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4.0KW 230V Flow-Thru Heater E2400-1001 240V - Bubbles Supply

4.0KW 230V Flow-Thru Heater E2400-1001

Part #: E2400-1001

$622.34
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Also replaces

E2400-1001
1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this heater

This 4.0KW 230V flow-through heater assembly is an OEM replacement part designed for Leisure Bay spa systems. Built with durable stainless steel construction, this genuine heater element delivers reliable 4000-watt heating performance at 230 volts, ensuring your spa maintains optimal water temperature efficiently and safely.

At Bubbles Supply, we guarantee this heater is an exact fit for your Leisure Bay spa, backed by our comprehensive 1-year warranty and same-day shipping on in-stock orders. The flow-through design integrates seamlessly into your existing plumbing system for straightforward replacement. Always verify your spa's voltage requirements and turn off power at the breaker before installation – this heater is specifically engineered for 230V systems and proper electrical connections are essential for safe operation.

Exact part number

E2400-1001

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • 4.0KW heater element
  • 4000W spa heater
  • E2400-1001
  • flow-through heater assembly
  • inline spa heater

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

Technical specifications

Voltage
230V
Port type
Flow-through (inline)

Plumbing notes

  • Port type: Flow-through (inline)

Need help measuring? Email hello@bubblessupply.com with a photo of your existing plumbing.

Common symptoms this part fixes

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

  • Spa water not heating
  • Spa displays HH (high heat) or OH (overheat) fault code
  • Heater element burned out or failed
  • Spa trips GFCI breaker repeatedly
  • Water temperature drops and won't recover
  • Visible corrosion or scale buildup on existing heater tube

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

Before you buy — quick checklist

  • Confirm your spa is a Leisure Bay system and that E2400-1001 is listed on your existing heater label
  • Verify your spa runs on 230V — do not install on a 240V system without confirming compatibility
  • Inspect existing heater unions and plumbing fittings before ordering to confirm they will mate with this assembly
  • Check for any underlying flow issues (clogged filter, closed valves, air lock) that may have caused the original heater to fail — replacing the heater without fixing root cause will damage the new unit
  • Confirm your control board and high-limit sensor are functioning — a faulty sensor can cause repeated heater failure

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

Install difficulty: 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

Tell us your spa model and we will confirm this part fits before you buy.

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