Unox WF35 Error Code
EG1, EG2 or EL2 valve fault.
Source: Unox/Unox_XACC-0513-EPLM_ServiceManualAll_CommercialKitchen.pdf
What does Unox WF35 mean?
WF35 is a warning indicating a fault with valve EG1, EG2 or EL2 in the oven's water/steam circuit. One of these valves is not operating correctly. As a warning the oven keeps running with reduced function while flagging that one of these valves needs service.
Symptoms
- WF35 warning on the control panel
- Steam or water function impaired
- A valve (EG1, EG2 or EL2) not actuating
- Warning recurs during the affected cycle
Common causes
- One of valves EG1, EG2 or EL2 stuck or faulty
- Valve coil failure
- Wiring fault to the valve
- Scale or blockage in the valve
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Diagnostic steps
Power down and locate the valves
Turn off power and identify valves EG1, EG2 and EL2.
Test each valve
Verify each valve actuates when energised and is not blocked.
Measure coils and wiring
Check the valve coils and wiring with a multimeter to isolate the faulty valve.
Replace the faulty valve
Replace whichever valve does not operate correctly and retest.
When to call a professional
WF35 spans three solenoid valves, so isolating the faulty one takes methodical testing. Replacing the valve is electrical and plumbing work for a qualified Unox technician if a basic check does not resolve the warning.
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Other Unox Error Codes
Motor thermal protection alarm (permanent error) — the fan motor's thermal protection has tripped.
Safety thermostat alarm — the chamber safety thermostat has tripped above its limit.
Temperature probes alarm — a cooking chamber temperature probe is damaged or disconnected.
Communication error with the power board — the control board lost communication with the power board.
Gas alarm — a fault in the gas burner/ignition system (split into multiple AF23 conditions on later software).
Wrong position of Pollo valve.
Trolley is missing.
Tank missing or safety thermostat fault.
Chamber ceiling temperature too high.
Chamber over-temperature condition (Case 1: T > 150 °C / 302 °F; Case 2: T < 150 °C).
Single-point or multi-point core probe completely damaged.
Chamber temperature probe warning.