🚀 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. →
RS101 Flow-Thru Heater 1.0/4.0KW 230V - Bubbles Supply

RS101 Flow-Thru Heater 1.0/4.0KW

Part #: 403471

$365.08
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 RS101 Flow-Thru Heater is a genuine OEM replacement heating assembly designed for Dreammaker Spas manufactured between 2013-2017. This Balboa-manufactured heater delivers reliable performance with dual power options of 1.0KW and 4.0KW at 230 volts, making it suitable for various spa configurations and heating requirements.

Built to original equipment specifications, this heater assembly resolves common heating issues including HH (high limit) and OH (overheat) error codes that can leave your spa unusable. At Bubbles Supply, we guarantee an exact fit for your Dreammaker system and ship the same day to minimize your downtime. Every RS101 heater comes with our comprehensive 1-year warranty for complete peace of mind. Always verify your existing heater's part number and electrical specifications match before installation, and consider professional installation for electrical safety compliance.

Exact part number

403471

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • Balboa heater assembly
  • flow-through heater
  • inline spa heater
  • RS101 heater

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:

  • HH (high limit) error code on control panel
  • OH (overheat) error code on control panel
  • Spa not heating or heating very slowly
  • Heater element failure — spa runs but water stays cold
  • Frequent nuisance tripping of high limit sensor
  • Spa enters persistent fault mode and won't reset

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

Before you buy — quick checklist

  • Confirm your spa was manufactured between 2013–2017 — this is an OEM part for that production window only
  • Verify your existing heater is rated 230V before ordering — do not install on a 115V system
  • Match the part number on your existing heater assembly to RS101 before purchasing
  • Check whether your HH or OH error is caused by the heater assembly vs. a faulty sensor or flow issue — replacing the heater won't fix a sensor or circulation problem
  • Ensure water flow to the heater is adequate before installation — low flow can damage the new element immediately

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