As the air turns crisp and the desire to enjoy your backyard oasis lingers, nothing dampens the mood quite like a chilly dip. Ensuring your swimming pool is always inviting is key to extending those precious moments of relaxation, whether it’s a cool spring evening or a breezy autumn afternoon.
A reliable swimming pool heater is your secret weapon, but even the best systems need occasional TLC. From essential swimming pool heater replacement parts to specific heat pump pool heater components, keeping your unit running efficiently means more time enjoying your investment and less time worrying about repairs.
Investing in quality pool heater repair parts not only saves you money in the long run but also ensures consistent warmth, transforming your backyard into a year-round sanctuary. We’ve curated a selection of top-notch components to help you maintain the perfect water temperature and maximize your swimming season.
Key Takeaways
- Maintain your pool heater with essential replacement parts like control boards and ignitors for optimal performance and warmth.
- Ensure correct model compatibility for Hayward H-Series and Pentair MasterTemp heaters to avoid malfunction and damage.
- Key components for pool heater repair include flue sensors, heat exchanger assemblies, and thermistor kits.
- Safety fuses for Raypak heaters and membrane pads for Pentair MasterTemp are crucial for reliable operation.
- Proper installation of replacement parts ensures continued comfort and efficient heating for your pool or spa.
- Regular maintenance and part replacement for pool heaters prevent costly repairs and extend system lifespan.
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Product | FDXLICB1930 FD Integrated Control Board Replacement Kit for Universal Hayward H-Series Low Nox Pool Heater, Suitable for H150FDN/FDP, H200FDN/FDP H250FDN/FDP, H300FDN/FDP, H350FDN/FDP, H400FDN/FDP Sunluway | Funmit 42002-0024S Stack Flue Sensor Replacement for Pentair Sta-Rite MasterTemp Max-E-Therm Pool and Spa Heater Electrical System SR200 SR333 SR400 Funmit | Hayward FDXLHXA1400 Heat Exchanger Assembly Replacement for Hayward H400FD Universal H-Series Low Nox Pool Heater Hayward |
Link | Check Price on Amazon | Check Price on Amazon | Check Price on Amazon |
Material | Premium-grade material | Stainless Steel | |
Size/Capacity | 2Inch X 2 1/2 Inch | ||
Key Features |
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Depth/Height | |||
Best For | Replacing old control boards on Hayward H-Series heaters. | Pentair MasterTemp and Sta-Rite Max-E-Therm heaters. | Hayward H400FD Universal H-Series Low Nox Pool Heater. |
1. Pool Heater Control Board Replacement




A well-maintained patio area feels so inviting on a cool evening. Consider discreetly placing this crucial component near your pool equipment enclosure, perhaps tucked behind a low border of fragrant lavender and softened with smooth river stones. This arrangement not only keeps the functionality out of immediate sight but also brings a sense of calm order to your waterside haven.
This embrace of modern simplicity creates a serene poolside atmosphere, focusing on the quiet hum of efficient operation rather than visible clutter. It transforms a potentially utilitarian space into a seamless extension of your relaxation zone, allowing the soothing sounds of water to take center stage. Imagine the peace of mind knowing everything is running smoothly, contributing to the overall tranquility of your outdoor escape.
Pros
This control board replacement kit offers a direct solution for restoring the proper function of your compatible Hayward H-Series Low NOx pool heater, ensuring continued comfort and enjoyment of your pool. It’s designed for straightforward integration, simplifying the repair process and getting your system back online efficiently.
Cons
Careful attention to your specific heater model is paramount, as this component is designed for a particular range of Universal Hayward H-Series Low NOx heaters, and incorrect installation or use with incompatible models could lead to malfunction or damage.
Best for: Restoring optimal performance to compatible Hayward H-Series Low NOx pool heaters.
View this product’s details and availability on Amazon.
2. Pool Heater Flue Sensor Fix




