosch dishwasherBosch E24 Error: Drain Problem Solved Step by Step Bosch dishwasherBosch E25 Code: Drain Pump Fix Without a Technician Bosch dishwasherBosch Dishwasher Not Draining: Every Cause Covered

Models Known to Experience E24 Errors

This repair applies to most Thermador dishwashers with this error code. Common model numbers include:

DWHD440MFP, DWHD640JFP, DWHD640ZFP, DWHD660ZFP, DWHD771WFP

Last verified for technical accuracy on March 14, 2026