Toshiba air conditioner symbols appear on the remote and as lamps on the indoor unit. Toshiba puts a lot on a small screen. Mode icons, seven fan speeds, a row of white lights on the unit itself, and a set of functions with names like Hi POWER and COMFORT SLEEP that mean nothing until somebody explains them.
This page sets out every Toshiba air conditioner symbol in plain language, taken from Toshiba owner manuals rather than from guesswork. Start with the chart, then read the section that matches whatever is on your screen.
Toshiba air conditioner symbols at a glance
Here is the quick answer. Toshiba fits different controllers across its range, and a wall mounted wired controller carries more symbols than a handheld remote does. If your system is a different brand, our general guide to air conditioner symbols covers the ones every manufacturer shares.
| Symbol | What it means | What to do |
|---|---|---|
| A, or Auto | Auto changeover control. The unit picks cooling, heating or fan by itself. | Settable from 17 to 30 degrees. |
| Cool | Cooling mode. | Settable from 17 to 30 degrees on a handheld remote. |
| Heat | Heating mode. | Settable from 5 to 30 degrees, a wider range than cooling. |
| Dry | Dehumidifying. Toshiba describes a moderate cooling performance controlled automatically. | Fan speed cannot be changed in this mode. |
| Fan only | Air is circulated, nothing else. | No temperature is shown at all in this mode. |
| Bars or speed marks | Fan speed. Auto, low, low plus, med, med plus, high, quiet. | Seven steps. Quiet sits in the fan speed list rather than being a separate button. |
| Moving louvre arrows | Swing. Vertical, horizontal, or both. | Never move the louvre by hand. Toshiba warns against it. |
| Hi POWER | High power operation. | Controls temperature, airflow and mode automatically for faster results. |
| ECO | Energy saving. | Adjusts the room temperature automatically to save power. |
| QUIET | Quiet operation. | Sets the fan to its lowest speed. |
| COMFORT SLEEP | An off timer that also adjusts temperature and fan speed. | Choose 1, 3, 5 or 9 hours. |
| PRESET | Your saved settings. | Hold the button for three seconds to memorise what the unit is doing now. |
| 8 degrees | 8 degree heating for an empty property. | Temperature range drops to 5 to 16 degrees while it runs. |
| Clock or timer | A timer is set. | Handheld remotes offer an off timer from half an hour to 12 hours. |
| FILTER | Time to clean the filter, on wired controllers. | Clean it, then press the filter reset button. |
| Small transmission mark | The remote is sending a signal to the indoor unit. | Nothing. It confirms the remote is working. |
| Padlock | Operations locked, on wired controllers. | Hold the return button for more than four seconds to lock or unlock. |
| Blue light on the unit | Cooling is running. | Nothing. This is the mode indicator. |
| Orange light on the unit | Heating is running. | Nothing, on the current LED strip models. |
| Flashing orange light | On older receiver style units, a fault. | See the fault section below. |
Every meaning above is taken from Toshiba owner manuals. Where Toshiba does not publish something, this page says so rather than filling the gap from another brand.
The five Toshiba mode symbols
Mode is the setting that matters most. Everything else on the remote adjusts how a mode behaves rather than what it does.
Cool
Cooling takes heat out of the room. On a Toshiba handheld remote the setting range is 17 to 30 degrees, which is worth knowing because it is narrower at the bottom than some brands allow.
On a wired wall controller the range is different again, 18 to 29 degrees, and an installer can narrow it further with a set temperature range limit. If your controller refuses to go where you want it, that limit is the likely reason rather than a fault.
Heat
Heating runs the system in reverse and brings warmth in from outside. The range here is wider, 5 to 30 degrees, because heating has to cover an empty house in winter as well as a lounge room in the evening.
Dry
Toshiba describes dry mode as dehumidification where a moderate cooling performance is controlled automatically. The unit is chasing moisture rather than temperature.
Fan speed cannot be changed in dry mode, which is by design. On a muggy Melbourne evening when the room is not really hot but feels heavy, this is the setting to reach for.
Fan only
Air is moved around the room and nothing else happens. The giveaway is the display, because in fan only mode no temperature is shown at all.
That is useful. If your screen shows no temperature and the room will not cool, you are on fan only rather than looking at a broken unit.