A shaded patio provides a welcome respite on a warm afternoon. Consider integrating this essential component discreetly beside your outdoor kitchen, framed by the silvery foliage of a low ornamental grass and anchored by weathered flagstone. This placement maintains an uncluttered aesthetic, allowing the gentle rustling of leaves to create a serene ambiance.
This mindful approach embraces a modern simplicity, transforming a functional necessity into a harmonious element of your alfresco living space. It allows the focus to remain on the enjoyment of your garden, fostering a sense of calm and effortless elegance. Experience the quiet efficiency that contributes to the overall peaceful atmosphere of your outdoor retreat.
Pros
This replacement sensor offers a direct solution for restoring proper operation to compatible Pentair Sta-Rite MasterTemp Max-E-Therm pool and spa heaters, ensuring your system functions efficiently for continued comfort.
Cons
It is crucial to verify compatibility with your specific heater model, as this component is designed for a particular range of units and incorrect installation could lead to operational issues.
Best for: Restoring optimal performance to compatible Pentair Sta-Rite MasterTemp Max-E-Therm pool and spa heaters.
View this product’s details and availability on Amazon.
3. Pool Heater Heat Exchanger Assembly

A sunny poolside area needs careful planning for ultimate comfort and style.
This essential component can be gracefully integrated near your pool equipment, perhaps partially screened by a cluster of feathery ornamental grasses and softened by the inclusion of smooth, rounded river stones. This thoughtful placement helps to visually soften its utilitarian nature, drawing the eye towards the calming textures of the surrounding landscape and fostering an atmosphere of serene simplicity. The gentle rustle of the grasses adds a subtle auditory layer, creating a peaceful haven where you can truly unwind.
Pros
This heat exchanger assembly serves as a vital replacement part, ensuring your Hayward H400FD Universal H-Series Low NOx pool heater operates efficiently. It’s designed for direct integration, simplifying the process of restoring optimal performance to your heating system for continued enjoyment of your pool.
Cons
It is essential to confirm this specific model is compatible with your existing Hayward H400FD Universal H-Series Low NOx pool heater, as using it with other units may lead to improper function or damage.
Best for: Restoring functionality to compatible Hayward H400FD Universal H-Series Low NOx pool heaters.
4. Pool Heater Ignitor for Warmth




A secluded garden path feels so tranquil on a summer evening. Consider integrating this critical component beside your pool’s filtration system, framed by a low border of creeping thyme and anchored by rustic pea gravel. This intentional styling ensures the utilitarian aspects of your pool area recede into the background, allowing the subtle fragrance of the herbs to create a calming sensory experience.
This arrangement embraces a modern simplicity, transforming a functional necessity into a harmonious extension of your outdoor living space. It allows the focus to remain on the enjoyment of your garden and the soothing sounds of water, fostering a sense of effortless elegance and pure relaxation. Experience the quiet efficiency that contributes to the overall peaceful atmosphere of your outdoor retreat.
Pros
This ignitor replacement offers a direct solution for restoring proper ignition function to compatible Hayward Universal H-Series pool heaters, ensuring continued warmth and enjoyment of your pool.
Cons
It is crucial to verify compatibility with your specific Hayward heater model, as this component is designed for particular units and incorrect installation could lead to operational issues.
Best for: Restoring ignition function to compatible Hayward Universal H-Series pool heaters.
View this product’s details and availability on Amazon.
5. Pool Heater Thermistor Replacement Kit




A tranquil garden patio can elevate your outdoor living. Consider integrating this essential component near your pool equipment enclosure, partially framed by the delicate texture of ornamental grasses and softened with smooth river stones. This placement helps to visually recede its utilitarian purpose, drawing the eye towards the natural beauty of the surrounding plants and fostering an atmosphere of serene simplicity.
This mindful approach embraces modern simplicity, transforming a functional necessity into a harmonious element of your alfresco space. It allows the focus to remain on the enjoyment of your garden, fostering a sense of calm and effortless elegance. Experience the quiet efficiency that contributes to the overall peaceful atmosphere of your outdoor retreat.
Pros
This thermistor replacement kit offers a direct solution for restoring the proper functioning of compatible Pentair Sta-Rite MasterTemp and Max-E-Therm pool and spa heaters, ensuring your system operates efficiently.
Cons
It is crucial to verify precise compatibility with your specific pool heater model, as this component is designed for a particular range of units and incorrect installation could lead to operational issues.
Best for: Restoring optimal temperature sensing for compatible Pentair Sta-Rite MasterTemp & Max-E-Therm pool and spa heaters.
View this product’s details and availability on Amazon.
6. Hot Tub Ignitor for Jandy Spas
A serene garden path invites quiet contemplation during twilight hours. Consider integrating this essential component adjacent to your pool’s utility hub, softened by the lush expanse of ornamental grasses and a scattering of weathered granite chunks. This intentional styling helps its functional presence blend seamlessly with the natural surroundings, allowing the gentle sway of the grasses to create a calming visual rhythm.
This mindful approach embraces a modern simplicity, transforming a necessary piece into a harmonious extension of your outdoor living space. It ensures the focus remains on the serene beauty of your garden and the soothing sounds of water, fostering an atmosphere of effortless elegance and pure relaxation. Experience the quiet efficiency that contributes to the overall peaceful atmosphere of your outdoor retreat.
Pros
This ignitor replacement offers a direct solution for restoring proper ignition function to compatible Jandy JXi pool and spa heaters, ensuring continued warmth and enjoyment of your pool.
Cons
It is crucial to verify compatibility with your specific Jandy JXi heater model, as this component is designed for particular units and incorrect installation could lead to operational issues.
Best for: Restoring ignition function to compatible Jandy JXi pool and spa heaters.
View this product’s details and availability on Amazon.
7. Spa Heater Element for Pools




