Vaillant Gas Valve VMW 242/4-5 M Ref. 0020019992
The Vaillant Gas Valve VMW 242/4-5 M, with reference 0020019992, is a component that regulates the flow of gas to the burner of the boiler. Its function is crucial, as it allows gas to reach the burner under the command of the control board. When this valve fails, the user may notice that the boiler does not ignite, experiences flame lockouts, or has modulation issues. It is compatible with several models from the Vaillant Turbotec range, such as the VM 242/4-5 and the VMW 255/4-7, among others. A technician must confirm through diagnosis whether it needs to be replaced when faults F.61, F.62, F.26, F.27, or F.28 are detected.
- Type of part
- Gas valves
- Status
- Refurbished
- Catalogue reference
- 0020019992
- Warranty
- 1 year
Vaillant boilers compatible with reference 0020019992
Gas valve with reference 0020019992. Four confirmed compatibilities: VM 242/4-5 (VM24245) and VMW ES 242/4-5.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Vaillant VM 242/4-5 (VM24245) | Vaillant Turbotec / VM-VMW ES (LPG butane-propane) | Contrasted |
| Vaillant VMW ES 242/4-5 | Vaillant Turbotec / VM-VMW ES (LPG butane-propane) | Contrasted |
| Vaillant VM 240/3-5 (M24035) | Vaillant Turbotec / VM-VMW ES (LPG butane-propane) | Contrasted |
| Vaillant VMW 255/4-7 (VMW25547) | Vaillant Turbotec / VM-VMW ES (LPG butane-propane) | Contrasted |
Can't see your model or have questions? The printed reference takes precedence. How to check it · Send us a photo via WhatsApp.
How to check if ref. 0020019992 is the part for your boiler
The part reference, model, and equipment revision must be verified against the manufacturer's documentation.
- Find the reference printed on the installed part and check whether it matches the catalogue reference 0020019992. If it is not visible, do not identify the part from its shape alone.
- Check the full boiler model on its data plate and look for it in the model associations on this page.
- Compare the connections and physical body with the original part before installation.
- If anything is unclear, send us a photo of the marking via WhatsApp before placing your order.
Symptoms that require diagnosis in the gas valve 0020019992
The gas valve regulates and modulates the gas flow to the burner. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The boiler tries to ignite and turns off after a few seconds, without producing a flame.
Cause: The gas valve does not allow gas to flow to the burner or cuts it off prematurely, and the control board locks for safety.
Measure with a multimeter if current is reaching the gas valve before considering it faulty.
- 02
The burner is not receiving gas even though the rest of the boiler starts up normally.
Cause: The coil of the gas valve does not open the internal shutter.
Make sure that the main gas shut-off valve is open and that the inlet pressure is correct before replacing the gas valve.
- 03
The boiler locks out indicating an electrical fault, with no current in the valve circuit.
Cause: The coil has an open circuit and does not generate the necessary magnetic field to open.
Measure continuity at the terminals of the coil with the multimeter; if it indicates an open circuit, confirm that it needs to be replaced.
- 04
The boiler turns on intermittently, sometimes it does and sometimes it doesn't.
Cause: The valve shutter does not open or close consistently due to internal wear.
First, check that there is no fault in the ionization or ignition electrode, as they can cause similar symptoms.
Vaillant fault codes that require diagnosis
| Code | Fault | Technical checks |
|---|---|---|
| F.61 | Fault: gas valve operation | The PCB cannot actuate the gas valve (coils short-circuited/open or harness damaged), so it does not open/close. Check continuity/insulation of coils and wiring to the valve and ensure the PCB delivers a signal according to the manual. |
| F.62 | Gas valve disconnection delay | The gas valve does not close in time or remains slightly open, and the equipment detects gas/flame after the stop command. Check the valve's tightness and closure (leak test and ionization reading) and the electrical condition of the valve/wiring. |
| F.26 | Stepper motor current of gas valve not plausible | Stepper motor fault of the gas valve (disconnected, faulty, or with interrupted wiring) prevents positioning. Check connectors/harness, coil resistance of the stepper, and signal from the PCB; replace the valve if the motor does not respond. |
| F.27 | Safety shutdown: flame simulation | An internal leak in the gas valve (solenoid that does not close tightly) can allow gas to pass through and the equipment 'sees' a flame without demand. Check the tightness and closure of the solenoid with a leak test/manometer and electrical check of the valve. |
| F.28 | The appliance does not start: unsuccessful ignition attempts | If the gas valve is faulty, improperly adjusted, or not the correct part, it does not supply gas for ignition. Check inlet pressure, valve adjustment/offset, and control from the PCB; confirm with diagnostics that the valve operates and replace/adjust if necessary. |
These symptoms can have more than one cause. If your boiler displays a fault code, send it to us via WhatsApp along with a photo of the labeling, and we'll tell you if this is the part.
Data sheet for the gas valve Vaillant 0020019992
- Catalogue reference
- 0020019992
- Uniclima internal SKU
- VGCVTTVMW
- Brand
- Vaillant
- Type of part
- Gas valves
- Units in stock
- 3 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- Return
- 14 days
Part data and available documentation
Contrast the label codes, PCB, and revision with the installed part; they are not necessarily equivalent references.
- Current
- 1 A
- Ambient temperature
- -15°C to +70°C
- Diameter
- 8 mm
Frequently asked questions about the gas valve 0020019992
Does this gas valve Vaillant VMW 242/4-5 M work for my boiler Vaillant?
What reference is engraved on this valve?
What current does the gas valve Vaillant VMW 242/4-5 M operate on?
What ambient temperature range can this gas valve withstand?
How many models are compatible with this gas valve?
What is the product reference?
