Thermador Cooktop Error Code ErXY

ErXY indicates that the touch control module has detected an internal failure it cannot resolve on its own. The cooktop displays this code and may disable operation to prevent unsafe use. The fault is located within the touch control assembly itself rather than in an external component like a temperature sensor or relay.

You should not attempt to use the cooktop while the ErXY error is active. The touch control module has reported an internal failure, which means the control circuitry may not reliably interpret commands or regulate burner operation. Continuing to use the appliance in this condition poses a potential safety risk.

A reset by cutting power at the circuit breaker for several minutes can clear the error if the cause was a temporary firmware or processor glitch. However, if the underlying cause is a hardware failure such as a damaged board, failed component, or contaminated circuit, the error will return after power is restored. A reset that does not hold is a strong indicator that the touch control module requires physical inspection or replacement.

A power cycle, performed by cutting power to the cooktop at the breaker for several minutes, is a reasonable first step and may clear a temporary firmware glitch. If the error returns after restoring power, the repair typically involves accessing the control module to inspect ribbon cable connections and the board itself, which requires disassembly and a level of comfort with electronics. Most homeowners will benefit from having a qualified technician handle this repair.

Repair costs vary depending on whether the touch control module needs replacement or if the issue is a simpler connection problem. Touch control board replacements for premium cooktops like Thermador typically range from $200 to $600 or more including parts and labor. A service diagnostic visit alone generally costs between $75 and $150 before any parts are factored in.