How do I know if this PCB is for my boiler?

Verify the reference 077978 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part.

The PCB controls the ignition, modulation, sensor readings, and safety features of the boiler.

Is the boiler not igniting, locking out, or is the control board unresponsive?

After ruling out mains voltage, fuse, and connectors, a damaged PCB causes lockouts, blackouts, or erratic display. Repair the external cause before installing the new one.

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

After installation, a technician must adjust the service parameters (type of gas, power settings) and check combustion and safety features.

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.

RefurbishedVaillant PCBs (control boards)

Vaillant Turbomax PRO 24E VUW 242 2 3 Display Cover Ref. 077978

Name: Vaillant Turbomax PRO 24E VUW 242 2 3 Display Cover Ref. 077978
Brand: Vaillant
SKU: CDPCVNT
Price: 30 EUR
Availability: InStock

30 €VAT includedIn stock · 1 unit

PCB (control board): refurbished spare part that controls the ignition, modulation, and safety features of the boiler. Useful if the boiler does not ignite, locks out, or the display is unresponsive. Compatible with VUW 242/3, VUW 242/2-3, VUW 242/2-3 R1 (ref. 077978). Includes a one-year warranty and delivery within 2–4 working days in the EU.

Consult via WhatsApp

Not sure if it's your part? Send us a photo of the screen printing via WhatsApp and we'll confirm compatibility before you purchase.

Delivery in 2–4 working days

1-year warranty

14-day return

Technical support

Key Data

Reference: 077978
Brand: Vaillant
Type of part: PCBs (control boards)
Available units: 1 unit in stock
Status: Refurbished
Warranty: 1 year
Shipping: 2–4 working days (EU)
Return: 14 days

The same part (ref. 077978) equips these models. Verified compatibility; check the reference before purchasing.

Turbomax Pro 24E (VUW 242)

VUW 242/3
VUW 242/2-3
VUW 242/2-3 R1
VUW 242/2-3 R2
VUW 242/2-3 R3

Turbomax Pro 28E (VUW 282)

VUW 282/3
VUW 282/2-3
VUW 282/2-3 R1
VUW 282/2-3 R2
VUW 282/2-3 R3

How do I know if this PCB is for my boiler?: Verify the reference 077978 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part.
What is it used for?: The PCB controls the ignition, modulation, sensor readings, and safety features of the boiler.
Is the boiler not igniting, locking out, or is the control board unresponsive?: After ruling out mains voltage, fuse, and connectors, a damaged PCB causes lockouts, blackouts, or erratic display. Repair the external cause before installing the new one.
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: After installation, a technician must adjust the service parameters (type of gas, power settings) and check combustion and safety features.
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.