A secluded garden path feels so tranquil on a summer evening. Consider integrating this critical component beside your pool’s filtration system, framed by a low border of creeping thyme and anchored by rustic pea gravel. This intentional styling ensures the utilitarian aspects of your pool area recede into the background, allowing the subtle fragrance of the herbs to create a calming sensory experience.
This arrangement embraces a modern simplicity, transforming a functional necessity into a harmonious extension of your outdoor living space. It allows the focus to remain on the enjoyment of your garden and the soothing sounds of water, fostering a sense of effortless elegance and pure relaxation. Experience the quiet efficiency that contributes to the overall peaceful atmosphere of your outdoor retreat.
Pros
This titanium heating element provides a robust and efficient solution for maintaining optimal water temperatures in your hot tub or swimming pool. Its durable construction is designed for reliable, long-term performance, ensuring consistent warmth for your aquatic enjoyment.
Cons
Careful verification of your spa’s electrical system voltage and the heater’s wattage is essential for safe and effective operation. Ensuring proper installation by a qualified technician is recommended to avoid any potential issues or damage.
Best for: Replacing or upgrading heating elements in compatible Balboa spa heaters for consistent hot tub or pool warmth.
View this product’s details and availability on Amazon.
8. Pool Heater Safety Fuse Kit




A quiet garden corner can transform into a serene retreat. Consider integrating this essential component near your pool equipment, partially veiled by low-growing ornamental grasses and softened with smooth river stones. This deliberate styling allows its function to blend seamlessly with the natural textures, inviting a sense of peaceful order.
This approach embraces a modern simplicity, transforming a utilitarian necessity into a harmonious extension of your outdoor living space. It allows the focus to remain on the enjoyment of your garden and the soothing sounds of water, fostering an atmosphere of effortless elegance and pure relaxation. Experience the quiet efficiency that contributes to the overall tranquil ambiance of your outdoor haven.
Pros
This safety fuse kit offers a direct solution for replacing a critical component, ensuring your compatible Raypak pool heater operates safely. Its function is vital for maintaining the smooth and reliable performance of your heating system.
Cons
It is crucial to verify precise compatibility with your specific Raypak heater model, as this component is designed for particular units and incorrect installation could lead to operational issues or compromise safety.
Best for: Restoring the safety functionality for compatible Raypak pool heaters.
View this product’s details and availability on Amazon.
9. Heater Membrane Pad Replacement



