E17
Danstoker
Gas Valve Train Safety Interlock Failure
Boiler controller shows E17; gas valve train safety fault.
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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
Faulty safety shutoff valve (SSOV) proving circuit, Defective valve end-switch, Misadjusted valve proving system, Wiring fault in Danstoker gas train safety loop
How to Fix / Troubleshooting
Safety: Gas work must be performed by licensed personnel. Shut off gas and power before inspection.
- Check valve indicators: Inspect the gas safety shutoff valves for position indicators. Confirm that valves open when commanded and that end-switches change state.
- Inspect wiring: Trace the safety loop wiring from the Danstoker controller through the gas valves and proving system. Tighten loose terminals and repair damaged cables.
- Valve proving system: If fitted, verify that the valve proving pump or sensor is operating and that test times are correctly set.
- Functional test: After corrections, perform a full safety test of the gas train as per standards.
Persistent E17 requires a gas technician to test and possibly replace gas valves or proving components.
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Repair Difficulty
Professional Required
5/5
Required Part
Gas Safety Shutoff Valve
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