A14
Beretta
Gas Valve Modulation Fault
A14 error; unit may not modulate correctly or may shut down
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Defective gas valve modulating coil, Broken wiring to gas valve, Faulty control board gas driver, Incorrect gas valve calibration
How to Fix / Troubleshooting
Safety: Gas components must only be serviced by qualified personnel. Turn off gas and power before any work.
- 1. Reset and test: If A14 appears immediately on demand, the control cannot modulate the gas valve.
- 2. Visual wiring check: Inspect the gas valve connector and wiring harness for damage or loose pins.
- 3. Technician diagnostics: A professional should measure coil resistance, verify supply voltage during operation, and check gas pressures.
- 4. Replace gas valve if faulty: If the valve does not respond to modulation signals or is out of calibration, it must be replaced and adjusted using a flue gas analyzer.
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Repair Difficulty
Professional Required
5/5
Required Part
Beretta gas valve
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