DCS Error Codes
& Diagnostics

CLICK-NO-IGN Cooktops The CLICK-NO-IGN condition on DCS CPU-366 and CPU-486 cooktops describes a state where the ignition module is generating audible spark clicks but the burner fails to produce a flame. The spark is occurring but either is not reaching the gas or the gas is not present at the burner. This is distinct from a total ignition failure because the electrical spark circuit is confirmed working. Medium View details → CONT-SPARK Cooktops The CONT-SPARK condition on DCS CPU-366 and CPU-486 cooktops describes a state where the ignition module continues to produce clicking sparks continuously, even when no burner knob is in the ignition position or after a burner is lit. Continuous clicking is both a nuisance and a potential hazard — sustained spark activity can damage the ignition module over time and, in rare cases, ignite spills near the igniter electrode. Medium View details → F1 Cooktops The F1 error on DCS CPU-366 and CPU-486 cooktops indicates a fault in the electronic ignition module. The control circuit has detected that the ignition board is not responding within the expected timing window. This usually points to a failed ignition module, a wiring fault, or severe moisture intrusion that has disrupted the igniter circuit. High View details → F3 Cooktops The F3 error on DCS CPU-366 and CPU-486 cooktops indicates the flame supervision system has failed to confirm a stable flame signal at a lit burner. The flame sensor — typically a thermocouple or flame rectification probe — did not return a satisfactory voltage to the control board within the expected window, causing the board to cut gas as a safety precaution. High View details → F4 Cooktops The F4 error on DCS CPU-366 and CPU-486 cooktops indicates the control board has detected an unexpected signal from the gas valve circuit. Either the valve failed to open on command, the valve position sensor returned an out-of-range reading, or the solenoid driver circuit on the control board has malfunctioned. This is a safety-critical fault that prevents the affected burner from operating. High View details → GAS-SMELL Cooktops The GAS-SMELL condition on DCS CPU-366 and CPU-486 cooktops describes a situation where a natural gas or propane odor is present near or around the cooktop. This is always treated as a high-severity safety condition regardless of whether any error code is displayed on the control panel. Gas odor can indicate a supply leak, a failed valve, or residual gas from a failed ignition attempt. High View details → LOW-FLAME Cooktops The LOW-FLAME condition on DCS CPU-366 and CPU-486 cooktops describes a burner that ignites and burns but produces a flame that is noticeably smaller, weaker, or more uneven than its rated output. The burner may not reach high heat or may fluctuate unexpectedly. This condition typically points to restricted gas flow at the burner level rather than a control board fault. Medium View details → NO-IGN Cooktops The NO-IGN condition on DCS CPU-366 and CPU-486 cooktops occurs when the ignition system attempts to spark a burner but fails to produce a confirmed light within the maximum ignition attempt window. The control board stops the ignition sequence and displays NO-IGN rather than continue sparking indefinitely, preventing gas accumulation. Medium View details → PF Cooktops The PF code on DCS CPU-366 and CPU-486 cooktops is a non-critical notification that the cooktop experienced an interruption to its power supply since the last use. It appears automatically when power is restored after an outage, brownout, or circuit trip. No component has failed — the cooktop is reminding the user to verify burner settings and confirm safe operating state. Low View details → YELLOW-FL Cooktops The YELLOW-FL condition on DCS CPU-366 and CPU-486 cooktops describes a burner producing a predominantly yellow or orange flame rather than the correct blue flame. Yellow flame indicates incomplete combustion — the gas and air mixture is not burning efficiently, producing soot and elevated carbon monoxide output. This is a health and safety concern that should be corrected promptly. Medium View details →