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Fix Toshiba Air Conditioner Operation Light Blinking – DIY Guide

Toshiba air conditioners have a blinking operation light, meaning that there’s some sort of issue with the unit and you may need to troubleshoot it before using it again.

While Toshiba air conditioners are typically very quiet, the blinking operation light is an indication that something isn’t right with your AC unit and could be an indication of future problems to come. A capacitor is a crucial component for the compressor to function properly.

If it is damaged, you’ll end up with the following problems: an air conditioner that does not cool well, the compressor that either make a loud buzzing or humming noises and lights that remain on.

Don’t let this scare you, as I did when I got my new Toshiba AC and was unaware of the use of this blinking light though! Just follow these steps to troubleshoot your Toshiba air conditioner’s blinking operation light and get back to relaxing with your unit in no time!

Toshiba Air Conditioner Operation Light Blinking

If your air conditioner won’t turn on

There are three possible explanations for your air conditioner not turning on.

1) The filter may be dirty or clogged.

2) The unit might be low on coolant.

3) There might be a power outage in your area.

If you need to clean the filter, first unplug the unit and wait for it to cool off before cleaning. Using compressed air is also an option as well as using a vacuum cleaner with a brush attachment to remove dust and dirt that has accumulated at the bottom of the unit.

If the air conditioner abruptly shuts off

Locate and remove the room temperature sensor located at one of the four corners of your air conditioner. Take it into a different room that you would like to set a temperature for, then insert it into a spot in this other room and reinsert the plug.

Check to see if that new spot is reaching your desired temperature and record accurately by examining your room thermostat. In case you are unable to get an accurate reading on your new thermostat, swap sensors until you find one which provides proper readings.

If your air conditioner turns on and off rapidly

If your Toshiba air conditioner turns on and off rapidly, there is a good chance the capacitor needs to be your air conditioner shuts down

An air conditioner will usually shut down if it is not producing cool air. This can be due to a dirty filter, broken capacitor, clogged filter, or other problems. To correct this problem you will need to identify and fix the source of the issue before attempting to power the unit back on. If it is still out of warranty and you are uncertain how to solve the problem yourself call a professional.

How to stop blinking operation light permanently

Blinking operation lights is typically a sign that something is wrong with the air conditioner. The blinking light might mean there is an issue with the power, fan, water, or heat pump. There could also be an issue with how the unit is wired or how it is set up in your home.

For example, if the blinks occur intermittently and the rest of your electronics are on but running slower than normal then it might mean that you have too many electronics on one circuit and you need to add another circuit to fix this problem.

Toshiba air conditioner operation light flashing

Air conditioners have various lights on them for different purposes. The most common lights are usually the fan/timer indicator light, the display screen, and the operation light. The blinks from your air conditioner’s operation light likely mean it needs some attention.

To find out what could be wrong with your unit, you’ll need to check for any physical signs that can help pinpoint the problem or ask a heating and cooling professional to take a look at it.

Toshiba air conditioner heat mode not working

There are many possible reasons why your Toshiba air conditioner heat mode might not be working, here is the most common one and the solutions you can try.

Your Toshiba air conditioning unit is running on low voltage; meaning that there is not enough power to support heating. Ensure that the electric power supply is properly wired and phase set or call an electrician. This may also indicate that your thermostat needs adjusting because it’s no longer sensing temperatures correctly.


Why is my Toshiba aircon operation light blinking?

The blinking air conditioner operation light is the result of an error, and this can often be indicative of a problem with the power. From here, you’ll want to locate the AC unit near an electric outlet and plug it in.

This will keep it from losing power, and help stop the blinking operation light from appearing on your device as it begins to work correctly again. Before proceeding, check that the power cord for your AC unit is tightly plugged into both the wall socket and your AC unit – if not you may need to replace either one or the other before connecting them once more.

What do you do when your AC light is blinking?

For those who don’t know, the light on your AC may blink if it needs a filter or when the remote or the main unit is too far away from one another. The blinking lights are not indicative of a fault with your AC, they just indicate that you need to take corrective action.

If the blinking is coming from the remote, this means that you are either too far away from your AC and need to be closer so that you can reach it with your remote or it could mean that there is an object blocking its path. Either way, go fix it!

If the blinking is coming from inside of your AC unit and you notice that there are dirty filters, wash them out and then put them back in the place where they should be. It may also be the case that your remote is low on batteries and needs to be replaced.

Your unit will still function but it will do so without the control of the remote which would make things difficult. Remove all objects that might block the signal between your units and replace any batteries before continuing use.

How do I factory reset my Toshiba air conditioner?

Assuming that your AC has been acting up recently and might need a reset, we’ll cover the reset process for Toshiba air conditioners.

First, you’ll want to turn off the breaker box or unplug the unit, which is the best option if you have pets in your home.

Next, remove the front panel by unscrewing it using a Phillips screwdriver on all four corners of the unit. This will give you access to the wires and some wiring fixtures.

Next, you’ll see two switches—these allow you to manually reset your AC. Locate them behind two panels on either side of your front panel on either side of what would be exposed as soon as it was removed, if done correctly.

Also read: Fix Your Daikin AC Reset Button – The Comprehensive Guide


Air conditioners are complex machines with several different indicators and operational light patterns. Many people overlook the blinking operation light on their Toshiba air conditioner because they don’t know what it means.

However, if the operation light is blinking, that can mean a few different things depending on how quickly it blinks and how long it stays lit. If you’re unsure what your air conditioner’s blinking lights signify, read this guide to get a better understanding of when you should worry and when you should ignore them!

Talha Hanjra

Hi! I'm Talha Hanjra. I have a natural affinity for cutting-edge technological devices, and I enjoy finding solutions to their difficulties. I'll tell you how to fix various outdated gadgets and where to buy the best products. My research and experience will be of tremendous use to you.

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