Vaillant Ecotec Plus Gas Valve VUW 246 5 5 824 Ref. 0020148381
RefurbishedVaillantGas valves

Vaillant Ecotec Plus Gas Valve VUW 246 5 5 824 Ref. 0020148381

70 €VAT includedIn stock · 1 unit

Gas valve: refurbished spare part that regulates and modulates the gas flow to the burner. Useful if there are ignition faults or the flame does not modulate. Compatible with ecoTEC plus 824 (VUW 246/5-5), ecoTEC plus 831 (VUW 316/5-5), ecoTEC plus 837 (VUW 376/5-5) (ref. 0020148381). Includes a one-year warranty and delivery within 2–4 working days in the EU.

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Delivery in 2–4 working days
1-year warranty
14-day return
Technical support

Key Data

Reference
0020148381
Brand
Vaillant
Type of part
Gas valves
Available units
1 unit in stock
Status
Refurbished
Warranty
1 year
Shipping
2–4 working days (EU)
Return
14 days

The same part (ref. 0020148381) equips these models. Verified compatibility; check the reference before purchasing.

Vaillant ecoTEC plus (VUW combi)

  • ecoTEC plus 824 (VUW 246/5-5)
  • ecoTEC plus 831 (VUW 316/5-5)
  • ecoTEC plus 837 (VUW 376/5-5)

Vaillant ecoTEC plus (VU heating only)

  • ecoTEC plus 612 (VU 126/5-5)
  • ecoTEC plus 615 (VU 156/5-5)
  • ecoTEC plus 618 (VU 186/5-5)
  • ecoTEC plus 624 (VU 246/5-5)
  • ecoTEC plus 630 (VU 306/5-5)

Fault codes related to this part (not the entire boiler). They usually have more possible causes: first rule out electrodes, wiring/connections, and gas supply. Verified with ≥3 sources.

CodeWhat does it mean?Cause and diagnosis (this part)
F.26Fuel valve not functioning.The stepper motor/actuator of the gas valve is disconnected or faulty; check the power supply and continuity of the actuator and harness to the valve connector.
F.27Flame simulation (flame detection when it shouldn't).The leaking gas solenoid valve may allow gas to pass when the burner is off; check the valve's tightness/closure (closure test) and rule out moisture in the electronics.
F.28Ignition fault on start-up.The faulty/closed gas valve prevents supply during the spark; check the opening order (voltage at connector) and gas pressure/flow during the ignition sequence.
F.29Flame loss during operation (failed re-ignition).A fault/intermittency in the gas valve or its adjustment can cut or fail to modulate the flow; check modulation/stability of pressure and wiring to the valve.
F.53Combustion regulation fault / unexpected gas mass.The gas valve does not properly regulate the requested flow; check dynamic pressure, Venturi/mass sensor, and valve operation.
F.54Gas supply fault (start-up) / insufficient gas.A faulty gas valve may not allow passage despite having pressure; check inlet pressure and effective opening of the valve during start-up.
F.56Fault in combustion component (CO protection/regulation).Defective contact or fault in the gas valve; if after checking the wiring the fault reappears, the valve is considered defective. Verify control signal, continuity/insulation, and modulation response.
F.61Fault in the activation/command of the gas valve.Coils to ground/short circuit or faulty valve prevent its operation; check control voltage at connector, continuity/insulation of coils, and if there is correct signal and it does not open, replace the valve.
F.62Delay in the closing of the gas valve.Internal leak or stuck solenoid cause the flame to take time to extinguish; check that the ionisation signal drops when closure is commanded and perform a valve tightness/closure test.
F.88Fault: gas valve (connection).The valve is disconnected/improperly connected or there is a short circuit in the harness; check the plug, polarity, and continuity of the wiring to the valve assembly.
How do I know if this gas valve is the one for my boiler?
Verify the reference 0020148381 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part. It is a Honeywell piece.
What is it used for?
The gas valve regulates and modulates the gas flow to the burner.
Ignition faults, does not modulate, or smells of gas?
It could be the gas valve. IMPORTANT: gas handling ONLY by an authorised technician.
Which models is it suitable for?
Part shared by various models (see Compatibility). If your model does not appear, send us a photo of the marking and we will confirm it.
Installation and recommendations
Installation and pressure adjustment by authorised technician; mandatory leak check.
What does refurbished mean and what coverage does it have?
Part removed from a boiler out of service, inspected and tested. Includes 1-year warranty and 14-day return policy. Delivery within 2–4 working days in the EU.
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