Panasonic aircon error codes: the full H and F code list

Why is my Panasonic aircon timer light blinking?

A blinking TIMER lamp on a Panasonic aircon means the unit has stopped and stored an error code. Read it with the remote: hold the CHECK button for five seconds, then press the timer up or down button until the unit beeps. The H or F code on the remote at that beep is the stored fault.

Key takeaways

• The TIMER lamp is the warning: blinking with the unit stopped means a code is stored.
• CHECK reads it: the recessed CHECK button and the timer buttons find the code in a minute or two.
• H codes point to a part, F codes to a protection: F codes mean the outdoor unit or the gas circuit kept tripping a safety limit.
• Gas and compressor codes mean stop: F91, F93, F97, F98 and F99 can damage the compressor if the aircon keeps running.

Not every blinking light is a fault. A POWER lamp that blinks before the unit switches on means an ON timer is getting ready, and a TIMER lamp that stays lit means a daily timer is set. Both are normal.

How do I read a Panasonic error code with the remote?

This is Panasonic's self-diagnosis, and it works the same way on the Panasonic wall-mounted and multi-split remotes sold in Singapore. Read the code before you switch anything off: Panasonic notes the stored code can be lost after a power cut.

1. Point the remote at the indoor unit, as you would to switch it on.
2. Press and hold CHECK for five seconds. It is a small recessed button, so use a pen tip or a pin. The remote shows "- -".
3. Press the timer up or down button, one press at a time. The first code is H00, and each press sends the next code to the unit.
4. Watch and listen after every press. When the code matches, the indoor unit beeps for about four seconds and its POWER lamp lights. When it does not match, there is no beep.
5. Write the code down or take a photo of the remote screen.
6. Hold CHECK for five seconds again to leave check mode.

A few codes let the unit keep cooling at reduced power, so it can still run while you wait for a technician. In that state it answers the remote with four beeps instead of one. Wi-Fi models with the Comfort Cloud app also show the code in the app.

Panasonic error code list

This list follows Panasonic's own error code table and its service manuals for home wall-mounted units and System 2, 3 and 4 multi-splits, in our own words. Panasonic warns that some codes may not apply to your model. We left out codes for heating, ventilation and water equipment that homes in Singapore do not use.

"Reset once" means: switch the aircon off at its isolator, wait three minutes, switch it on. "Off" means leave the aircon switched off until it is checked.

H00: no fault

Indoor unit codes

Outdoor unit codes

Wiring, matching and multi-split codes

Feature codes: Wi-Fi, nanoe, ion and ECONAVI

These belong to an extra feature, not the cooling itself.

F codes: protection that kept tripping

An F code usually means a protection tripped several times in a short spell. Below that count, the unit protects itself and restarts on its own.

Your code is not here, or the lamp is blinking right now? Message Luna on WhatsApp with the code and your model number, which is on a sticker on the side of the indoor unit, and we will tell you the next step.

Which Panasonic codes need attention first?

Some codes are worth acting on the same day:

• F91 and F97, gas. Both often mean the system is short of refrigerant. The circuit is sealed, so low gas means a leak somewhere, and topping up without finding it only buys time; our post on aircon gas leak signs explains why.
• H99, freeze-up. Usually airflow: clogged filters, a dirty coil or a blower fan caked with dust. Washing the filters is the first step. A thorough clean such as our premium servicing with PowerJet often clears it; see what a Panasonic inverter chemical wash removes from a unit like this.
• H19 and H97, fans. A fan that has stopped means the coil cannot shed its heat or cold, so keep the aircon off.
• H11, wiring. Can be a loose or damaged cable between the units, a power problem or a board fault. One reset is fine; if it returns, it needs testing on site.

Why one room or every room?

On a System 2, 3 or 4, several indoor units share one outdoor unit. An indoor code such as H19 or H99 belongs to that one room. Outdoor and F codes, such as H97, F91 or F97, usually stop every room on that outdoor unit, because they all depend on it. H12, H39, H41 and F17 only appear on multi-split systems.

Can I reset a blinking Panasonic aircon myself?

You can try once, for the codes the list marks "Reset once". Read and note the code first, because a power cut can wipe it. Then switch the aircon off at the isolator switch, wait three minutes and switch it back on.

If the fault was a one-off, such as a brief power dip, the unit may run normally. If the same code returns, the fault is real. Resetting it over and over hides the symptom while the cause gets worse, for example a compressor running short of gas.

What it costs

The cost depends on what the code points to. We diagnose first and only replace what has failed.

Repairs carry our warranty from 180 days.

When to call a technician

Call us if:

• the same code comes back after one reset
• the code is an F code, or points to a fan, the compressor or a circuit board
• the unit is not cooling, is leaking water, or is making new noises along with the blinking
• the code is one you cannot find, or the beep is hard to make out

Other brands blink and beep their own way: see our lists of Daikin error codes and Mitsubishi Electric blinking lights. Send us the code when you get in touch; it helps us bring the right parts and tools for aircon repair and troubleshooting. You can book online in under a minute, or message Luna, our AI assistant, on WhatsApp at any hour.