The induction cooktop on a Dacor Renaissance range does not show its error codes to the cook. Dacor’s Technical Diagnostic Quick Reference says the codes are stored for later retrieval by a technician; what you see is a zone that will not heat, a power-level light that blinks, or a side of the cooktop that has shut itself down. This guide explains the twelve stored codes, F0 to FB, for the Renaissance induction range models RR30NS, RR30NIS, RR30NFS and RR30NIFS, and which cooktop behaviors are normal safety features rather than faults. The oven under that cooktop keeps its own code list; see our Dacor oven error codes guide for those.
How the cooktop is built, and why it matters
Dacor builds the cooktop as two identical halves. Each induction generator assembly runs two cooking zones, front and rear, as separate circuits, and the left and right generator assemblies, their touch controls, ribbon cables and wiring are separate but identical. Dacor’s own diagnostic method follows from that: a technician uses the working side to test the failed side by process of elimination. For you it means the most telling symptom is lopsided. If both zones on one side are dead while the other side cooks normally, the fault is in that side’s generator, ribbon cable or touch control. If both sides are out, the first suspect is the power supply to the range.
Normal behavior that is not a fault
Several things this cooktop does on purpose get reported as errors. Dacor lists them under safety features and the system check, and none of them stores a code.
The lights count 1 to 9 after a power interruption. When power is turned off and back on, each generator runs a system check: it beeps, the power-level LED counts up from 1 to 9, then goes blank. That is the cooktop testing itself, and a successful check also clears any stored code whose cause has been fixed.
The zone shuts off and the power-level light blinks. When a pan is lifted off a zone in use, or a zone is turned on with no pan on it, the inductor de-energizes and the LED blinks its current setting for 30 seconds, then turns off. Put the pan back within those 30 seconds and the zone resumes.
A zone will not turn on for a particular pan. The inductor will not energize for a small utensil such as a knife or a ring, or for an unacceptable pan such as aluminum. Dacor lists stainless steel with a metal bottom, enameled iron or steel, and cast iron as compatible, and copper, glass, aluminum and pottery as not. Pans should be flat-bottomed and at least four inches across.
The heat backs off during a hard sear. The generator reduces wattage when the glass reaches 300°C and holds it there to prevent oil fires and protect the cooktop during a dry boil. The hot-surface indicator comes on at 105°C and stays lit until the glass cools below 65°C.
Dacor induction cooktop codes F0 to FB
When the codes are called up, the seven-segment power-level display alternates between F and a digit at half-second intervals, the generator fan runs, and the display cancels itself after 10 seconds. The generator may keep cooking through a very brief fault, or shut that side down when the fault persists.
| Code | Meaning | What we check, and when to call |
|---|---|---|
| F0 | No error codes stored | Nothing; if a zone still misbehaves, the cause is a pan, a setting or a power issue rather than a stored fault |
| F1, F2 | Rear zone temperature sensor (NTC) shorted or open | The generator assembly on that side. Call: Dacor’s remedy is replacing the generator assembly |
| F3, F4 | Front zone temperature sensor shorted or open | Same as above, for the front zone |
| F5, F6 | Power transistors shorted or open | The generator assembly. Call: that side will not cook reliably until it is replaced |
| F7 followed by a crawling segment | Electronics above 70°C; the crawler runs until it cools | The induction fan, airflow around the generator and through its ducting, and heat from the oven below. Call if it recurs on a clean, cool cooktop |
| F8 | Front and rear sensor connections reversed on the generator | A manufacturing error; Dacor replaces the generator assembly. Call |
| F9 | Supply voltage below 180 volts AC | The power supply to the range, from the breaker to the terminal block. Check your breaker first, then call |
| FA | Communication error | The ribbon cable at the touch control and generator, the touch control connection at the glass, then side-to-side elimination. Call |
| FB | Indicator LED voltage error | The power supply, then the same ribbon and touch-control connections as FA. Call |
F1 to F6 and F8: the generator assembly
Seven of the twelve codes end in the same place. Each zone has a negative-temperature-coefficient sensor under the glass, and F1 through F4 report one of them reading shorted or open, rear zones first, front zones second. F5 and F6 report the power transistors that drive the coils as shorted or open. F8 means the front and rear sensor connections were reversed at the factory. For every one of these, Dacor’s proposed solution is the same: replace the induction generator assembly for that side. There is no sensor-only or transistor-only repair in the reference, which is why a quote for a dead induction side is a quote for the generator, and why we confirm the code before ordering it.
