Vaillant Printed Circuit Board PCB 0010028086

Vaillant Printed Circuit Board PCB 0010028086

The Vaillant Printed Circuit Board (Part No. 0010028086) is the central "brain" of the boiler. This genuine OEM replacement part manages every electronic operation within the appliance, including ignition sequences, flame sensing, temperature modulation via NTC sensors, and safety limit monitoring. Because it controls the gas valve and fan speed, a fully functional PCB is vital for the safe and efficient operation of your heating system.

Key Features and Specifications
Genuine Vaillant Spare: Specifically programmed to communicate with the sensors and actuators in Vaillant’s modern boiler range, ensuring the highest level of safety and performance.

Intelligent Modulation: Uses complex algorithms to adjust the burner output based on real-time data from flow and return sensors, maximizing fuel efficiency.

Diagnostic Compatibility: Fully supports Vaillant’s digital display and eBUS communication, allowing engineers to read fault codes and perform system setup.

High-Quality Construction: Manufactured with industrial-grade components designed to withstand the heat and electrical fluctuations common within a boiler casing.

Direct Replacement: This is the current, authorized PCB for the specific models listed below.

Boiler Compatibility
This PCB is designed for specific models within the Vaillant range. It is most commonly found in:

ecoTEC Plus (Specific Versions): Primarily used in the 600 (System) and 800 (Combi) series manufactured after a specific date.

ecoFIT Pure: Used in various models of the ecoFIT range (612, 615, 618, 625, 630, 825, 830, 835).

Note: Always verify compatibility using your boiler's 7-digit serial number, as PCBs are often model-year specific.

Important Safety Note: A Printed Circuit Board must only be installed by a Gas Safe Registered engineer. The PCB controls critical safety functions; incorrect installation or using a non-genuine part can lead to dangerous malfunctions or fire risks.

Diagnostic Signs of a Failing PCB
If your boiler is experiencing the following issues, the PCB may be faulty:

No Power to Display: The screen is blank despite power reaching the boiler.

Intermittent Lockouts: The boiler shuts down frequently with varying or "ghost" fault codes.

Ignition Failure: The boiler attempts to light but fails to send the spark signal or open the gas valve.

Fan Constant Run: The fan runs continuously even when there is no demand for heat.

Essential Companion Products
To ensure the new PCB isn't damaged by external faults, engineers often check these related components:

Pressure Monitoring: Vaillant Sensor - 0020059717

Temperature Sensing: Vaillant NTC Sensor (19-3592)

Wiring Protection: Vaillant Cable/Wiring Harness - 0020135119

Control Interface: Vaillant Handle/Knob Pack - 0020010292

Specialist Support and Local Collection
PCBs are non-returnable once the static-shielding packaging is opened. Our trade counter team can assist your engineer in confirming this is the correct part for your specific serial number before purchase.

Visit our trade counter and Bathroom Showroom at 61 Fullers Road, E18 2QB for expert technical advice and immediate access to genuine Vaillant electronic spares.