What C-30 means on your Dacor range (dacor range c-30)
Dacor range c-30 is distinct from the oven cavity-sensor code c-20: it refers to a sensor built into the main PBA itself that monitors the board’s own operating temperature, and c-30 fires when that sensor circuit reads open or shorted while the range is running. On a range, the control-board area sits near both oven heat and, on some installations, radiant heat from the cooktop, which can make ventilation around this area more demanding than on a standalone wall oven. When the PCB sensor itself fails, the main PBA can no longer confirm it is running within safe limits, so it halts operation as a precaution.
Symptoms
These are the symptoms that distinguish C-30 on a Dacor range from the look-alike problems that would need an entirely different range repair.
- C-30 appears during operation and the range stops the current cycle.
- The problem may correlate with how long the range has been running, appearing more often on longer cycles as board temperature climbs.
- There is typically no smell or unusual noise, since this is an internal board-monitoring problem.
- The range may restart briefly before tripping c-30 again on a subsequent attempt.
- Cooktop burner heat and ventilation clearance behind the range are not something an owner can easily verify without a technician.
Common causes
More than one thing can produce C-30 on a range, so the causes below are ordered by how often they turn out to be responsible on a Dacor range.
- Failed PCB temperature sensor — the sensor monitoring the board itself has shorted or opened internally.
- Damaged sensor trace or connection on the board — a physical problem on the main PBA itself rather than an external wire.
- Restricted airflow around the control area — poor ventilation behind the range can push real board temperature high enough to complicate diagnosis.
- Main PBA age-related component failure — components on the board can fail after years of thermal cycling.
- Moisture or grease exposure near the control board — cooktop steam and spills can affect the PCB sensor circuit over time.
Troubleshooting steps you can try
Work through these checks on your range in order before calling anyone out, and stop wherever mains voltage, gas, a hot surface or a sealed component on the range is involved.
- Power-cycle the range at the breaker and allow it to sit off for several minutes before restoring power.
- Avoid running back-to-back long cycles (self-clean, extended roasting) until c-30 is diagnosed.
- Check that nothing is blocking ventilation around or behind the range’s control area.
- Note whether the problem appears consistently after a similar length of run time each time.
- Do not attempt to open the control housing to inspect the main PBA yourself.
Parts a technician may replace
On a range in this condition the likely candidates are the main pba temperature sensor and main pba. Each is tested on the range before it is replaced, and the part is matched to your range from its model and serial number.
When to call a technician
C-30 is a board-level sensor failure rated High severity, and diagnosing it requires opening the control housing, which is technician work. With a High-rated problem, continuing to run the range risks turning a repairable range into a replaceable one. We answer to you and not to Dacor, we fit genuine parts to your range, and we warrant that labor for 30 days.
Related help and Dacor resources
A persistent the C-30 condition on a range is worth booking rather than repeating — arrange range repair, or start with our guides. www.dacor.com has the manufacturer detail for the range.
