Does switching off the breaker fix the problem?

Sometimes, and only if the manual says so: about 3 minutes for Gree, 5 minutes for LG, 2 minutes for Senville’s EL 01 code. Fujitsu says to stop the unit and call. A code that comes back after a reset needs a technician. And never cut the power during a defrost.

Why is my heat pump smoking outside?

It is almost always defrost: the outdoor unit melts its frost and the steam escapes. Heating pauses for 2 to 15 minutes depending on the brand, then resumes. Black smoke or a burning smell: turn the unit off and call.

It depends on the brand. On a Gree, E1 is high-pressure protection. On a Durastar (F1A series) and older Senville units, it’s communication between the two units. On a ForestAir E-20, it’s the room sensor. That’s why the decoder asks for the brand and series before the code.

Is it covered by the warranty?

Warranty claims usually go through the installer: Midea, Kinghome and Sharp say so in their documents. For an AirGreen installation, repairs are covered by our labour warranty; a travel fee applies to every visit, even under warranty.

What is a refrigerant leak alarm?

Units using R-32 and R-454B often have a leak sensor. Codes EHC1 (ELIOS, Midea), EH C1 (Senville, Durastar), EA (Kinghome), C554 (Samsung). The unit beeps for a few minutes and stops its compressor. Air out the room, keep any flame away and call a technician.

Why wait 3 minutes before restarting?

It is a compressor protection built in by every manufacturer we read: it won’t start again for about 3 minutes after a stop, a mode change or a power outage.

Does it heat less when it’s very cold?

Each model has a limit. On Sharp ZU and ZHU units, all three lamps blink when it is below -27 °C outside. Good news: Hydro-Québec counts fewer than 15 days below -20 °C per winter in southern and central Québec. Set your baseboards 2 to 3 °C lower than the heat pump so it heats first.

Do you service these 16 brands?

These are the 16 wall heat pump brands we install. Our Service Call page covers more than 80 brands; we are open Monday to Thursday from 8 a.m. to 6 p.m. and Friday from 8 a.m. to 4 p.m., with no 24/7 service.

Why are some brands “codes coming soon”?

We only publish codes taken from the manufacturer’s official manual. For CanAir, HAXXAIR, Zephyr, TCL and Hitachi, the code table isn’t public or isn’t readable. We will add it as soon as we have it. In the meantime, the general troubleshooting and the service call work for these brands.

Codes taken from official manuals · Sept. 25, 2026

Troubleshooting · 16 wall-mounted brands · Winter 2026

Is your wall heat pump showing a code? Decode it before you call.

Pick the brand, the series, the code. In 10 seconds you’ll know if it’s normal, if a restart is enough or if you need a technician.

Decode my code Is this normal?

E6 on a Gree: communication between the two unitsThe Gree Canada manual says: restart once. Code comes back? Call a technician.

11 brandsdecoded from the manufacturer’s manual, out of the 16 we install

E1 = 3 meaningsHigh pressure on Gree, communication on Durastar, a sensor on ForestAir

2 to 15 minof defrost depending on the brand: steam outside is normal

3 minof protection before restarting

219 codesand states explained, brand by brand

8 checksto do before you call

5 brandscodes coming soon, general troubleshooting included

01 · The decoder

Brand, series, code: the manufacturer’s answer, in plain words

Each brand has its own list, and it changes from one series to the next. Choose in order.

1The brand

2The series

The series is on the unit’s label or in your installation papers.

3The code shown

Restart onceTechnicianNormalRefrigerant

Restart onceGree · Extreme, Crossover, Vita (Gree Canada manuals)

E6

Communication between the indoor and outdoor units

1Turn the unit off with the remote.

2Do the reset the manual gives (see below).

3Code comes back? Call a technician with the code and the model.

Reset according to Gree: Unplug the unit or switch off the power, wait about 3 minutes, plug it back in and turn it on.

The same code elsewhere

ForestAirIndoor fan motor

Source: Gree Canada Extreme, Crossover and Clivia R32 operation manuals (01012025, FR and EN); GREE Comfort Sapphire and Vireo Gen3 manuals

Book a service call 514 316-2973

02 · Same code, other meaning

A “universal” code chart will mislead you

The same E1 means three different things depending on the brand. Without the brand and the series, a code tells you nothing.

Gree · Extreme, CrossoverE1

High-pressure protection

The Gree Canada manual: restart, the code normally clears. It comes back? Technician.

Restart once

Durastar · F1A seriesE1

Communication between the two units

Durastar asks you to call the service centre for all its codes.

Call a technician

ForestAir · E-20 seriesE1

Indoor temperature sensor

The ForestAir E-20 manual: contact service for this code.

Call a technician

Before you call, note three things

The brand, the series and the model

On the unit’s label or in your installation papers. Add the exact code, as it shows, and how long it has been coming back.

Lamps instead of a code?

Count them, or film them

Fujitsu, Hitachi and LG turn the fault into blinks. LG suggests filming the lamps with your phone to count them properly.

03 · Normal or not

Eight things that look like a breakdown and aren’t

Tap a card to see what the manufacturers say. In winter, this is half the calls we get.

