Thermador Cooktop Error Code E0114

E0114 indicates a communication error or poor quality communication between the left ADB (Appliance Distribution Board) and the main PB (Power Board) inside the cooktop. These two boards must exchange data continuously to operate the induction zones correctly. When that communication fails or degrades, the cooktop logs this code and may disable affected zones. Diagnosis starts with inspecting the wiring between these two boards.

It is not recommended to continue using the cooktop while E0114 is active. A communication fault between control boards means the cooktop cannot reliably manage power to the induction zones, which could result in unpredictable behavior. The affected zones may simply stop working, but operating the unit in a fault state risks additional damage to the boards or wiring.

Repair costs vary depending on the root cause. If the fix is simply reseating a loose connector, you may only pay for a diagnostic service call, typically in the range of $75 to $150. If a wiring harness needs replacement, expect parts and labor to run $150 to $350. Replacing an ADB or PB board on an induction cooktop can bring total costs to $300 to $700 or more, depending on parts availability and local labor rates.

A knowledgeable DIYer comfortable working inside appliances can check for loose connectors and visible wiring damage after disconnecting power to the unit. However, diagnosing a faulty ADB or PB board requires following the manufacturer's specific diagnostic flowchart for codes E0114 through E0314, and board replacement requires handling high-voltage induction components. For most homeowners, a qualified technician is the safer choice.

A power reset by turning off the circuit breaker for 30 to 60 seconds may temporarily clear the code if the fault was caused by a transient signal glitch. However, if there is an underlying hardware problem such as a damaged wire, corroded connector, or failing board, the error will return once the cooktop is powered back on and attempts to establish communication between the boards.