mypros+
Error code reference

Thermador Cooktop Error Code E0212

Power board error checking induction module component: communication between ASICs

Thermador codesThermador cooktop codes

Power board error checking induction module component: communication between ASICs — power modules cannot be correctly coordinated.

First step from the service manual

Replace the power board (PB).

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

MyPros+ Max

Get the full diagnostic procedure for E0212.

  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What E0212 means on a Thermador cooktop

Error code E0212 on a Thermador induction cooktop indicates a communication failure between the ASICs (Application-Specific Integrated Circuits) located on the power board. These ASICs are responsible for coordinating the individual power modules that drive each induction heating zone. When they cannot exchange data correctly, the cooktop's control system detects that the power modules are operating without proper synchronization and triggers this fault to prevent unsafe or erratic heating behavior.

The power board (PB) acts as the central hub for induction power delivery, managing timing signals and load distribution across all active burner zones. ASIC-to-ASIC communication relies on precise, low-voltage data signals transmitted across dedicated circuit pathways on the board itself. A failure in this communication chain is typically caused by internal board faults such as a damaged ASIC, a failed solder joint, corrupted firmware registers, or degraded signal traces. Because these components are integrated directly into the power board's circuitry, individual component-level repair is generally not feasible in the field.

Since the root cause is internal to the power board and not attributable to an external sensor or wiring harness, the prescribed first diagnostic step is direct replacement of the power board. Before replacement, technicians should verify that all board connectors are fully seated and free of corrosion, rule out any upstream power supply irregularities, and confirm the error is persistent rather than a one-time transient fault. If the error returns immediately after a reset, board replacement is the appropriate corrective action.

Source: manufacturer service documentation.

Common causes of E0212

  1. 01

    Failed or damaged ASIC on the power board

    Part replacement

    One or more of the Application-Specific Integrated Circuits responsible for coordinating power modules has failed internally. This is the most common root cause and is not repairable without board replacement.

  2. 02

    Degraded signal traces or solder joints on the power board

    Part replacement

    Heat cycling and vibration over time can crack solder joints or degrade the circuit traces that carry communication signals between ASICs. Inspect the board surface for visible cracking, discoloration, or lifted traces, though internal trace damage may not be visible.

  3. 03

    Corrupted firmware or register state on the power board

    Wiring / connection

    A power surge or interruption during operation can corrupt the operational state of the ASICs. Performing a hard reset by cutting power to the unit for several minutes may clear a transient fault, but if the error returns, the board requires replacement.

  4. 04

    Loose or corroded board connectors

    Wiring / connection

    Connectors supplying power or low-voltage signals to the power board can develop resistance from corrosion or vibration-induced loosening, disrupting the communication signals. Inspect and reseat all connectors to the power board before condemning the board itself.

  5. 05

    Upstream power supply irregularity

    Wiring / connection

    Voltage fluctuations or an improper supply voltage reaching the power board can interfere with ASIC operations and trigger a coordination fault. Verify the cooktop is receiving the correct supply voltage within the specified range before proceeding to board replacement.

See the test procedure for each cause

Frequently asked questions about E0212

What does E0212 mean on a Thermador cooktop?
E0212 indicates a communication failure between the ASICs on the cooktop's power board, meaning the internal chips that coordinate the induction power modules can no longer communicate correctly. This prevents the heating zones from being properly synchronized, so the cooktop shuts down as a safety measure. The fault is internal to the power board and typically requires board replacement to resolve.
Can I fix error code E0212 myself on a Thermador cooktop?
A homeowner or technician can attempt a hard reset by disconnecting the cooktop from power for several minutes to see if the error clears. They can also inspect and reseat all visible board connectors and check that the supply voltage is correct. However, if the error persists after these steps, the power board itself must be replaced, which requires disassembling the cooktop and handling high-voltage components. This repair is best performed by a qualified appliance technician.
Is it safe to use my Thermador cooktop while E0212 is active?
No, the cooktop should not be used while E0212 is active. The error indicates that the power modules controlling the induction zones cannot be properly coordinated, which means heating behavior could be unpredictable or uncontrolled. Continue using the appliance only after the fault has been diagnosed and corrected.
Will resetting the cooktop clear error E0212?
A power reset, performed by cutting power to the unit at the breaker for several minutes, may clear the error if the fault was caused by a temporary condition such as a power surge affecting the ASIC state. However, if the error reappears after the reset, the power board has an internal hardware failure and must be replaced. A reset alone will not fix a physically damaged or failed board.
How much does it cost to repair error E0212 on a Thermador cooktop?
Repair costs for E0212 typically involve the price of a replacement power board plus labor. Power boards for Thermador induction cooktops generally range from $200 to $500 or more depending on the specific model. Combined with professional labor, total repair costs commonly fall in the range of $300 to $700. Given the cost, it may be worth comparing the repair estimate against the age and overall condition of the appliance before proceeding.

Related Thermador cooktop codes

All Thermador cooktop codes
View all 129 Thermador cooktop codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass