5.5KW 230V Heater Assembly 26-3602-7S-K

Name: 5.5KW 230V Heater Assembly 26-3602-7S-K
Brand: HydroQuip
SKU: 26-3602-7S-K
Price: 440.91 USD
Availability: InStock

Part #: 26-3602-7S-K

$440.91

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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this heater

The HydroQuip 5.5KW 230V Heater Assembly (26-3602-7S-K) is a flow-through heating element designed for commercial-grade spas and hot tubs requiring high-output heating performance. This OEM heater assembly delivers 5,500 watts of heating power at 230 volts through a compact 3" x 15" housing, making it ideal for larger spa systems that demand consistent water temperature maintenance. The flow-through design ensures efficient heat transfer while protecting the element from dry-fire damage.

At Bubbles Supply, we guarantee this heater assembly will be an exact fit for your HydroQuip heating system, backed by our comprehensive 1-year warranty. Your replacement heater ships the same day when ordered before our cutoff time, getting your spa back to optimal heating performance fast. Before installation, always verify electrical specifications match your spa's requirements and ensure proper water flow through the heater assembly to prevent element damage.

Exact part number

26-3602-7S-K

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Also known as / Replaces

This part replaces or is interchangeable with:

flow-through heater assembly
HydroQuip heater element
spa heating element 26-3602-7S-K

Looking for an older part number? Check our supersession lookup tool

Technical specifications

Voltage: 230V

Common symptoms this part fixes

If your spa is showing any of these signs, this part is likely your fix:

Spa water not heating
Heater error code on control panel (HH or OH fault)
Spa takes too long to reach set temperature
Heater element has visible corrosion or scale buildup
Spa trips GFCI breaker due to failed heating element

Not sure if this is your problem? Try our diagnostic centre or .

Before you buy — quick checklist

Confirm your spa control system is HydroQuip and matches this heater assembly's wiring harness connector
Verify your spa runs on 230V — do not install on a 115V system
Check your existing heater housing dimensions before ordering to confirm physical fitment
Inspect flow switch and pressure switch before replacing heater — a faulty flow switch can mimic heater failure
Confirm water flow rate through your system is sufficient for a 5.5KW element to prevent dry-fire damage after installation

Reading the checklist now prevents 90% of returns. Worth the 60 seconds.

Medium — Some experience neededTypically 45-90 minutes

Warranty

1 year manufacturer warranty against defects

Covers manufacturing defects. Does not cover improper installation, normal wear, or accidental damage.

Warranty claims: warranty@bubblessupply.com

Perfect Fit Guarantee

Ordered with our help and the part doesn't fit? Contact us before installation. We'll resolve it with an exchange, replacement recommendation, or return approval.

Learn about our Perfect Fit Guarantee →

Shipping

We ship across the US and Canada. US orders ship from our US warehouse to US customers; Canadian orders ship from our Canadian warehouse to Canadian customers — no cross-border shipping, no surprise duties. In-stock orders placed before 3pm CT ship same day. Standard shipping $9.95 flat rate. Free shipping on orders over $200. Express options available at checkout.

Returns

30-day hassle-free returns on unused parts in original packaging. Contact us before returning to receive your RMA number.

Frequently asked questions

Check the Compatibility section above to confirm fitment for your spa brand and model. If your model is not listed, use our fitment selector at /pages/find-my-part or ask our parts AI for a personalized recommendation.

In-stock orders placed before 3pm CT ship the same day. You will receive tracking information by email as soon as your order ships.

We accept returns within 30 days of delivery for unused items in original packaging. Email returns@bubblessupply.com with your order number to start a return. Installed electrical parts cannot be returned for safety reasons.

Yes, all new parts come with a 1-year warranty against manufacturing defects. Warranty does not cover damage from improper installation or normal wear and tear.

Customer reviews

AI Fitment Assistant

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