F7: the electronics got too hot
F7 is the one code with an everyday cause. It appears when the generator’s electronics pass 70°C, and the display follows it with a crawling horizontal segment that keeps moving until the temperature drops back under 70°C. Dacor’s checks are the induction cooling fan, the airflow around the generator and through its ductwork, and heat arriving from elsewhere in the range: broiling with the oven door open, a worn door seal or hinges, and damage to the rear or bottom of the range. Two of those are yours to rule out before you call. Keep the oven door closed when broiling, and make sure nothing has been pushed against the back or under the range that blocks its air path. If F7 comes back with the kitchen cool and the vents clear, the fan or its airflow path needs service.
F9, FA and FB: power and communication
F9 means the supply voltage fell below 180 volts AC, and Dacor’s only check is the power supply from the main. A range runs on a double-pole breaker; if one pole has tripped or a connection at the panel or terminal block is poor, the generator sees low voltage. Look at the breaker, and if it is tripped, reset it once. If it trips again, leave it off and call, because a breaker that will not hold is not a cooktop setting problem.
FA is a communication error between the touch control and the generator, and FB is a voltage error at the indicator LEDs. For both, Dacor checks the ribbon cable connections at the touch control and the generator and the touch-control connection at the cooktop glass, then uses the identical opposite side to isolate the failed part, since each side’s circuit is separate from the power terminal block to the touch control. These are the codes most likely to be a connection rather than a replaced assembly, and the ones where guessing costs the most: a generator ordered for a loose ribbon cable is money spent on nothing.
Reading the stored codes
On the 16/22 generator, the last two codes are shown by holding that side’s HIGH preset keys for six seconds with the generator in standby, powered but with no zones running. The fan starts, the display alternates F and the digit, and it clears after 10 seconds. We do this on arrival; if you try it, make sure the glass is clean and empty first, because a pan or a spill on the touch pads can be read as a key. Turning the power off and on afterward resets the codes only if the cause has been corrected; a fault that is still present will store the code again.
What to note before you call
Tell us which side and which zone, whether the other side still works, whether the power-level lights counted 1 to 9 on the last power-up, and what the cooktop was doing when it quit: a long sear, a boil-over, or nothing unusual. If you reset the breaker, say so. Keep using the working side; the two generators are independent.
Why an induction side is tested, not guessed
The code list is short, but the repairs are not interchangeable. F1 through F6 and F8 are an assembly; F7 is airflow; F9 is the house wiring; FA and FB are usually a cable. Dacor’s own method is to swap known-good components from the working side until the failed part is found. We follow it, read the stored codes, confirm them live, and quote the actual repair with genuine OEM parts, with the diagnostic fee credited toward it. If replacing a generator does not make sense against the value of the range, we will say so.
Dacor induction cooktop repair across the Denver Metro
FiXiFY repairs Dacor induction ranges and cooktops across Denver, Aurora, Lakewood, Westminster and the rest of the metro. See cooktop repair, range and oven repair for the oven side, the Dacor page, or our Wolf oven error codes guide for another premium brand.
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FAQ
Why does my Dacor induction cooktop not show an error code?
Dacor’s reference says the Renaissance induction cooktop stores its codes for a technician instead of displaying them. The cook sees the symptom only: a zone that will not heat, a blinking power level, or one side shut down. The last two stored codes are read on the power-level display with the generator in standby.
What does F7 mean on a Dacor induction range?
F7 means the induction generator’s electronics went above 70 degrees C; a crawling segment follows the code until it cools. Dacor checks the induction fan and the airflow around and through the generator, plus heat from the oven, such as broiling with the door open or a worn door seal. Keep the door closed when broiling and the vents clear, and call if it returns.
Why does one side of my Dacor induction cooktop work and the other not?
The cooktop has two identical generator assemblies, each running a front and a rear zone, with separate touch controls, ribbon cables and wiring. A dead side with a working side points to that side’s generator, cable or touch control, and Dacor diagnoses it by swapping known-good parts from the working side. Both sides dead points to the power supply first.
Why does the power level light blink and the zone turn off?
That is pan detection, not a fault. When a pan is lifted off a zone in use, or a zone is switched on with no pan, the inductor de-energizes and the LED blinks the current setting for 30 seconds before turning off; replacing the pan within that time restarts it. The zone will also refuse a small utensil or an aluminum pan.
FiXiFY Appliance Repair — 7030 E 46th Ave Dr, Unit A, Denver, CO 80216 · (303) 214-1240 · support@fixifycolorado.com