No Water Flow Fault in the Chiller for Cold Plunge? Here Is Professional Guide!

No water flow fault is a common problem in the operation of the chiller for cold plunge. As a manufacturer specializing in water chillers, we deeply understand the impact of machine failure on machine operation. In order to help you solve the problem quickly, we have compiled a quick troubleshooting plan and a simple and easy solution to ensure that your ice bath equipment operates efficiently.

Common Causes of No Water Flow Fault in the Chiller for Cold Plunge

In the chiller for cold plunge, the E7 code represents the failure of the chiller to have no water in the water circuit. There are usually three reasons for the failure of no water in the water circuit: water pump lacks water, the water inlet is not sealed well, and the filter is blocked.

The Water Level Line of the Ice Bath Tub Is Lower Than the Water Inlet Height

When the cold plunge chiller pump is running, it generates suction to suck water from the cold soaking container into the pump body. Because the water level line of the cold plunge tub is lower than the water inlet height, the water cannot flow to the water pump. The water pump has no water and cannot generate suction in the pump body to absorb water, so there is a waterless failure in the water circuit.

The Water Inlet Is Not Sealed Well

The water pump needs to reach a vacuum state to generate suction. If the water inlet is not sealed well, air will enter the pipeline, making it impossible for the water pump to reach a vacuum state and generate enough suction to suck water into the water pump, so there is no water.

The Cold Plunge Filter Is Blocked by Foreign Matter

If the cold plunge chiller filter is blocked by foreign matter such as paper towels and paper scraps, the water flow channel is blocked, resulting in water being unable to enter the water pump or downstream pipeline, forming a waterless state. The filter blockage prevents water from entering the water pump, resulting in a lack of water in the pump chamber, and the water pump may run idle.
Idling will prevent the pump from establishing a vacuum, resulting in continuous waterlessness. Usually, when a water circuit failure occurs due to this reason, the user’s chiller for cold plunge may have been used for a period of time.

How to Troubleshoot No Water Flow Fault in the Chiller for Cold Plunge?

After reading the above, you have roughly understood the cause of the water failure. COLDCHILLER provides you with a quick way to troubleshoot the problem and help you choose the most practical solution below.

Check Whether the Water Level Is Lower Than the Height of the Water Inlet

The water level of the water inlet is higher than the water level, and water cannot flow into the water pump and pipes. Therefore, it is necessary to ensure that the water level of the ice bath tub is higher than the height of the water inlet.

Check Whether the Water Inlet Is Sealed Intact

• Check whether the sealing ring of the water inlet is intact and not lost, damaged, or aging and deformed.
• Check whether the connection between the water inlet pipe and the water inlet is loose, and ensure that the two are tightly connected without obvious gaps and misalignment.
• Check whether there is water leakage around the water inlet. If it is difficult to judge visually, you can touch the area around the water inlet with your hand. If there is a noticeable wet feeling, there may be water leakage around the water inlet.

Check if the Filter Is Blocked by Foreign Objects

Take out the filter and check if there is any accumulated grease and dirt, impurities (sand, algae, etc.), blackening or heavy dust accumulation.
Take out the filter and check if there is any foreign object such as hair, paper towels, leaves, etc.

Coldchiller Teaches You How to Quickly Find the Cause of No Water Flow Fault Based on “Monitor”

The above content describes how to troubleshoot the cause of water circuit failure. If you don’t want to find out the specific cause of the water circuit failure step by step, you can also quickly determine the cause of your chiller’s water circuit failure on the control panel.

Find “Setting” in your control panel, click to enter and you can see that there are three options: “parameter”, “monitor” and “light”. Click “monitor” to enter and you can see many values. Check the value in hz in “water pump speed/current”. According to the values, quickly determine what kind of problem caused the water circuit failure.

The Water Pump Speed Is Between 300-330hz

If your value is between 300-330hz, it means that the water pump is not in a vacuum state, and there is air inside, causing the water pump speed to exceed the normal value. At this time, it may be that the water inlet is not sealed well, resulting in a water circuit failure. According to this situation, you can focus on checking whether the water inlet is sealed.

