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AGA is a premium British cooking brand known for cast‑iron ranges, radiant heat, and distinctive multi‑oven designs. In NYC homes, AGA units often serve as the centerpiece of the kitchen and see daily, high‑heat use. While the construction is robust, heavy thermal cycles, older installations, and ventilation constraints can introduce issues over time. This guide summarizes the most common AGA symptoms, provides error/alert patterns seen in modern control modules, and explains practical DIY checks vs. when to call a qualified technician. Our goals: speed up diagnosis, prevent unnecessary parts replacement, and extend service life. You’ll find frequent faults, 25+ fault indicators, technical notes (sensors, thermostats, relays), quick fixes, and decision points for repair vs. replacement.
Q: Why does my AGA preheat slowly?A: Check ventilation, door gasket seal, and power/gas supply stability; relays and probes may need calibration.Q: My burners click but won’t light—what now?A: Dry spills, clean/realign electrode and caps; if still failing, the spark module or gas flow needs service.Q: Is self‑clean safe to use often?A: Excess heat can stress components; periodic professional cleaning is safer for longevity.
AGA Range Error F1 – oven temperature sensor (RTD) open circuit
AGA Range Error F2 – oven over-temperature detected (runaway heat)
AGA Range Error F3 – temperature sensor shorted
AGA Range Error F4 – temperature sensor out of range
AGA Cooker – burner ignition failure (spark electrode)
AGA Cooker – gas valve sticking, delayed ignition
AGA Oven – convection/cooling fan not running
AGA Oven – broil/bake element open
AGA Dual Fuel – relay board stuck after surge
AGA Range – thermostat calibration drift (°F off target)
AGA Range – door lock not engaging after self-clean
AGA Cooker – simmer control module fault
AGA Hob – ignition module failure (no spark)
AGA Hob – knob/shaft fracture from heat
AGA Hood – blower motor noisy/failing
AGA Oven – door hinge spring failure
AGA Cooktop – flame spreader warped / uneven flame
AGA Range – enamel/glass cracking from heat stress
AGA Range – thermal cutoff open (high-limit)
AGA Oven – cooling airflow blocked (insulation sag)
AGA Cooker – wiring scorch at terminal block
AGA Range – spark igniter ceramic cracked
AGA Range – gas pressure/air mixture improperly set
AGA Warming drawer – element open, no heat
Uneven bake: verify rack placement; run calibration if available; inspect door gasket for gaps and replace if compressed.Slow preheat: confirm correct supply voltage and stable gas pressure; clear vents; power‑cycle to reset control logic.No ignition/clicking only: dry burners after spills; clean electrode and burner cap seating; check that burner caps are centered; try a controlled re‑seat of connectors with power off.Fan noise: remove debris, check for wobble; if seized, schedule bearing/motor replacement.Over‑temp alerts: ensure ventilation path is open; clean filters; avoid stacked pans blocking airflow.Preventive: periodic gasket inspection, gentle door handling, annual professional safety check for gas pressure/leaks, and cleaning around ignition components.
See the full catalog of our services—organized by brand and by appliance—right here.

































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