Ultra 1HP ChillerSetup & Support

If your chiller is running and the water is circulating, but the temperature is not dropping as expected, follow the steps below to identify and resolve the issue.

1. Ensure Proper Operation: Confirm that the chiller is turned on and the water is circulating correctly. If you don't have water flow then first read this article: Why is my water not circulating?

2. Adjust Temperature Settings:

• Press & hold the POWER button to turn the unit ON.
• Adjust the temperature up or down using the arrow buttons.

The chiller should start cooling and you should hear the compressor running within 3-5 minutes. If not, proceed to the next steps.

If you keep having issues then click on this link: Contact form or contact our customer support team directly on support@plungechill.com

It sounds like your chiller is running, but you’re having trouble with water circulation. Let’s work through a few steps to resolve this issue:

1. Check the Filter:

• Make sure the filter is clean and properly installed. We recommend replacing the filter cartridge every two weeks, depending on usage and water condition. If you haven’t changed your filter recently, it might be the cause of the problem.

2. Review the Setup

• Confirm that the system has been connected according to our Setup Guide, with the hoses connected to the correct IN and OUT ports.
• Make sure the hoses are not bent or blocked, all applicable tub valves are open, and all connections are securely tightened.
• Check that the O-ring is properly seated between the 3/4" L-shaped connector and the chiller port.

3. Remove Trapped Air

• Open the tub’s IN and OUT valves.
• Open the air-release valve on top of the filter and allow the filter to fill with water.
• Close the air-release valve once water begins to flow out or the water level stops rising.

Note: If the temperature on your display drops quickly but the water in the tub isn’t cooling, it’s a sign that the chiller is working, but the water circulation needs adjustment.

• High ambient temperatures can increase cooling time.
• Place the chiller in a shaded, well-ventilated area.
• Keep enough clearance around the air vents.
• Reduce the amount of water when appropriate.
• Set a lower target temperature.
• Keep the tub cover securely closed.
• Allow sufficient time for the water to reach the target temperature.

If the screen shows “OFF,” the chiller is in standby mode. Unlock the screen first: hold ▲ + ▼ together for 3 seconds, then press the Power button to start.

1. Make sure the chiller is plugged into a working electrical outlet.
2. Turn on the main power switch on the back of the chiller.
3. Press and hold the Power button on the control panel to turn on the unit.

If the display remains blank, contact us at support@plungechill.com.

1. Check that the chiller is plugged into a working outlet.
2. Make sure the main power switch on the back is turned on.

If the unit still doesn't respond, record a short video showing the issue and email it to support@plungechill.com.

F01 — Temperature Deviation
Controls how far the water temperature rises above your target before cooling restarts.

• Range: 1–27°F
• Default: 5°F
• Example: If your target is 45°F, cooling restarts at 50°F.

To adjust: Hold Up + Down → press Power to select F01 → adjust with Up or Down → press Power to confirm.

Keep the recommended 5°F setting. Setting it too low may cause frequent compressor cycling.

F02 — Temperature Calibration
Adjusts the displayed temperature. Normally, leave it at 0°F.

To check: Hold Up + Down → press Down to reach F02 → press Power to view the value.

If the reading is still inaccurate at 0°F, contact support before making changes.

The panel exits Function Mode after about 10 seconds of inactivity.

Watch the Chiller Operation video

1. Turn off and unplug the chiller before checking connections.
2. Check that the O-ring between each 3/4-inch elbow connector and the chiller port is present, undamaged, and seated evenly.
3. Apply PTFE (plumber’s) tape to threaded fittings that require thread sealing. Keep tape off O-ring sealing surfaces.
4. Hand-tighten fittings without overtightening. Push hoses fully onto their connectors and secure the clamps.

Wipe the area dry. Scattered droplets may be condensation; continuous dripping from one connection may indicate a leak.

If leaking continues, send a short video of the affected area to support@plungechill.com.

Small water droplets on the outside of the chiller are usually condensation. This happens when warm, humid air comes into contact with the cold surface of the chiller. Wipe the surface dry and check whether the chiller is cooling normally. If it is cooling properly and no continuous water leak is found, this is normal condensation.

Stop using the tub and record a short video clearly showing the location of the leak.

Email the video, along with your order number and a brief description of the issue, to support@plungechill.com. Our support team will review it and assist you with the next steps.

If your water chiller's pump is making a loud noise, it’s often due to air in the system or a lack of water flow. Here's how to address the issue and get your pump operating quietly again:

1. Check the Filter and Circulation:

• First, determine when you last changed your filter cartridge. Regular maintenance is crucial.

2. Verify and Fix Connections:

• Make sure Teflon tape is applied to all threaded connections.
• Check that the O-ring is properly seated between the 3/4" L-shaped connector and the chiller port.
• Reconnect the hoses and securely tighten all connections.

3. Remove Trapped Air

• Open the tub’s IN and OUT valves.
• Open the air-release valve on top of the filter and allow the filter to fill with water.
• Close the air-release valve once water begins to flow out or the water level stops rising.

4. Power Up:

• Plug your chiller back in and turn it on. The pump should now operate quietly once it has a steady flow of water.

If you’re experiencing slow water circulation, it’s often due to a clogged filter. Here’s how you can address and resolve the issue:

Clogged Filter: Over time, dirt and debris can clog the filter, which reduces water flow to the tubs or stops it completely. Changing the filter cartridge should help restore proper circulation.

Before starting, fill the tub until the water level is above the chiller's OUT port but below the tub's IN port.

1. Make sure the chiller is powered off.
2. Open both tub valves (IN and OUT).
3. Open the air release valve on top of the filter.
4. When water overflows, close the air release valve.
5. Turn on the chiller and make sure the external pump is plugged into the power socket on the back of the chiller.
6. Confirm that water is circulating smoothly.

Important: Keep the filter's air release valve closed during normal operation. Never allow the pump to run dry.

1. Turn off the chiller, unplug the external pump, and close both tub valves (IN and OUT).
2. Open the air release valve on top of the filter to release pressure.
3. Turn the filter canister counterclockwise to open it, then remove the cartridge.
4. Rinse the cartridge thoroughly or replace it with a new one.
5. Reinstall the cartridge and tighten the canister clockwise until secure. Do not overtighten.
6. Open both tub valves and follow the filter air release steps above before restarting the chiller.

To help us determine whether the noise is within the normal operating range:

1. Download a sound meter app:
   iPhone: NIOSH Sound Level Meter
   Android: Sound Meter or Decibel X
2. Measure the noise from about 3 ft (1 m) away for at least 30 seconds while the chiller is running.
3. Turn off nearby noise sources for a more accurate reading.
4. Send us a short video showing the chiller running and the dB reading.

Our technical team will review the results. If the noise is confirmed to be abnormal and cannot be resolved, we’ll provide an appropriate solution, including replacement if necessary.

Email support@plungechill.com with your order number, a brief description of the issue, and clear photos or a short video showing the problem.

If the video is too large to attach, upload it to Google Drive and include a shareable link in your email.

Our support team will review the information and help you with the next steps.

Email photos or a short video of the affected parts to support@plungechill.com, together with your product model and a description of what is missing or damaged.