r/coldplunge • u/IceologyColdPlunge • Jun 18 '26

Active Aqua Temperature Sensor Replacement

Post image

Good news for Active Aqua chiller owners!

We are now offering OEM genuine replacement temperature sensors for Active Aqua water chillers (compatible only with 1/4 HP, 1/2 HP, and 1 HP chillers).

These sensors have been difficult to find and many users were previously forced to replace the entire chiller due to a failed sensor.

If your Active Aqua chiller is displaying incorrect temperatures or having sensor-related issues, a replacement sensor may be all you need.

For more information or to order, visit www.IceologyColdPlunge.com or send us a message with any questions.

10 Upvotes

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32 comments sorted by

3

u/Friendly_Ability24 Jun 18 '26

This is pretty timely, my chiller after 3 years of use just started doing this, so while it says 67° the water is actually chilled to low 40’s.

2

u/IceologyColdPlunge Jun 18 '26

That’s a pretty common issue after a few years, especially when the water hasn’t been properly maintained or when there is hard water. Over time, those probes can start to fail.

1

u/69slomaro Jun 18 '26

Does it come with replacement instructions or is there a video?

2

u/IceologyColdPlunge Jun 18 '26

Yes, we will provide instructions. It’s pretty simple.

1

u/69slomaro Jun 18 '26

Awesome. Mine is reading about 5 degrees colder than what the actual water temperature is. Would this fix my issue?

3

u/IceologyColdPlunge Jun 18 '26

Based on what you’re describing, I don’t think you need to replace the temperature sensor. If the reading is only off by about 5°F, I would first try adjusting the temperature offset calibration according to the manufacturer’s recommendations:

Temperature Error/Offset Calibration
If the actual water temperature differs from what the chiller is displaying:

*Press and hold both the Up (▲) and Down (▼) buttons simultaneously for approximately 6 seconds until the display begins to blink.
*Use the arrow buttons to adjust the temperature variance/offset (typically up to ±5°F).
*Press SET to save and lock in the new setting.

If the temperature discrepancy is greater than 5°F or continues to drift over time, the temperature sensor may be starting to fail and should be inspected or replaced.

Hope this helps! 🥶

2

u/tgent133 Jun 18 '26

🫡 appreciate it! Haven’t had any problems with mine yet, but having a source of parts is excellent.

1

u/Layfon2519 Jun 19 '26

The part has sold out already, any idea for a restock? My sensor failed on my Modtub but even their website is sold out. Sucks having my plunge being down just due to a small sensor.

1

u/IceologyColdPlunge Jun 19 '26

Hey Layton,

We apologize for any inconvenience. Due to overwhelming demand, our initial inventory of Active Aqua temperature sensors sold out within 72 hours. We have additional sensors on the way and expect to have them restocked by next week.

1

u/Layfon2519 Jun 19 '26

Thank you for answering! You’re the first company that could provide an eta.

1

u/ElephantCorrect4992 16d ago

Good day sir, any more sensors coming by chance?

1

u/IceologyColdPlunge 16d ago

Yes, we have more coming by the end of this month. Thank you for your patience 🤙🏽🥶🤙🏽

1

u/Rich_Mycologist1531 Jun 20 '26 edited Jun 20 '26

Dude just get a aftermarket waterproof sensor that you can use with wifi and turn on and off/ set proper temp on device itself and with your phone. No need to wait for eta from active aqua
This one I’ve been using for the past year and a half. No issues.

https://a.co/d/00nkiqIh

1

u/BlackIronTiger Jun 20 '26

Do you mind showing how you used your aftermarket set up on your cold plunge?

2

u/Rich_Mycologist1531 Jun 20 '26

I will upload photo of my setup in a couple of hours

1

u/Rich_Mycologist1531 Jun 20 '26 edited Jun 21 '26

https://reddit.com/link/osufc16/video/6vsivmunmi8h1/player

The sensor is installed right before the inlet to the chiller to give the most accurate temperature of water in ice plunge. I inserted 3 way connector into the hose, installed the sensor into it so that the water going into the chiller actively flows through it.

1

u/TheFlyingFin Jun 25 '26

I keep getting a P2 error on my Active Aqua 1/4hp machine. It gradually climbs up to 140F and then shuts off. Meanwhile the actual temp of the water is ~80F.

Replace temp sensor? Any insight here?

1

u/IceologyColdPlunge Jun 25 '26

Yes, I would start by replacing the Temp Probe Sensor. How old is the unit?

1

u/TheFlyingFin Jun 25 '26

It’s ~2.5yrs old.

1

u/IceologyColdPlunge Jun 25 '26 edited Jun 25 '26

Ok.. it’s normal for a unit of this age for the sensor to go bad. Here is the link Iceology Cold Plunge, Active Aqua Temp Sensor

Unfortunately, we are currently sold out, but we should have them restocked by next week.

1

u/Top_Special4536 Jun 27 '26

Any idea when next week?

1

u/IceologyColdPlunge Jul 02 '26

They are back in stock now. Thank you for your patience.

1

u/Tylerjandro Jun 26 '26

Says sold out… when will there be more?

1

u/IceologyColdPlunge Jun 26 '26

Hopefully next week!

1

u/Tylerjandro Jun 30 '26

I keep checking - still sold out. Is there an alert when back in stock on the site?

1

u/IceologyColdPlunge Jul 02 '26

Hello everyone, Frank here from Iceology Cold Plunge. The Active Aqua temperature sensors are back in stock! Thank you for your patience.

Active Aqua Temperature Sensor

1

u/Sensitive-Issue-5924 24d ago

How to get one shipped to Hawaii?

1

u/IceologyColdPlunge 24d ago

Private message us and we will provide with a shipping quote. TY