Vaillant
Vaillant Printed Circuit Board 0020234139
Vaillant 0020234139 printed circuit board for Ecotec Exclusive gas boilers, controlling ignition, modulation and safety functions.
At a glance
- Part type: printed circuit board (PCB)
- Appliance family: Ecotec Exclusive
- Also known as 1388312
£310.19
£258.49 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Vaillant 0020234139 is a printed circuit board (PCB) used in Vaillant Ecotec Exclusive gas boilers. It is the main control board for the appliance, managing ignition sequencing, burner modulation, temperature regulation and the boiler's safety interlocks. The board is specific to the Ecotec Exclusive models listed below.
Signs this part needs replacing
- Boiler fails to fire or shows no response when a demand is called
- Repeated lockouts or fault codes that clear only after a power cycle
- Erratic burner modulation, or the boiler running at a fixed output
- No display, blank screen or unresponsive controls on the boiler fascia
- Visible damage to the board, such as scorching, burnt tracks or swollen components
Before you order
- Confirm the boiler model and variant against the fit list above
- Check the existing board's part number matches 0020234139
- Verify the fault is board-related rather than a sensor, fan or gas supply issue
- Isolate the appliance from the electrical supply before removing any board
Compliance
| Alternative numbers | 1388312 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT VU 256/5-7 | 41-694-02 | 41-694-02 | — | — |
| VAILLANT VUW 356/5-7 | 47-044-66 | 47-044-66 | — | — |
| VAILLANT VUW 436/5-7 | 47-044-67 | 47-044-67 | — | — |
| VAILLANT ecoTEC EXCLUSIVE 627 VU 256/5-7 (2016) | 41-694-02 | 41-694-02 | — | — |
| VAILLANT ecoTEC EXCLUSIVE 835 VUW 356/5-7 (2016) | 47-044-66 | 47-044-66 | — | — |
| VAILLANT ecoTEC EXCLUSIVE 843 VUW 436/5-7 (2016) | 47-044-67 | 47-044-67 | — | — |
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
VAILLANT appliance manual — VU 256/5-7 (GC 41-694-02), ecoTEC EXCLUSIVE 627 VU 256/5-7 (2016) (GC 41-694-02)
manualmanualVAILLANT appliance manual — VUW 356/5-7 (GC 47-044-66), VUW 436/5-7 (GC 47-044-67), ecoTEC EXCLUSIVE 835 VUW 356/5-7 (2016) (GC 47-044-66), ecoTEC EXCLUSIVE 843 VUW 436/5-7 (2016) (GC 47-044-67)
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