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Error code reference

Thermador Range Error Code Er:19

WFR 2460 washer

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What the Er:19 error code actually means

Your Thermador appliance has detected a potential water leak and has shut itself down as a safety precaution. It tried to restart 15 times but kept sensing the same problem, so it stopped trying and displayed this error. You should check under and around the unit for any signs of water before trying to use it again.

Diagnostic procedure

The full Er:19 procedure

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1
First diagnostic step
Eliminate leaks.
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Most common causes of Er:19

Ranked by how often they cause this code
  1. 1Water accumulation in the base tray
  2. 2Leaking water inlet hose or connection
  3. 3Faulty Aqua Stop valve
  4. 4Defective float switch or leak sensor
  5. 5Failed water inlet valve

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Questions people ask about Er:19

What does Er:19 mean on a Thermador range?
Er:19 indicates an Aqua Stop fault on the WFR 2460 washer system. The Aqua Stop is a safety feature that detects water leaks and shuts down the appliance to prevent flooding. This code appears after 15 failed start-up attempts, meaning the appliance has been unable to clear the fault on its own. The first step is to inspect for any water leaks or accumulated water in the base tray.
Is it safe to use my Thermador appliance when Er:19 is displayed?
No, you should not attempt to operate the appliance while Er:19 is active. The Aqua Stop system has shut down water flow as a safety measure to prevent potential water damage. Continuing to force operation without identifying and correcting the leak source could result in flooding or further damage to the appliance.
How much does it cost to repair an Er:19 fault on a Thermador appliance?
Repair costs vary depending on the cause. If only the base tray needs to be dried and a hose connection tightened, the cost may be minimal. Replacing components such as the Aqua Stop valve assembly, inlet valve, or float switch typically costs between $150 and $450 including parts and labor, depending on part availability and local service rates.
Can I fix Er:19 on my Thermador appliance myself?
In some cases, yes. If the fault was caused by a minor leak or water splash that left water in the base tray, drying out the tray completely may allow the float switch to reset and clear the error. However, if an actual leak source exists, such as a cracked hose or failed valve, that component will need to be repaired or replaced, which may require a qualified technician.
Will resetting the appliance clear the Er:19 error code?
A simple power reset is unlikely to permanently clear Er:19 because the control has already cycled through 15 restart attempts before locking out. The underlying cause, whether it is standing water in the base tray, a leak, or a faulty component, must be addressed first. Once the root cause is resolved and the base tray is dry, the fault should clear on its own or after a reset.

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