WHALE Expanse PCB Gas Only Main
236.00£ Original price was: 236.00£.215.00£Current price is: 215.00£.
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Product Description
WHALE Expanse PCB Gas Only Main – Reliable Gas Heater Control Board
Overview
The WHALE Expanse PCB Gas Only Main is a high-quality replacement control board designed specifically for gas-only WHALE Expanse water and space heaters. Engineered for marine, caravan, and motorhome applications, this PCB ensures efficient, safe, and reliable operation of gas heating systems. Ideal for UK boats, caravans, and mobile homes, it provides consistent hot water and space heating, making it an essential component for off-grid and mobile living environments.
Key Features & Benefits
- Gas-Only Heater Control: Specifically designed to control gas WHALE Expanse heaters, offering reliable and precise operation.
- Durable Construction: Built to withstand vibration, moisture, and mobile environments, providing long-lasting performance.
- Reliable Performance: Ensures stable operation of water and space heaters, maintaining consistent heat output.
- Easy Installation: Compatible with a wide range of WHALE Expanse gas heater models, allowing fast replacement and minimal downtime.
- Energy-Efficient Operation: Optimises gas usage for cost-effective heating while maintaining performance.
- UK Safety Compliance: Fully compliant with UK marine, caravan, and motorhome safety standards for secure operation.
- Compact & Space-Saving Design: Fits neatly into the heater unit without occupying excessive space.
Why Choose WHALE Expanse PCB Gas Only Main?
The WHALE Expanse PCB Gas Only Main is the ideal replacement part for UK customers looking for a durable, reliable, and energy-efficient gas heater control solution. It guarantees consistent hot water and space heating, making it essential for marine, caravan, and motorhome applications, ensuring peace of mind on every journey.
Product Specification
Product Name: Whale Expanse PCB – Gas Only Main
Product Type: Main Control Printed Circuit Board (PCB) for Gas-Only Water and Space Heating Systems
Function:
- Serves as the central control unit for Whale Expanse gas-only water heaters and underfloor or space heating systems
- Regulates gas burner operation, flame detection, and safety mechanisms
- Interfaces with thermostats, flame sensors, gas valves, and control panels to ensure safe and efficient heating
Key Features:
- Designed specifically for gas-only Whale Expanse heaters
- Manages ignition sequence and flame monitoring
- Provides automatic gas shut-off in case of flame failure or fault detection
- Diagnostic LED indicators for fault codes and operational status
- Compact PCB design suitable for integration or replacement within Whale Expanse heaters
- Compatible with Whale Expanse underfloor and water heating units
Gas Control Specifications:
- Fuel Type: LPG / Propane
- Gas Pressure: Designed for mobile system standard (typically 30 mbar)
- Ignition: Electronic ignition controlled via PCB
- Flame Safety: Thermocouple flame failure detection with automatic gas shut-off
- Gas Flow Control: Regulates flow to burner according to thermostat and demand
Safety Features:
- Flame failure detection
- Over-temperature cut-out when integrated with thermostats
- Low-water or dry-run protection if sensors are integrated
- Short-circuit and overcurrent protection for PCB circuits
- CE certified for mobile and marine gas appliance safety
Construction & Environmental Specifications:
- PCB Substrate: Flame-retardant FR4 or equivalent
- Components: High-grade for vibration and shock resistance suitable for mobile and marine environments
- Optional conformal coating for moisture and corrosion protection
- Operating Temperature: –20°C to +70°C
- Compact and lightweight design for easy mounting inside gas heater units
Installation Requirements:
- Must be installed by a qualified LPG technician or authorized service agent
- Connect to gas valve, ignition system, flame sensor, and control panel according to manufacturer wiring diagrams
- Mount inside heater enclosure, away from direct heat or moisture sources
- Ensure compliance with mobile gas safety regulations and manufacturer guidelines
Applications:
- Whale Expanse gas-only underfloor and water heaters
- Mobile heating systems in caravans, motorhomes, boats, and off-grid installations
- Replacement PCB for existing Whale Expanse gas heaters
Compliance:
- CE certified
- EN 60335-2-102 for mobile gas appliances
- Complies with LPG safety standards for mobile and marine use
Dimensions (approx.):
- Height: [Insert dimension]
- Width: [Insert dimension]
- Depth: [Insert dimension]
Weight: ~[Insert weight]
Warranty: Manufacturer warranty applies; check with supplier for details
Delivery and Shipping
- At Prime Caravan Breakers we are committed to providing excellent Customer Service by sending orders as quickly as possible. Our stock levels are live and shown against each product.
- We use Trans Direct Shipping to provide our Customers with the most cost effective and suitable Courier service depending on their location.
- All orders are picked and packed in our Somerton Warehouse. We endeavour to use your nominated Courier but sometimes issues are beyond our control. If Courier pick up is going to be delayed or an item doesn’t get picked up, we will use our discretion and sometimes use UK Post and other methods to ensure your order reaches you quickly.Â
- Please ensure you enter the Correct Address. Should your parcel be returned to Prime Caravan Breakers the customer will be liable for any costs to resend.
- If you are local we offer pick up from our Somerton, Victoria factory. Over counter sales are welcomed from our fully stocked shop.
Customer Reviews
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Ordered a 200w solar panel kit. The price was unbeatable. The wiring kit included was high quality and the installation guide was very clear. It has transformed our off-grid capabilities. Highly recommended.
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We fully refurbished our interior using their range of soft furnishings and cupboard handles. The quality of the products rivaled high-end motorhomes. Excellent value for money.
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Don't buy your hitch locks and wheel clamps anywhere else. The quality is second to none. I feel so much safer leaving my van now. Plus, their guide on 'How to fit' is very helpful.
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I was struggling to find a specific battery charger. Someone on a forum suggested these guys. They had it in stock. Great price and works like a dream. I’m a customer for life.
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We bought a new porch awning from here and it is superb. The material is heavy-duty and feels like it will last for years. They even included some extra pegs. A brilliant company to deal with.
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Needed a new gas regulator quickly before a trip. This site had the exact one. It came next day. What more could you ask for? Highly professional.
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Ordered a new water pump and filter on Monday, arrived Tuesday. That’s what I call service. You can tell they actually use this gear themselves because their advice is practical and down to earth.
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As a full-timer, I rely heavily on my gear. This site is a lifesaver. Their parts finder tool is genius, and the security locks I bought are top-notch. Fast shipping to rural Scotland too! 10/10.
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Caravan Awning
I’ve been using these guys for years. They are the only place I trust for genuine parts. When my motor mover broke in peak season, they had the replacement part in stock and talked me through the install over the phone. Unbelievable service.


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