Auto changeover control
Shown as the letter A on many Toshiba displays. The unit selects cooling, heating or fan only by itself based on conditions. Settable from 17 to 30 degrees.
Fan speed and airflow on a Toshiba
Toshiba gives you more fan steps than most brands. The handheld remote offers auto, low, low plus, med, med plus, high and quiet, which is seven positions rather than the usual four.
Quiet is worth calling out because it sits inside the fan speed list rather than being a separate mode. Selecting it puts the indoor fan at its lowest speed. Toshiba describes quiet operation as providing quiet operating status by automatically setting the fan speed to the lowest speed.
Swing is selected as swing off, vertical up and down, horizontal left and right, or both together. Some models add a setting called HADA CARE FLOW. Toshiba lists it as a selectable airflow option but does not publish a description of what it does in the manuals available here, so this page will not invent one.
One instruction from Toshiba worth obeying. Do not move the louvre by hand. The manual says so plainly, and forcing a motorised louvre is a common way to turn a working unit into a repair.
Hi POWER, ECO and the comfort functions
Hi POWER
Toshiba describes Hi POWER as automatically controlling room temperature, airflow and operation mode so that the room is quickly cooled in summer and warmed in winter.
Note that it changes more than fan speed. It is allowed to adjust the mode itself. It cannot be used in dry or fan only.
ECO
ECO automatically controls room temperature to save energy, and like Hi POWER it is unavailable in dry and fan only. It is the gentler way to cut running costs, because the unit keeps working rather than being switched off and asked to recover a hot room later.
COMFORT SLEEP
This is not a simple sleep button. Toshiba describes it as an off timer operation that automatically adjusts the room temperature and the fan speed, and you choose 1, 3, 5 or 9 hours.
So it does two jobs at once. It eases the temperature overnight and it switches the unit off at the end of the period you picked.
PRESET
PRESET memorises the way you like the unit set up. Push the button for three seconds while the unit is running as you want it, and the mark appears on the display. After that a single press recalls the lot.
FIREPLACE
A genuinely unusual one. Toshiba describes it as keeping the indoor unit fan blowing continuously during thermo off, to circulate heat from other sources over the room.
In other words it turns the air conditioner into a circulation fan for the heat your wood heater or gas heater is already producing. Worth knowing if you have both.
Self clean
Press the self clean button once during cool or dry and the fan will continue to run for another 30 minutes after the unit stops. That dries out the inside of the indoor unit, which is the single best habit for avoiding the musty smell an air conditioner develops over a few seasons.
The 8 degree heating symbol
The 8 degree symbol keeps a minimum amount of heat in a property that is sitting empty in cold weather. While it is running the settable range drops to 5 to 16 degrees.
There is a catch worth knowing. Toshiba states that during 8 degree mode some functions cannot be used, specifically QUIET, Hi POWER and the off timer. If those buttons appear dead, check whether the unit is in 8 degree heating before assuming anything is broken.
Timer symbols on a Toshiba
What you get depends entirely on which controller you have, and this is where the two families separate.
On a handheld remote for a wall unit, Toshiba documents an off timer that can be set from half an hour to 12 hours, and the setting is saved for the next time you use the same operation.
On a wired wall controller there is far more. Toshiba documents an off timer, an on timer, a repeated off timer that shuts the unit down a set duration after every start, and a weekly schedule. On one controller the maximum is 168 hours, which is seven days.
The wired controllers also carry a holiday setting, where days specified as holidays do not run on the schedule at all. If your office or shop system is refusing to start on a particular day, that is the first place to look.
The filter symbol and how to reset it
This is another split between the two controller families, and it catches people out.
Wired wall controllers display FILTER when it is time to clean the air filter. Older ones have a dedicated filter reset button. Newer ones reset it from the menu, where you select filter sign reset and confirm.
Residential handheld remotes are different. Toshiba does not document a filter reminder icon on the infrared remotes for its wall units. Those manuals cover filter cleaning as routine maintenance rather than something the unit prompts you about.
So if you have a wall split with a handheld remote and you are waiting for a filter light, it is not coming. Put a reminder in your phone instead.
The lights on a Toshiba indoor unit
Toshiba uses two quite different indicator systems, and knowing which you have changes what a light means.
