Vaillant VM 282/2-5 Control PCB Ref. 0020034604
The Vaillant boilers from the VM 282/2-5 range incorporate a control PCB that manages the ignition, burner modulation, pump, and safety features. When this part fails, the boiler may not start, become locked, or exhibit erratic behavior. Users may notice faults such as F.33 or F.36, which indicate problems with gas evacuation. This PCB is compatible with several models, including the VM 240/2-5 and the VMW 282/2-5, among others. It is recommended to replace it when the mentioned symptoms occur.
VAT included
Consult via WhatsAppVaillant boilers compatible with reference 0020034604
PCB with reference 0020034604. 14 verified compatibilities: VMW 240/2-3 and VMW 240/2-3 R1.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Vaillant VMW 240/2-3 | VMW (mixed turboTEC/turboMAX, wall-hung mixed) | Contrasted |
| Vaillant VMW 240/2-3 R1 | VMW (mixed turboTEC/turboMAX, wall-hung mixed) | Contrasted |
| Vaillant VMW 242/2-3 R1 | VMW (mixed turboTEC/turboMAX, wall-hung mixed) | Contrasted |
| Vaillant VMW 242/2-3 R2 | VMW (mixed turboTEC/turboMAX, wall-hung mixed) | Contrasted |
| Vaillant VMW 242-5 | VMW (mixed turboTEC/turboMAX, wall-hung mixed) | Contrasted |
| Vaillant VMW 280/2-5 | VMW (mixed turboTEC/turboMAX, wall-hung mixed) | Contrasted |
| Vaillant VMW 282/2-5 | VMW (mixed turboTEC/turboMAX, wall-hung mixed) | Contrasted |
| Vaillant VM 240/2-5 | VM (heating only) | Contrasted |
| Vaillant VM 242/2-5 | VM (heating only) | Contrasted |
| Vaillant VM 280/2-5 | VM (heating only) | Contrasted |
| Vaillant VM 282/2-5 | VM (heating only) | Contrasted |
| Vaillant VM 202/2-5 | VM (heating only) | Contrasted |
| Vaillant VMI 280-7 | VMI (compact interior) | Contrasted |
| Vaillant VMI 282-7 | VMI (compact interior) | 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. 0020034604 is the part for your boiler
What determines it is not the boiler model, but the reference printed on the part you already have installed.
- Find the reference printed on the installed part and check whether it matches the catalogue reference 0020034604. 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 and faults that the PCB 0020034604 resolves.
The PCB controls the ignition, modulation, and safety features of the boiler. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The boiler does not start, even when you request heating.
Cause: If the PCB does not process the signal from the thermostat, the ignition command does not arrive.
Bridge the terminals of the thermostat on the PCB; if it starts, the problem is the thermostat.
- 02
Sometimes the pump works, but not the gas valve, or vice versa.
Cause: Each relay on the PCB controls a component; if one fails, only the component controlled by that relay stops functioning.
Identify which component is not functioning, pump or valve, to determine which relay may be faulty.
- 03
The boiler shuts down suddenly and does not restart until you reset something.
Cause: The fuse on the PCB protects the circuit; if it blows, it cuts off the power to the electronics.
Locate and check the fuse on the PCB, accessible without disassembly, before replacing the board.
- 04
The thermostat indicates demand, but the boiler does not respond.
Cause: Without the control current from the PCB, no peripheral receives the signal even if there is demand.
Measure if there is voltage at the control output terminals with a multimeter before replacing the PCB.
Fault codes from Vaillant that this part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| F.33 | Gas evacuation fault | This code indicates a problem in the gas evacuation path. If the PCB is not functioning properly, it may not be adequately controlling the fan, causing blockages. Check the PCB for possible faults. |
| F.36 | Gas evacuation fault | This error indicates a fault in the gas evacuation path. If the PCB fails, it may not be activating the fan, which can cause blockages in the system. Check the PCB to ensure it is functioning correctly. |
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 Vaillant 0020034604 PCB.
- Catalogue reference
- 0020034604
- Brand
- Vaillant
- Type of part
- PCBs (control boards)
- Units in stock
- 1 unit
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- 1-2 business days
- Return
- 14 days
Data read on the part and in the manufacturer's documentation
What we have not been able to verify does not appear here.
- Mains voltage
- 230V, terminal L-N-3-4-5
- Control voltage (low voltage)
- 21V, terminal 7-8-9
- Fuse
- T1.25
- Relays
- ZETTLER (x3)
- The relays are branded ZETTLER: they are the manufacturer of the component, not the entire PCB.
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Vaillant VM 282/2-5 Manual (PDF)Document © Vaillant, provided as a technical reference.
Frequently asked questions about the PCB 0020034604
Is this Vaillant control PCB Ref. 0020034604 compatible with the Vaillant VM 282/2-5?
How many models are compatible with this control PCB?
What fuse does the control board of the Vaillant VM 282/2-5 use?
What voltages does this PCB handle in the Vaillant VMI 282-7?
What are the documented fault codes for this PCB?
What is the reference for this control PCB?
Spare parts related to Vaillant VMW (combi turboTEC/turboMAX, wall-mounted combi)
