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Island Spas Heaters

Island Spas heaters are matched by control system era and kilowatt rating — and “no heat” isn’t always the heater, so diagnose before you buy.

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Island Spas Heaters — Match by Era & Kilowatt Rating

Heaters for Island Spas match to your control system era and kilowatt rating — the label on your heater assembly plus your spa serial number confirms the fit. Honest truth before you order: a spa that won’t heat is sometimes a circuit board, sensor, or flow problem instead of the heater element. If your display shows error codes or the breaker trips, tell us in the form below and we’ll help you rule things out first. And when a heater does fail early, water chemistry is the usual culprit — low pH and scale kill elements years ahead of schedule.

Protect the new heater: Water Care & Sanitizing | Fresh Filters

Visit the Island Spas Resource Center for part guides and troubleshooting, or download your Island Spas Owner’s Manual.

Island Spas Heaters FAQs

Match your control system era and the kilowatt rating on your existing heater assembly’s label. Every Island Spa through 2024 runs Balboa-based systems; the 2025+ redesigns run Gecko. Send a photo of your heater label and serial number and we’ll confirm.

Not always. No-heat symptoms can come from the circuit board, a temperature sensor, or low flow from a dirty filter or tired circulation pump. A tripping breaker often is the element — but tell us your exact symptoms and error codes through the form and we’ll help you diagnose before you buy anything.

Water chemistry, almost every time. Low pH slowly eats the element; scale from high calcium insulates it until it burns out. Keeping your water balanced is the cheapest heater insurance there is — see our Island Spas water care lineup for what that takes.

✅ Not Sure Which Heater Fits? Verify Before Ordering

Island Spas part compatibility can vary by model, year, serial number, and part revision.

To help us identify the correct replacement, please send clear photos of:

  • The heater assembly label
  • The spa pack label
  • Your spa serial number sticker

EZ Hot Tub Parts can confirm fitment before you order and help you avoid costly returns.

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