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Error code reference

Thermador Range Error Code Er:15

WFR 2460 washer

Thermador codesThermador range codes

WFR 2460 washer: Pumping time exceeded (0 level not reached within 6 min).

First step from the service manual

Check pump circuit.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What Er:15 means on a Thermador range

Er:15 on a Thermador range equipped with the WFR 2460 washer system indicates that the pump cycle exceeded its maximum allowable time of 6 minutes without reaching the 0 (empty) water level. This is a drain-related fault. The control monitors how long the pump runs during a drain cycle, and if the water level sensor does not confirm that the tub or basin has been emptied within the 6-minute window, the control board halts operation and triggers this error to prevent motor burnout or flooding.

The pump circuit is the first area to inspect. This includes the drain pump motor itself, the wiring harness connecting the pump to the control board, and any connectors or terminals along that circuit path. A pump that is receiving power but mechanically seized or worn will run continuously without moving water effectively, triggering the timeout. Conversely, a pump that is not receiving proper voltage due to a wiring fault or failed relay on the control board will also fail to drain the system within the allotted time.

A blocked or kinked drain hose, a clogged pump filter or impeller, or a failed water level sensor can each contribute to this condition. If the pump is functional but the drain path is obstructed, water cannot exit regardless of pump operation. Similarly, if the pressure sensor or water level sensor is faulty, it may never signal the control board that the 0 level has been reached, even after a successful drain, causing a false Er:15 fault.

Source: manufacturer service documentation.

Common causes of Er:15

  1. 01

    Clogged pump filter or impeller

    Wiring / connection

    Debris blocking the pump filter or impeller restricts water flow, causing the pump to run without draining effectively. Inspect and clean the filter and impeller housing for lint, foreign objects, or buildup.

  2. 02

    Blocked or kinked drain hose

    Wiring / connection

    A kinked, pinched, or clogged drain hose prevents water from exiting the system. Inspect the full length of the hose for obstructions, tight bends, or improper routing.

  3. 03

    Failed drain pump motor

    Part replacement

    A pump motor that is seized, worn, or burned out will not move water even if it receives power. Check for continuity and proper voltage at the pump terminals, and listen for unusual noise or no motor activity during drain cycles.

  4. 04

    Wiring or connector fault in the pump circuit

    Wiring / connection

    Damaged wiring, corroded terminals, or a loose connector between the control board and the pump can interrupt power delivery to the pump. Visually inspect the harness and check for continuity along the pump circuit.

  5. 05

    Faulty water level sensor

    Part replacement

    If the pressure switch or water level sensor is defective, it may not register that the basin has reached the 0 level even after a successful drain, causing the control to log a false timeout fault.

See the test procedure for each cause

Frequently asked questions about Er:15

What does Er:15 mean on a Thermador range?
Er:15 indicates that the WFR 2460 washer system's drain pump ran for more than 6 minutes without the water level reaching the empty (0) position. The control board stops the cycle and displays this code to protect the system. It points to a fault in the pump circuit, drain path, or water level sensing.
Can I fix Er:15 on my Thermador range myself?
Some causes of Er:15 are DIY-accessible, such as cleaning a clogged pump filter, clearing a blocked drain hose, or inspecting wiring connectors for corrosion. If the pump motor itself has failed or the water level sensor needs replacement, those repairs require sourcing the correct parts and a moderate level of technical skill. Always disconnect power before inspecting internal components.
Is it safe to keep using my Thermador range when Er:15 appears?
You should not continue operating the appliance while Er:15 is active. The control halts the cycle specifically to prevent pump motor burnout or potential water overflow. Running the unit in this condition could cause additional component damage or a water-related hazard.
How much does it cost to repair a Thermador range showing Er:15?
Repair costs vary depending on the root cause. Clearing a clogged filter or drain hose costs little to nothing beyond your time. Replacing a failed drain pump motor typically runs in the range of $100 to $300 for parts, with additional labor costs if a technician is needed. A faulty water level sensor is generally less expensive, often in the $30 to $100 range for the part.
Will resetting my Thermador range clear the Er:15 code?
Resetting the appliance by disconnecting power may temporarily clear the error display, but the code will return if the underlying cause has not been addressed. The pump circuit or drain path must be inspected and the fault corrected before the system will complete a drain cycle successfully.

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