Whale Printed Circuit Board For Whale Expanse Space Heater - AK1276

Whale Printed Circuit Board for Whale Expanse Space Heater – OEM Main PCB (AK1276)

The Whale Printed Circuit Board (PCB) AK1276 is a genuine OEM replacement main control board designed for use in Whale Expanse space heaters, commonly fitted in caravans, motorhomes and van conversions. As the central/control PCB, it governs key heater operations — including temperature regulation, safety monitoring and automatic functions — ensuring efficient, reliable performance from your Expanse heater.

This board is ideal for replacing a faulty PCB or servicing older installations to restore full system function and safe, dependable water and space heating on your leisure journeys.

Product Overview

• 🔌 Main PCB Replacement: Genuine Whale Expanse circuit board (Part AK1276) for water heater control.

• 📍 Part Number: AK1276 — original equipment manufacturer (OEM) part for superior fit and long-lasting performance.

• ⚙️ Controls Heater Functions: Manages heater ignition, temperature regulation, safety cut-offs and operational logic.

• 🚐 Built for Leisure Vehicles: Designed for use in caravans, motorhomes and campervans — ideal for touring comfort and dependable hot water performance.

• 🔄 Direct Replacement: Fits compatible Whale Expanse heaters without modification and restores electronic control functions.

Key Features & Benefits

• 🧠 Central Heater Control: Acts as the “brains” of the Expanse system, coordinating all operational components for safe, efficient performance.

• 🔄 Reliable OEM Quality: Genuine Whale PCB ensures better compatibility and longevity compared with aftermarket alternatives.

• 🚿 Restores System Function: Ideal when fault codes, shutdowns or erratic heater behaviour indicate PCB failure.

• 🔧 Workshop & DIY Friendly: Easy swap-in replacement for technicians servicing domestic water heater electronics.

• 🔐 Safety & Efficiency: Helps maintain safe operational logic, protecting against overheating or improper function.

Compatible Heater Models

This PCB is compatible with a range of Whale Expanse water heaters, including combined gas and electric models such as:

• WW0801OC: Internal Expanse with flue kit

• WW0801UB: Underfloor water heater (bulk)

• WW0801UC: Underfloor Expanse with flue kit

• WW0801UR: Underfloor water heater (return)

Always check your heater model before purchasing to ensure correct compatibility.

Ideal For

✔ Caravan, motorhome or campervan owners needing a replacement main PCB
✔ Servicing workshops stocking genuine Whale spare parts
✔ RV enthusiasts restoring safe and efficient heater control
✔ Replacing ECU-level electronics after failure or error conditions