Vaillant Ecotec VU 466/4-5 PCB 0020046177 – Refurbished Advance Replacement

Fault codes, loss of ignition, or intermittent shutdowns in a Vaillant Ecotec VU boiler are a common sign of a failing main PCB. This board manages heating cycles and sensor communication — once it starts to fail, the boiler cannot maintain stable, predictable operation.

The Vaillant Ecotec VU 466/4-5 PCB (Part No. 0020046177) is the refurbished advance-replacement board, restoring reliable control across the Ecotec VU GB 466 and VU GB 656 ranges.

Compatible Boiler Models

Tested. Reliable. Warranted.

Every refurbished Vaillant PCB we supply is tested to confirm correct sensor communication and stable firing before dispatch. Supplied with a full 12-month warranty.

Delivery & Returns

Orders placed before 3:00 PM (Mon–Fri) are dispatched the same working day. Standard and next-day delivery available at checkout, including Saturday delivery for an additional charge. Returns accepted within 30 days in original unused condition.

Note: Please confirm that part number 0020046177 matches your existing board and check your boiler's GC number before ordering. Installation must be carried out by a Gas Safe registered engineer to ensure safety compliance and warranty validity.