How to Reset Check Filter Light on Friedrich Kuhl Air Conditioner

A “reset filter” indicator is often seen on window air conditioners. Whenever your air conditioner has been operating for more than 250 hours, a “reset filter” light will come on to alert you to the fact.

Filter cleaning is a reminder when the light turns on. To turn off the LED light and resume the run time counter, press the “Reset Filter” button.

In order to cool a space, Friedrich Kuhl air conditioners draw in air from outside and deliver it after passing through the evaporator coils and the filtering process.

Consequently, the filter must be cleaned at regular intervals or when it reaches a point where it is no longer able to function properly.

To reset check filter light on Friedrich Kuhl air conditioner is not a difficult process.

You may observe the filter reset light on even a few weeks after the purchase since the operational period for the indicator has expired and it is indicating that you should check the filter.

If such is the case, then removing the filter will reveal a clean component.

What is the Filter Reset on AC?

Filter reset lights indicate that the air conditioner’s air filter needs to be replaced to ensure proper airflow.

Resetting the filter implies that it must be returned to its original state in order to maintain the supply of high-quality air at an acceptable flow rate.

Filter replacement/cleaning times vary amongst air conditioners of various manufacturers and models.

Fredrich Kuhl air conditioners have a typical filter change interval of 250 hours for most models. For 250 hours, the filter reset light will be on. That’s a quite frequent cycle.

The blower’s suction pressure often triggers the filter reset in many air conditioners.

Because of a change in suction pressure, the board resets and the air conditioner’s clean filter or filter reset light comes on when the airflow through the filter is impeded.

Steps to Reset the Check Filter Light on AC

Here are the main steps to reset the check filter light on the Friedrich Kuhl air conditioner.

Step 1: Examine Your Filter

First and foremost, when you notice the reset filter light on, you must inspect the filter.

The suction pressure has diminished, which signifies either the company’s operational hours have been completed or the suction pressure has been reduced (due to clogging of the filter).

Remove the front cover of your air conditioner in any of the aforementioned scenarios. It might vary depending on the brand and type of the air conditioner.

In general, they try to make it as simple as possible to get to the filter.

Remove the air filter by opening the front grill and inspecting it. Most of the time, the filter will be filthy, dusty, or even moldy.

This indicates that there may be a problem or that the air conditioner manufacturer’s suggested filter check time period has passed, based on model and capacity.

Step 2: Replace or Clean Your Filter

The air conditioner filter may be cleaned or replaced when it is removed from the machine. The filters in most air conditioners are designed to last for a long time, so they may be reused.

The only exception is if the filter is not reusable, which is very unusual, and the filter is blocked.

However, in most situations, the filter may be cleaned and reused without having to buy a new one. You may use the following procedures to clean your home:

  • To remove the majority of the dust and grime, thoroughly vacuum the air conditioner.
  • Make a solution to clean the filter.
  • Wait for the filter to air out.
  • Reinstall the filter in the same way it was previously installed.

Step 3: Getting Rid of the Filter Reset Light

Friedrich’s air conditioner reset check filter is now as simple as pressing or clicking the filter reset light button for three seconds.

As with Fredrick Kuhl air conditioners, the filter reset is done by pushing the arrow button at once in certain models.

Usually, it’s that easy. If you are still unable to locate the function, you may be able to discover it in the AC Manual.

How to Clean a Friedrich Air Conditioner?

Friedrich air cleaners use pre-filters, electronic cells with collection plates, and activated carbon post-filters to remove dust, grease, smoke, or other particles and smells from the air.

Cleaning and replacing filters is made simple with Friedrich’s Air Cleaner series.

Step 1: Never Forget to Clean

At the very least, you should clean the Friedrich Air Cleaner filters once a week.

Dirty filters may obstruct airflow or enable too many particles to accumulate in the unit, resulting in poor air purification if it is used in heavy traffic, dusty, or smoky environment or continually.

Filters that are clogged may reduce the charge on the collector plates, enabling particles to travel through the unit without being collected. This can reduce the power distribution in the electronic cell.

Step 2: Unplug

Unplug the device from the wall outlet.

Step 3: Remove the Cell

The electronic cell and pre-filter may be removed by removing the unit’s top cover.

Step 4: Clean Inside of the Machine

Pre-filter the electrical cell with a vacuum cleaner before cleaning it. Toss them out. Clean the inside of the machine using a vacuum cleaner. Remove the carbon filter and vacuum it.

After three to six months of usage, carbon filters lose their ability to absorb odors.

If you detect any odors in the air coming out of the carbon filter while it is in use, remove and discard it.

Step 5: Soak the Cell

Soak the cell for at least 15 minutes if you’re cleaning it in a container. Approximately every three minutes, shake the container gently from side to side to remove any particles/debris.

Wash the pre-filter with detergent or cleanser after rinsing it with hot water. Clean the filter with grease using a grease gun and/or smoke degreaser.

Step 6: Leave for 10 Minutes

Allow at least 10 minutes of soaking time for the electronic cell after rinsing it in another big container of hot water.

Step 7: Dry the Cells

Air-dry both the cell and the pre-filter. Wait for the cell and pre-filter to dry before replacing the carbon filter, if required.

Step 8: Reassemble the Unit

After the cell/pre-filter is totally dry, reassemble the device. In order to have a better view, move your unit around the room.

What Happens If No Filter in AC unit?

While it’s possible to go a few days without changing the air filters in your air conditioner, it’s a bad idea.

When your air conditioner is running, you take in dirty, stale air that is filtered out by the filters.

In order to keep dirt and debris from entering the air conditioning system, a filter is placed in front of the vents to act as a barrier.

Accumulated dirt and other debris may be attributed to motor and compressor failures.

If you don’t have a good filter to keep impurities out of your motor and compressor, they might inflict stress on the whole system.

Your family’s health might be in jeopardy if you don’t have an air filter in place in your home.

To keep your house cool, you’ll need a more powerful system if you don’t have a working air filter in place.

As a result, your utility rates may go up since the system now requires more electricity to run properly.

Also Read: How to Remove Old Recessed Light Housing


Having a blocked and unclean air conditioner filter may have serious effects on you and your family. Friedrich’s air conditioner check filter light has only two to three steps.

In many cases, resetting the check filter on your air conditioner may resolve your problem with a tripped circuit breaker.

Once you’ve mastered the technique, it’s a piece of cake. A technician may be required to diagnose the source of the issue if your AC unit keeps shutting down and then restarting itself.

You don’t want to be caught off guard if your air conditioner breaks down just as the temperature soars.