🚀 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. →
30-01395-K

IQ2000 Hi-Limit Sensor 30-01395-K

Part #: 30-01395-K

$16.83
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 sensor

The IQ2000 Hi-Limit Sensor 30-01395-K is a critical safety component for HydroQuip heating systems in residential and commercial spas. This OEM sensor monitors water temperature and automatically shuts down the heater if temperatures exceed safe operating limits, preventing overheating damage to your spa equipment and ensuring bather safety.

Engineered to HydroQuip's exact specifications, this genuine replacement sensor delivers reliable performance and seamless integration with IQ2000 control systems. At Bubbles Supply, we guarantee an exact fit for your spa with same-day shipping and back every sensor with our comprehensive 1-year warranty. Professional installation is recommended to ensure proper sensor placement and electrical connections for optimal safety performance.

Exact part number

30-01395-K

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • Hi-limit sensor
  • high-limit sensor
  • IQ2000 temperature sensor
  • overheat sensor
  • thermal cutoff sensor

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

Common symptoms this part fixes

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

  • Spa heater shuts off unexpectedly
  • OH or HH fault code displayed on control panel
  • Heater won't heat water despite correct settings
  • Spa entering overheat lockout mode without actual overheating
  • Control system not reading accurate water temperature
  • Heater cycling on and off erratically

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

Before you buy — quick checklist

  • Confirm your control system is a HydroQuip IQ2000 — check the label on your equipment pack or control board
  • Verify the OEM part number on your existing sensor matches 30-01395-K before ordering
  • Check whether the fault code is HH or OH — both point to hi-limit sensor failure but rule out actual overheating first
  • Inspect the sensor well or probe housing for corrosion or blockage before installing the new sensor
  • Ensure water flow is adequate — a dirty filter or closed valve can trigger hi-limit faults even with a good sensor

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

Install difficulty: Medium — Some experience neededTypically 30–60 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