Gree Electric Appliances, based in Zhuhai, China, is one of the largest air conditioner manufacturers in the world and builds equipment under its own name and under its sister brand, Tosot. In Canada the Gree range you are most likely to own is a Sapphire or Livo wall-mounted mini-split, or a Flexx side-discharge heat pump connected to ductwork. All of them are inverter systems, which means the compressor speeds up and slows down instead of switching on and off.
A Gree tells you what is wrong on the indoor unit's display, as a letter and a number. Write the code down before you switch anything off. Then check it against our Gree mini-split error codes guide, keeping in mind that codes vary by model and the table in your own manual is the authority.
H1 deserves its own paragraph because it causes more unnecessary service calls than any real fault. In heating mode, frost builds on the outdoor coil; the unit reverses for a few minutes to melt it, the indoor fan stops, and the display shows H1. Steam rising off the outdoor unit and a pause in warm air are normal. Our explainer on the heat pump defrost cycle covers when a defrost is too long or too frequent.
Refrigerant work on any Gree must be done by a technician holding an Ontario ODP card, and a new circuit for an outdoor unit is electrical work that falls under the ESA. We service Gree equipment regardless of who installed it, and we are an independent contractor rather than part of Gree's dealer network.
Gree lines we install and service
Gree's flagship single-zone wall mount and the one sold for cold-weather heating. Before relying on any mini-split as the only heat in a room, check the capacity the spec sheet lists at low outdoor temperatures for your exact model, not the headline rating at mild conditions.
The value wall-mounted line, sold in several generations including Livo+, Livo Gen4 and an R-32 version. The generation matters when it leaks, because the refrigerant on the nameplate decides what goes back in. Never let anyone mix refrigerants in one system.
A side-discharge inverter heat pump that connects to an air handler or to a coil above an existing furnace, so it heats and cools through the ducts you already have. The slim cabinet blows out the front instead of the top, which helps in the narrow side yards between houses in 1970s to 1990s subdivisions.
Tosot is Gree's sister brand, built by the same manufacturer. A Tosot wall mount follows the same service logic as a Gree, and we work on both. Use the Tosot manual for the code table and the Tosot paperwork for warranty.
What goes wrong on Gree equipment
E6: the indoor and outdoor units have stopped communicating
Turn the breaker off for five minutes and back on; a one-time E6 after a power flicker often clears. If it returns, the fault is in the cable between the two units or in a control board. We look first for a loose terminal, a corroded connection at the outdoor unit, a splice hidden in the line-set cover or cable of the wrong type. Wiring corrections sit at the low end of the $150–$800 repair range; a board is a brand-specific part, and we quote it once the part number is confirmed.
F0: low-refrigerant protection
The system has decided it does not have enough refrigerant to run the compressor safely and has shut down. A sealed system never uses refrigerant up, so F0 means a leak, most often at a flare connection behind the indoor head or at the outdoor service valves. Switch it off; running low on charge is how compressors die. The repair is a nitrogen pressure test, a remade flare, a deep vacuum and a charge weighed in to the nameplate figure: $300–$800+ depending on how hard the leak is to reach.
H6: the indoor fan motor is not reporting
The board sent power to the indoor fan and got no speed signal back. Sometimes the blower wheel is packed with dust and cannot turn, sometimes a connector has worked loose, and sometimes the motor has failed. A fan motor replacement runs $300–$700. If the head has never been cleaned, a mini-split cleaning is the cheaper first step and often the cure.
Water dripping from the indoor head
Not a code, but the most common Gree complaint in a humid July near Lake Ontario. The condensate drain is blocked with slime, or the head was mounted without enough slope toward the drain side. Clearing a drain line is a $150–$450 visit. Turn the unit off until it is fixed, because the water is running down the inside of your wall.
Gree warranty: what to know
- Gree warranties are registration-based. The years you get depend on registering the system after installation, and the base term applies if that step was skipped. Find the warranty statement that shipped with the unit and read the dates on it.
- Terms differ by product line and by how the system was sold. A Sapphire or a Flexx does not necessarily carry the same coverage as a Livo, so do not rely on a neighbour's paperwork or a forum post.
- Expect a parts warranty, not a labour warranty. Diagnosis, refrigerant and the hours to fit a component are normally the owner's cost unless your installer gave you a separate labour guarantee in writing.
- Keep the installation invoice. A claim on a mini-split is far stronger when it shows a licensed contractor's name, the commissioning date and the model and serial numbers of both the indoor and outdoor units.
Parts availability in the GTA
Gree parts fall into two groups. Control boards, fan motors, sensors and electronic expansion valves are specific to the model, come through Gree's own distribution and are usually ordered, so we need the model numbers from both the indoor and the outdoor nameplates before we can price one. Everything around the equipment is generic and on the truck: flare nuts, line-set insulation, communication cable, disconnects, condensate pumps and drain fittings. If a board is on order during a cold week and the Gree is your main heat, tell us when you call so backup heat is part of the plan and not an afterthought.
Gree Mini-Split Error Codes Explained — what each one means and whether it is safe to keep running.
Common questions
My Gree shows H1 and stopped blowing warm air. Is it broken?
No. H1 is defrost mode. The outdoor coil frosts over in cold, damp weather, and the unit reverses briefly to melt it; the indoor fan pauses so it does not blow cold air at you. Heat returns by itself after several minutes. Call only if the outdoor unit stays encased in ice or H1 never clears.
Can I keep running my Gree with an E6 or F0 code?
With E6 the unit will not run anyway, so try one breaker reset and then call. With F0, switch it off and leave it off. Low refrigerant means the compressor is running hot and poorly lubricated, and a compressor costs far more than the leak repair that would have saved it.
Do you install Gree systems or only repair them?
Both. A single-zone ductless install runs $4,000–$7,000 depending on line-set length, electrical work and the model. If you are counting on a rebate, ask first: heat pump rebates run through the Home Renovation Savings Program, the installer must be a participating contractor, and approval comes before the install. Details are on our Ontario heat pump rebates page.
Is Tosot the same as Gree?
Tosot is a sister brand made by Gree, so the components and the service approach are closely related. The paperwork is not shared: a Tosot is registered and claimed as a Tosot. We repair both, and we read the code table in the manual for the model on your wall instead of assuming the two match line for line.
When is a Gree mini-split not worth repairing?
When it is over 12 years old and the failed part is the compressor or the outdoor board, a replacement usually makes more sense than the repair. Leaks at flares, fan motors, sensors and drains are worth fixing at almost any age. We give you both numbers in writing so the decision is yours.