04 · Defrost

How long has it been steaming? Compare with your brand

Defrost time according to each manual. Move the slider to see where your unit stands.

Fujitsu

Fujitsu FAQ: 7 to 15 min

LG

About 15 min

Sharp

5 to 10 min

Durastar

5 to 10 min

ELIOS

4 to 10 min (E23)

Senville

4 to 10 min (AURA)

ForestAir

2 to 10 min (E-20)

05101520 min

For how many minutes? 8 min

Normal for Fujitsu 8 min

Within the time given in the Fujitsu manual (Fujitsu FAQ: 7 to 15 min).

Heating resumes on its own when defrost ends. Let the unit do its job.

Senville adds: call if dF stays on for more than 30 minutes. Never cut the power during a defrost.

05 · Before you call

Eight two-minute checks, taken from the manuals

Tick them off as you go. If everything checks out and the code stays, it’s time to call.

0 of 8 checked8 left to check

Stop right away and call if you see:

A hot or damaged wire
A burning smell
A loud, abnormal noise
A breaker that trips often
Water getting into the unit

Instruction from the Midea and ELIOS manuals.

Refrigerant leak alarm

Codes EHC1, EH C1, EA, C554… The unit beeps for a few minutes and stops its compressor. Air out the room, keep any flame away, don’t attempt any repair and call.

Kinghome, Senville, Midea, ELIOS manuals.

No heat at all, and no code? See our electrical problems or insufficient heating page.

06 · The 16 brands

Where each brand we install stands

Tap a brand to open it in the decoder. Dotted: codes coming soon, as soon as we have the official manual.

07 · Frequently asked questions

What we get asked most on the phone

My code isn’t on the list. What should I do?

Codes change from one series to the next, even within a single brand. Write down the code exactly as it shows, the brand, the series and the model (on the unit’s label or in your installation papers), then book a service call. With those three details, the technician arrives with the right part more often.

Service call · Montréal, Laval, Longueuil, South Shore, North Shore

Code keeps coming back? Give us the brand, the series and the code: we’ll arrive prepared.

These are the 16 brands we install, and our service call covers more than 80 brands. Diagnosis and final price before we start.

Book a service call Montréal and Laval: 514 316-2973 South Shore: 514 316-3007

RBQ 5645-9605-01Subclasses 15.8 Ventilation, 15.10 Refrigeration and 16 Electricity.

$5M insuranceLiability coverage for every job in your home.

Mon. to Thu. 8 a.m. to 6 p.m. · Fri. 8 a.m. to 4 p.m.No 24/7 service. A travel fee applies to every visit, even under warranty.

Sources checked on September 25, 2026.Gree Canada, Extreme, Crossover and Clivia R32 operation manuals (01012025, FR and EN)Fujitsu General, ASUH LMAS service manuals (2021, 2022), RLS2 and LZBS1 operating manuals, troubleshooting FAQELIOS, EMC/EBC service manual (2024), E23 manual (FR/EN), 2018 service manualDurastar, F1A (V2.0 0821) and F2A (V1.0 0924) manuals, F2A warranty (V5.0 0924)LG, “Guide to Error Codes” help pages (Feb. 23, 2026), manual MFL69491102Samsung HVAC, Wind-Free 2.0 service manual (2019)Sharp HVAC Canada, ZU/ZHU and CU/CHU operation manuals; Sharp Corporation, error code listSenville, help centre (LETO and AURA guides, Apr. 7, 2025)Midea, MSGNS and MSEES/MSEHU manuals; Kinghome, Clivia, Airy, Pular manuals; ForestAir, E-20, E-23, E-38 manuals; Hitachi, airHome 400 manualHydro-Québec, energy-saving and heating tipsCodes are published only when they come from the manufacturer’s manual. The actions shown summarize the manual; when in doubt, turn the unit off and call a technician.

Language

Is your wall heat pump showing a code? Decode it before you call.

Brand, series, code: the manufacturer’s answer, in plain words

Communication between the indoor and outdoor units

A “universal” code chart will mislead you

High-pressure protection

Communication between the two units

Indoor temperature sensor

The brand, the series and the model

Count them, or film them

Eight things that look like a breakdown and aren’t

Steam coming from the outdoor unit

No warm air at start-up

It won’t restart right away

Cracking or water sounds

Water dripping from the outdoor unit

A lamp blinks while heating

The fan keeps running after shut-off

A unit that is off feels warm (multi-zone)

How long has it been steaming? Compare with your brand

Within the time given in the Fujitsu manual (Fujitsu FAQ: 7 to 15 min).

Eight two-minute checks, taken from the manuals

Stop right away and call if you see:

Refrigerant leak alarm

Where each brand we install stands

Fujitsu

Hitachi

ELIOS

Gree

LG

Durastar

Midea

CanAir

Sharp

TCL

HAXXAIR

Samsung

Senville

Kinghome

Zephyr

ForestAir

What we get asked most on the phone

My code isn’t on the list. What should I do?

Code keeps coming back? Give us the brand, the series and the code: we’ll arrive prepared.

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