🚀 New launch promo — 10% off orders over $300. Use code LAUNCH10
Bubbles Supply
Not sure which part you need? Upload a photo and we'll find it. →
YT Heater 01781-26YU 240V - Bubbles Supply

YT Heater 01781-26YU

Part #: 01781-26YU

$1348.22
In stock — ships today
Qty
🔒 Secure checkout↩️ 30-day returns✅ 1-year warranty
Add to B2B order list

Not sure this fits?

Send us a photo of your old part — we'll confirm the right replacement before you order.

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

About this heater

The YT Heater 01781-26YU is an OEM replacement heater designed for Dimension One Spas Reflections series models from 2015 and newer. This 240-volt heater delivers reliable heating performance to restore your spa's temperature control when experiencing heater failure codes or overheating issues.

Built to exact OEM specifications, this genuine Dimension One heater ensures perfect compatibility with your spa's control system. At Bubbles Supply, we guarantee an exact fit for your Reflections spa, ship same-day from our Canadian warehouse, and back every heater with a full 1-year warranty for complete peace of mind. Professional installation is recommended to ensure proper electrical connections and system integration with your spa's existing plumbing and controls.

Exact part number

01781-26YU

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • D1 Spas replacement heater
  • Dimension One heater element
  • Reflections series heater

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

Technical specifications

Voltage
240V

Common symptoms this part fixes

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

  • Spa not heating or failing to reach set temperature
  • HH (high heat) fault code displayed on topside panel
  • OH (overheat) fault code triggered repeatedly
  • Heater element reads open or shorted on multimeter
  • Spa entering persistent protection mode due to heater fault
  • Control system reporting heater failure or no-heat error

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

Before you buy — quick checklist

  • Confirm your spa is a Dimension One Reflections series model manufactured 2015 or newer
  • Verify your spa runs on 240V — do not install on a 120V system
  • Check your existing heater assembly for the part number before ordering to confirm this is an exact match
  • Inspect heater union fittings and manifold connections before removal — note any corrosion or cracked housing that may also need replacement
  • Confirm the fault code on your topside (HH or OH) — rule out a faulty high-limit sensor or pressure switch before replacing the heater element

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.

🔒 Secure checkout · SSL encrypted·🇺🇸🇨🇦 Serving the US and Canada·↩️ 30-day hassle-free returns·📦 Same-day fulfillment