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During the usage of Karofi water filters, some users encounter errors such as Er1, Er2, Er5… displayed on the machine's control panel. If you're unsure about these errors, let's explore the Karofi water filter error code chart together to find effective solutions!
Karofi Water Filter Error Code Chart
1. Introduction to the Karofi Water Filter Brand
Karofi is a water filter brand under the Karofi Corporation, Vietnam, established in 2012. The company specializes in providing high-end RO water purifiers, water treatment components... Karofi water filters are equipped with modern technologies, doubling capacity and lifespan, controlling water quality via the internet... The water quality through Karofi's RO water filters meets the QCVN 6-1:2010/BYT standard. It's a popular choice among Vietnamese consumers nowadays.
The Karofi Water Filter Brand from Vietnam
2. Karofi Water Filter Error Code Chart
Below is a comprehensive chart of error codes on Karofi water filters to help users identify error statuses and find effective solutions.
| Error Code | Cause | Resolution |
| Er1 | Karofi water filter displays Er1 error due to continuous operation for 2 hours without interruption. | Unplug the machine and let it rest for 1 - 2 hours. Then plug it back in to resume operation. |
| Er2 | Karofi water filter displays Er2 error due to weak water pressure. Blocked filter cartridge 1. | If the water pressure is low, consider shutting off the low-pressure valve. Otherwise, if filter cartridge 1 is blocked, replace it with a new one. |
| Er4 | Karofi water filter displays Er4 error due to no incoming water supply. | Check the water supply lock; it needs to be opened for the system to receive water for filtration. |
| Er5 | Karofi water filter displays Er5 error, which may be due to water leakage at some part. | Unplug the power plug, check the connection points, tighten the filter cups. If the water leakage issue persists, contact the warranty center for assistance. |
Note: For Karofi standing water filter models with control panels and displays, users can identify these error codes.
3. Other Common Issues with Karofi Water Filters
In addition to the error codes mentioned above, here are some other issues that users may have encountered with Karofi water filters. The causes may stem from external factors or improper usage.
| Error | Cause | Solution |
| Water filter not working | Power socket or wires are broken or loose. High-pressure valve or low-pressure valve is damaged. | Check the machine's electrical wiring. If a valve is found to be damaged, contact the warranty center. |
Water filter light not illuminated | Adapter not functioning. Control circuit malfunction. | Check and replace the faulty old Adapter. |
Water filter making loud noise | Solenoid valve opening and closing continuously or blocked filter cartridge 1 | Check the water supply line and inlet water to cup 1. |
Excessive waste water discharge | Faulty Flow valve. Weak pump pressure. | Replace with a new Flow valve. Check the pump, replace with a new Adapter if necessary. |
| Water leaking from filter cup | Filter cup not tightened properly. Rubber ring in the filter cup misaligned. | Check the filter cup, if loose, tighten it. Turn off the power, lock the water supply valve, remove the filter cup for rubber ring inspection then place the ring in the correct position. |
| Water filter flow weak, no water output | RO membrane blocked. Weak pressure in storage tank. Adapter operating below standard. Weak pump. | Replace RO membrane if found clogged. The storage tank pressure should be from 0.7 - 0.8 kg, which is the standard level for stable machine operation. In case of weak pressure, add more air to the storage tank. |
| Purified water tastes strange | Carbon filter No. 5, filters No. 6/7/8 are ineffective. RO membrane punctured. | Check the filter cartridges, RO membrane, and replace them regularly or when the cartridges are heavily contaminated. |
4. Things to Note When Using Karofi Water Filters
First-time water flush: Newly purchased water filters need to flush water from 3 - 4 times to remove all sediments and impurities in the water. After flushing, the machine will filter stably and provide you with pure water for peace of mind.
Flushing water for the machine in the first use
Regular Filter Replacement: For water sources with high contamination, the filter should be replaced more frequently. Whenever you notice heavy sediment buildup on the filter, replace it immediately. Never allow a dirty filter to continue filtering water because the water quality obtained then is not clean and extremely unsafe.
Filter Replacement for Karofi Water Filters Regularly
Appropriate Power Supply: Each type of Karofi water filter has a specified voltage level for use. Therefore, you should connect the power source according to this level to ensure stable voltage for normal operation. Avoid using multiple devices on the same power outlet with the water filter.
Keep Water Pipes Clear: Keep the water filtration system well-ventilated, clean the pipes if you find any dirt build-up. Absolutely avoid installing the water outlet of the machine into hot water pipes.
Ensure water pipes are always clear
Above is the error code table of Karofi water filters and some other detailed errors listed. Hopefully, this article provides you with essential information. If encountering these errors, users will easily identify the causes and have effective solutions. However, if the issue is related to the machine's circuitry, you should contact the warranty center for inspection.