The LED strip on current wall units
Shorai Edge and Haori models carry a row of small lights. White for ECO, white for wifi access, white for Hi POWER or PURE depending on the model, white for timer, then the mode indicator, blue for cooling and orange for heating.
These are status lights rather than fault lights. Toshiba does not publish what a flashing light means on this LED strip, so this page will not claim to know.
The older receiver style lamps
Units fitted with a separate infrared receiver carry three named lamps, and here Toshiba is specific.
- Green operation lamp. Illuminates when the unit is on.
- Green timer lamp. Illuminates while a timer is reserved.
- Orange lamp. In heating, it illuminates when operation has started, when the temperature controller has worked, and while the unit is defrosting. It flashes while a trouble occurs.
That last line is the one that matters. On these models an orange lamp that is steady during heating is normal. An orange lamp that flashes is the unit reporting a fault.
Error codes on a Toshiba, and why this page does not list them
Toshiba stores check codes, and the wired controllers show them plainly. When an error occurs, the check code and the indoor unit number flash on the display, and pressing return opens a check screen.
Handheld remotes on residential units do not show you a code at all. The orange lamp flashes and the manual directs you to a troubleshooting list.
Here is the honest part. Toshiba does not publish a consumer facing table of check codes and their meanings. Toshiba Australia has a fault codes page aimed at installers and technicians, and the actual code lists sit inside documents intended for the trade rather than for homeowners.
For that reason this page does not print a Toshiba code table. Every list circulating on Australian blogs is unverifiable against Toshiba published homeowner documentation, and quoting the wrong one sends you to the wrong conclusion about your own unit. If your controller shows a code, write it down exactly and read it out when you call.
Toshiba behaviour that looks like a fault and is not
Toshiba lists four of these in its own manuals, and between them they explain most of the calls that turn out to be nothing.
- Three minute protection. The unit will not activate for three minutes when suddenly restarted or switched on. Toshiba states this plainly.
- Preheating. The unit warms up for five minutes before heating starts. No warm air for the first five minutes of a cold morning is the design, not a failure.
- Warm air control. When the room reaches the set temperature, the fan speed reduces automatically and the outdoor unit stops. A quiet unit doing very little is a unit that has finished its job.
- Automatic defrosting. Fans stop during defrost. Toshiba does not publish how long its defrost cycle lasts, so this page will not give you a number.
On the older receiver style units the orange lamp lights during defrost, which is why a steady orange light in the middle of a cold morning is normal.
Which Toshiba symbols point at a real fault?
Almost everything on the screen describes a setting. These are the ones worth acting on.
- A flashing orange lamp on a receiver style indoor unit. Toshiba documents this as a trouble indication.
- A check code and indoor unit number flashing on a wired controller.
- The correct mode is set, the filter is clean, and the room will not change temperature after the three minute and five minute delays have passed.
- Water appearing below the indoor unit or on the wall.
- The unit stops repeatedly and restarts on its own outside of a defrost cycle.
Everything else on this page is a setting you can change from the sofa.
Getting your Toshiba back to doing its job
Most symbols on a Toshiba are the unit telling you what it has been asked to do. A mode letter, a fan speed, a preset somebody saved months ago, an 8 degree setting quietly blocking three other buttons.
Read the chart at the top of this page, match what is on your screen, and in most cases the answer is a button press away. Worth knowing too is how often you should service your air conditioner, because on a Toshiba wall unit nothing is going to remind you about the filter.
When the symbols all look right and the room still will not behave, that is the point where guessing costs more than asking. We send a licensed technician who works on Toshiba split, multi head and ducted systems across Melbourne, and the price is confirmed before any work starts.
If the mode is set to cool and the air is still warm, that is a separate problem, and our guide on why an air conditioner blows warm air works through it.
When the settings all read correctly and the system still underperforms, our air conditioner service in Melbourne is the sensible next step, and you can request a quote first.
For your model’s manual and warranty details, see the official Toshiba Air Conditioning Australia website.
Need a technician for your Toshiba system? Read about our Toshiba air conditioner service in Melbourne, or call 03 9088 4796.
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Reviewed by AC repair and service specialist on 22 October 2026. How we write our articles