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Tecmark Pressure Switch 3029P - Bubbles Supply

Tecmark Pressure Switch 3029P

Part #: 3029P

$51.19
In stock — ships today
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this pressure switch

The Tecmark 3029P is a single-pole, single-throw (SPST) pressure switch designed for spa and hot tub applications requiring precise water flow monitoring. This 25-amp rated switch activates at 1-5 PSI pressure differential and features standard 1/8" NPT threading for seamless integration into most spa plumbing systems.

Built to OEM specifications, this genuine Tecmark pressure switch helps resolve common spa issues including heater problems (HH), ice mode activation (ICE), and overheating conditions (OH) by ensuring your system only operates when proper water flow is detected. At Bubbles Supply, we guarantee an exact fit for your spa with same-day shipping and back every pressure switch with our comprehensive 1-year warranty. Verify your existing switch's pressure rating and thread size before installation to ensure compatibility with your spa's control system.

Exact part number

3029P

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Also known as / Replaces

This part replaces or is interchangeable with:

  • flow pressure switch
  • hot tub pressure switch
  • spa water flow switch
  • Tecmark 3029P pressure switch

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

Technical specifications

Amperage
25A
Port type
1/8" NPT

Plumbing notes

  • Port type: 1/8" NPT

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:

  • Heater won't fire / HH error code on display
  • Spa enters ICE mode with water flowing normally
  • OH overheat fault triggered without actual overheating
  • Heater cycles off prematurely under normal flow
  • Spa control board not detecting water flow
  • System shuts down at startup before water circulates

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

Before you buy — quick checklist

  • Confirm your existing pressure switch is rated 1–5 PSI — higher or lower activation ranges require a different switch
  • Verify your existing switch uses 1/8" NPT thread — check the port on the heater manifold or plumbing tee
  • Check whether your control system requires SPST (single-pole, single-throw) — some systems require SPDT
  • Note the wire terminal style on your current switch to confirm connector compatibility
  • Confirm the 25A rating meets or exceeds your spa control board's requirement

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

Install difficulty: Easy — DIY-friendlyTypically 15–30 minutes

What's in the box

  • Tecmark 3029P pressure switch
  • Pre-installed 1/8" NPT male fitting
  • Spade terminals for wire connection

If your order is missing any items listed above, contact hello@bubblessupply.com within 48 hours of delivery.

Warranty

1 year 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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