Does your Frigidaire dishwasher keep displaying an “i20” error code? Don’t worry – it may be trying to tell you something. The i20 is its way of signaling a drainage issue that needs to be investigated. By following some simple troubleshooting steps, you can determine the root of the problem and get your appliance functioning normally again. With a bit of maintenance and cleaning, you can also reassure your dishwasher that you’ve got its back so it doesn’t have to cry for help next time!
What is the i20 error code?
Frigidaire dishwashers display error codes when a problem is detected. The i20 error code indicates a specific issue with drainage.
Meaning of “i” error codes
On Frigidaire models, error codes that start with the letter “i” relate to issues with water flow or drainage. So, if you see an i20 code, you know it has something to do with water not draining properly.
Specific indication of i20 code
The i20 display flashing on your dishwasher points to a clog or blockage in the drainage path. This prevents water from leaving the dishwasher tub after the wash cycle finishes.
When the error message appears
You will see the i20 code when the dishwasher fails to pump water out. It tries unsuccessfully for a certain period before quitting and lighting up the i20 message. This usually happens after you run a wash cycle and it reaches the normal drain portion at the end. If you see the message, then it means it cannot empty itself.
Causes of i20 errors
So now you know that the i20 code means there is a drainage issue preventing your dishwasher from emptying out water. But what causes this problem in the first place? Here are the most common culprits:
Clogged or blocked drain lines
This is the most common reason you would see an i20 error code. Food debris, grease, and soap scum build up over time and clog the drain lines. So when the wash cycle finishes, water is unable to exit the dishwasher. Always remember – keeping your drain lines clear is key!
Drain pump failure
The drain pump is responsible for pumping water out to the drain line. If this pump fails or is faulty, it is unable to pump out the water as intended, which leads to the i20 error display.
Power supply issues
Dishwashers need consistent power for all their parts to work correctly. If there is some voltage problem or electrical supply interruption, even for a split second to the unit during drainage, it could impede pumping action, triggering an i20 message.
Incorrect drain hose setup
If your drain hose gets kinked or configured incorrectly with sharp bends, water may not flow smoothly, leading to a backup. An improper high-drain hose route can also sometimes cause siphoning issues.
Loose electrical connections
Faulty wiring connections to dishwasher parts like the drain pump can affect functionality, again resulting in poor drainage and an i20 display.
Bad control board
The control board is the “brain” that controls the functioning of your dishwasher. If it is defective, it can send wrong signals that lead to drainage failure and an accompanying error code display.
How to troubleshoot the i20 error code
Seeing an i20 error code can be frustrating. But don’t worry – in most cases, it can be fixed with some simple troubleshooting. Here are the step-by-step things to try:
Clean out the filters
The filters on your dishwasher prevent food debris from entering the drain path. If they get clogged, drainage flow is obstructed.
- Remove and clean filters: Take out all filters and rinse/scrub away any stuck-on debris.
- Check for debris or buildup: Examine filters and filter housing for blockages. Flush with water if needed.
- Reinstall filters properly: Once cleaned, place filters back securely in their housing.
Verify the drain hose setup
The drain hose carries water from your dishwasher tub to the sink drain pipe. Any issues with it can lead to drainage failures:
- Check for kinks, pinches, or sharp bends.
- Ensure tight hose clamps and no leaks.
- Verify proper hose routing per manual.
- Check for obstructions or debris blocking the hose.
Test the drain pump
The drain pump pushes out water. Test it by:
- Entering diagnostic mode on your unit.
- Activating the pump and observing drainage flow and volume.
If the flow is weak, the pump could be failing and need replacement.
Clear clogs
Even if your filters are clean, there could be a clog in the drain line preventing proper water flow.
- Disconnect the drain line from the garbage disposal or sink trap.
- Use a mesh strainer and water jet to clear out debris from the line.
- Reconnect the drain line once it is fully clog-free.
Check electrical connections
Faulty wiring can affect dishwasher drainage if vital components lose power.
- Unplug the dishwasher first for safety.
- Inspect connections to drain pump, control board, heating element, etc.
- Clean contacts if corroded and tighten loose wiring.
Inspect plumbing components
Drainage faults could also arise from issues with hookups:
- Remove the knockout plug if connected to a garbage disposal.
- Check the drain pump impeller and housing for damage.
- Ensure there are no sharp bends or crimps in hose routing from unit to sink.
How to prevent i20 drain errors
Troubleshooting an existing i20 clog can be a hassle. So isn’t it better to stop the problem before it even happens? Here are smart tips to avoid this drainage error message:
Regular cleaning of filters and spray arms
The dishwasher filters and rotating spray arms are most prone to getting clogged over time. Give them a thorough rinse every week to prevent debris accumulation.
Inspection and cleaning of drain pump screen
Food particles may bypass filters and get trapped in the drainage pump screen. Check and clean this every month.
Monthly use of drain cleaner
Pouring drain cleaner into the empty tub once a month helps dissolve grease and keep lines clear. This prevents gradual build-up of gunk.
Avoid overloading dishwasher
Stuffing too many dishes into wash and rinse cycles reduces cleaning performance. This leaves more food debris that could lead to clogged drains later.
Ensure correct hose installation
Check that your drain hose has no kinks or elevation issues. Make sure it connects properly without any leaks. Verify it is securely fastened.
Address plumbing issues promptly
If you face any other sink or garbage disposal drainage problems, tackle them immediately before it starts affecting your dishwasher as well.
The key is staying vigilant through regular care and maintenance! Putting this into practice will go a long way in avoiding i20 headaches.
Also Read: Troubleshoot the Frigidaire Dishwasher i50 Error Code with These 5 Easy Steps
Conclusion
We have covered a lot of ground in troubleshooting the i20 error message. Let’s recap the key takeaways:
- The i20 code indicates the dishwasher cannot pump water out, usually due to a clogged drain line.
- Causes can range from debris buildup to component failures.
- Inspecting filters, drainage parts, electrical connections, and plumbing is needed to diagnose issues.
- In many instances, clearing out obstructions and replacing faulty elements can get your dishwasher back up and running.
- Taking preventative care is vital – from regularly cleaning filters to running monthly drain cleaners.
While drain failures causing an i20 code might seem complicated, a methodical approach and maintenance vigilance help resolve and avoid issues in the long run.