Thermador Cooktop Error Code E0142

E0142 indicates that the left ADB (Analog Distribution Board) has detected an error in its A/D current converter circuit, meaning it cannot accurately measure the current flowing through the left induction coils. The cooktop disables the affected zone when this fault is present to prevent uncontrolled power delivery. The primary fix is replacement of the left relay board.

No. When E0142 is active, the cooktop's ability to regulate power to the left induction zone is compromised. Continuing to use the affected zone creates a risk of uncontrolled heating or electrical damage. The right-side zones may still function, but the left side should remain unused until the fault is repaired.

Repair costs vary depending on parts pricing and local labor rates. The left ADB relay board typically falls in the range of $150 to $400 for the part alone, and professional labor to diagnose and replace it can add another $100 to $250. Total repair costs commonly range from $250 to $650, though prices differ by region and service provider.

Replacing the left ADB relay board requires working inside the cooktop with components that can carry high voltages. While an experienced DIYer comfortable with appliance repair may be able to complete the board replacement, most homeowners should hire a certified appliance technician. Disconnecting power at the breaker before any disassembly is essential.

A power reset by switching off the circuit breaker for 30 seconds and restoring power may temporarily clear the display, but the error will return if the underlying ADB fault is still present. A reset does not repair the A/D current converter circuit, so the code should be treated as an active hardware fault requiring board diagnosis or replacement.