The Water Pump Speed Is Around 330hz

If your water pump speed value is around 330hz, it means that the water pump is idling. It may be because the filter is blocked by foreign matter and the water circulation cannot be carried out normally, resulting in a lack of water in the pump chamber, and the water pump may be idling. It may also be because the water level line of the ice bucket is lower than the height of the water inlet, and the water cannot flow into the water inlet naturally. The water pump lacks water and idling will also occur.

By quickly checking the water level lines of the water inlet and the ice bath container, you can quickly find out which problem causes the water circuit failure and take specific solutions.

Expert Guide from COLDCHILLER: How to Solve Water Chiller for Cold Plunge No Water Flow Fault?

As a chiller manufacturer, COLDCHILLER is committed to helping every user solve problems and let users feel our sincere after-sales service. Here, we have provided practical solutions. To help you understand more clearly how to solve the problem, we provide you with video and text guidance.

Clean or Replace the Filter Cartridge

If your chiller has been in use for some time and issues an E7 warning, the filter element needs to be cleaned and replaced.
The main ways to solve the filter blockage are to clean the filter cartridge or replace the filter cartridge. If you are using a paper filter cartridge, we recommend that you replace it after 10-15 uses. You can replace it according to the following steps. If you are using a stainless steel filter cartridge, we provide you with cleaning and replacement methods.

• Clean the Filter Cartridge

Prepare tools: wrench, high pressure water gun

Steps:
1. Use a wrench or hand to unscrew the chiller filter.

2. Remove the stainless steel filter cartridge.
3. Use high pressure water gun to clean the filter cartridge.
4. Replace the filter cartridge back into the filter cup.

5. Fill the filter cup with water.
6. Reinstall the cleaned filter cartridge back to the chiller. Make sure it is tightened and not loose.

• Replace the Filter Cartridge

Prepare tools: wrench, new filter element
Steps:
1. Use a wrench or hand to unscrew the chiller filter.

2. Remove the old filter cartridge.
3. Put the new filter cartridge back into the filter cup.

4. Fill the filter cup with water.

5. Install the filter with the replaced element back onto the chiller. Make sure it is tightened and not loose.

Note: If your cold pluneg tub has a mesh at the water inlet, it also needs to be cleaned. After cleaning, install the mesh back into the cold plunge tub.

Filling Water

If the water level submerges the water inlet and outlet of the bathtub, push the water pipe to fill water from the water inlet until no large bubbles appear at the water outlet, and then start the chiller.
When you find that your chiller for cold plunge has a no water flow failure, first check whether the water level has submerged the water inlet and outlet of the bucket. If not, continue to add water until the water inlet and outlet are submerged.

How to fill water into the water inlet?
Use a water pipe to connect the water inlet. Turn on the faucet.
Observe the water level in the ice bucket and turn off the water source after confirming that it is higher than the water inlet.

Put away the water pipe and screw it back to the water inlet.

Check if the Water Inlet Is Not Well Sealed

If the above solutions fail to solve the problem, you need to check if the water inlet is well sealed. You need to check the following aspects.

Check if the sealing ring of the water inlet is intact and not lost, damaged, or aging and deformed. If the sealing ring is missing, aged, or damaged, you need to prepare a new sealing ring. Unscrew the water inlet and put the sealing ring in. Screw it back into the water inlet and make sure it is tightened.

Check whether the connection between the water inlet pipe and the water inlet is loose, and ensure that the two are tightly connected without obvious gaps and misalignment. If the water inlet is not tightened, tighten the water inlet to ensure that no excess air enters.

As a professional manufacturer of chillers and ice bath tubs, COLDCHILLER recommends that you clean the cold plunge filter regularly, clean leaves, hair, paper towels and other foreign objects in the water before and after the ice bath, and regularly check whether the water inlet and outlet can meet normal use, reduce the occurrence of faults, and ensure the efficient operation of the chiller.

In order to help you use the chiller for cold plunge better, we provide you with a chiller troubleshooting guide, where you can find the most professional solutions. We also provide you with technical support. Whether it is an installation problem or any problem encountered during the use of the chiller for cold plunge, we are very happy to answer your questions. Please feel free to contact us at any time, COLDCHILLER will be with you.