A sun-drenched garden corner offers inviting warmth on a breezy afternoon. Consider integrating this essential component near your pool equipment, partially veiled by the feathery texture of ornamental grasses and softened by smooth river stones. This deliberate styling allows its function to blend seamlessly with the natural textures, inviting a sense of peaceful order.
This mindful approach embraces modern simplicity, transforming a utilitarian necessity into a harmonious extension of your outdoor living space. It allows the focus to remain on the enjoyment of your garden and the soothing sounds of water, fostering an atmosphere of effortless elegance and pure relaxation. Experience the quiet efficiency that contributes to the overall tranquil ambiance of your outdoor haven.
Pros
This membrane pad replacement offers a direct solution for restoring the proper function of your Pentair MasterTemp pool and spa heater’s electrical system, ensuring continued comfort and enjoyment of your pool.
Cons
It is crucial to verify precise compatibility with your specific Pentair MasterTemp heater model, as this component is designed for particular units and incorrect installation could lead to operational issues.
Best for: Restoring the electrical system’s functionality for compatible Pentair MasterTemp pool and spa heaters.
View this product’s details and availability on Amazon.
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A secluded garden path feels so tranquil on a summer evening. Consider integrating this critical component beside your pool’s filtration system, framed by a low border of creeping thyme and anchored by rustic pea gravel. This intentional styling ensures the utilitarian aspects of your pool area recede into the background, allowing the subtle fragrance of the herbs to create a calming sensory experience.
This arrangement embraces a modern simplicity, transforming a functional necessity into a harmonious extension of your outdoor living space. It allows the focus to remain on the enjoyment of your garden and the soothing sounds of water, fostering a sense of effortless elegance and pure relaxation. Experience the quiet efficiency that contributes to the overall peaceful atmosphere of your outdoor retreat.
Pros
This ignitor replacement offers a direct solution for restoring proper ignition function to compatible Hayward Universal H-Series pool heaters, ensuring continued warmth and enjoyment of your pool.
Cons
It is crucial to verify compatibility with your specific Hayward heater model, as this component is designed for particular units and incorrect installation could lead to operational issues.
Best for: Restoring ignition function to compatible Hayward Universal H-Series pool heaters.
View this product’s details and availability on Amazon.
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FAQs
Q: What are the most common replacement parts for swimming pool heaters?
Common replacement parts for swimming pool heaters include ignitors, thermocouples, gas valves, thermostats, and heat exchangers. These components are vital for the safe and efficient operation of your swimming pool heater.
Q: How do I know if my swimming pool heater part needs replacing?
Signs that a swimming pool heater part needs replacing include inconsistent heating, failure to ignite, unusual noises, or error codes displayed on the unit. Regularly inspecting your swimming pool heater can help identify issues early.
Q: Can I replace swimming pool heater parts myself?
Some swimming pool heater parts, like ignitors or thermocouples, can be replaced by experienced DIYers. However, components involving gas or high voltage connections often require a qualified technician for safe and correct installation.
Q: What factors affect the lifespan of swimming pool heater parts?
The lifespan of swimming pool heater parts is affected by usage frequency, water chemistry, environmental conditions, and regular maintenance. Using manufacturer-recommended parts and adhering to maintenance schedules can extend their life.
Q: How important is water chemistry for swimming pool heater parts?
Maintaining proper water chemistry is crucial for the longevity of swimming pool heater parts, particularly the heat exchanger. Imbalanced water can lead to corrosion and scale buildup, damaging components over time.
Q: Where are the best places to purchase swimming pool heater parts?
The best places to purchase swimming pool heater parts are authorized dealers, reputable online retailers specializing in pool equipment, and sometimes directly from the swimming pool heater manufacturer.
Top 10 Swimming Pool Heater Parts










Conclusion
Maintaining your pool heater’s optimal performance is crucial for consistent water temperature and enjoyable swimming. This guide highlights key replacement parts for Hayward, Pentair, and Jandy heaters, focusing on components like control boards, sensors, ignitors, and heat exchangers. Choosing the correct part ensures efficient operation and extends the lifespan of your pool heating system.
Recommended Products
- Pool Heater Control Board Replacement for compatible Hayward H-Series Low NOx heaters, ensuring efficient system restoration.
- Pool Heater Flue Sensor Fix for Pentair Sta-Rite MasterTemp Max-E-Therm units, restoring efficient operation.
- Pool Heater Heat Exchanger Assembly for Hayward H400FD Universal H-Series, vital for efficient heating.

Angelina leads the editorial desk at Live Green Gardens, blending practical plant care, hands-on product testing, and approachable outdoor styling. She focuses on step-by-step how-tos, buyer’s guides, and small-space makeovers that work in real life and real budgets. When she’s not comparing pruning shears or setting up a drip kit, you’ll find her creating cozy corners with planters, solar lights, and pollinator-friendly picks—always with clear pros/cons and safety notes so you can buy once and garden happy.