Thermador Error Codes
& Diagnostics

CALC Coffee Machine The CALC message on Thermador Masterpiece built-in coffee machines indicates that mineral scale from hard water has accumulated inside the heating system and water circuit. The machine requires a descaling cycle to restore full heating performance and protect internal components from scale damage. Low View details → EMPTY-GROUNDS Coffee Machine The EMPTY-GROUNDS message on Thermador Masterpiece built-in coffee machines indicates the spent coffee grounds container is full and must be emptied before the machine can complete another brewing cycle. The machine counts pucks and stops when the bin capacity is reached. Low View details → Error-1 Coffee Machine Error 1 on Thermador Masterpiece built-in coffee machines indicates the machine is too cold to operate — the control board detected an ambient or internal temperature below the minimum operating threshold, or the temperature sensor has failed and is reporting an erroneously cold reading. Medium View details → Error-3 Coffee Machine Error 3 on Thermador Masterpiece built-in coffee machines indicates a water pump fault. The machine detected that the pump is not building adequate pressure, is not circulating water, or has a debris blockage preventing normal flow through the brewing circuit. High View details → Error-5 Coffee Machine Error-5 indicates a generic internal technical malfunction on Thermador Masterpiece BICM24CS built-in coffee machines. The control detected a fault that requires service diagnosis. High View details → Error-8 Coffee Machine Error 8 on Thermador Masterpiece built-in coffee machines means the brewing unit failed to initialize — it could not move into its upper starting position during the startup or mid-cycle self-check. The brew unit drive mechanism is blocked, jammed, or has a sensor fault preventing the machine from completing a brewing cycle. High View details → FILL Coffee Machine The FILL message on Thermador Masterpiece built-in coffee machines indicates the water tank is empty or the tank's float switch is not registering adequate water. The machine cannot brew, steam, or rinse until water is added and the tank is properly seated. Low View details → NO-BEANS Coffee Machine The NO-BEANS message on Thermador Masterpiece built-in coffee machines indicates the bean hopper is empty or the grinder cannot detect beans in the hopper. The machine will not begin grinding or brewing until beans are added and the hopper is confirmed loaded. Low View details → E1 Cooktop The E1 error code on Thermador induction cooktops indicates a cooking zone has exceeded its maximum safe operating temperature. The control board shuts the affected zone down automatically and displays E1 until the electronics cool to a safe level. High View details → E2 Cooktop The E2 error code on Thermador induction cooktops indicates the temperature sensor for a cooking zone has failed or is reporting an out-of-range reading. Without a working sensor, the control board cannot monitor zone temperature and shuts the zone down as a precaution. High View details →