Gree is one of the biggest air conditioner makers in the world, and its heat pumps have been sold in New Zealand for just over 20 years. Realcold NZ Ltd distributes them here, issues the warranty and supplies a network of 128 authorised dealers through nine distribution centres around the country. You buy a Gree through one of those dealers, and that dealer installs it.
There’s a catch in the warranty, and it’s the yearly service rule. Miss a service and the cover is void.
What Gree heat pumps can you buy in NZ?
Most of the residential range is wall units, and several are named after New Zealand birds, which makes them easier to keep straight than a list of model codes.
- Weka Plus: the newest wall unit, with a matte finish, enclosed double louvres and Wi-Fi fitted at the factory at no extra cost. Seven sizes, from 2.7 to 8.5 kW cooling and 2.9 to 9.0 kW heating.
- Weka I: the earlier Weka, also in seven sizes, from 2.25 to 8.5 kW, with factory-fitted Wi-Fi.
- Kea AI: the top wall unit, in white or black. It learns how you use it to trim power use, has a self-cleaning cycle that heats the indoor coil to 56°C, and a hybrid defrost that can keep heating for up to 10 hours before it pauses, with each defrost lasting two to three minutes.
- Kingfisher: a compact wall unit with built-in Wi-Fi.
- Bora-X: a quiet wall unit in four sizes from 2.5 to 7.1 kW, with Wi-Fi and a photocatalytic filter.
For low spots under a window, there’s the Mini Floor Mount, which can hold a room at 8°C while no one’s home so it doesn’t drop towards freezing. Floor console heat pumps are worth a look if your only wall space is low.
For several rooms, Free Match is the multi-split range, with a mix of indoor unit styles sharing one outdoor unit. Ducted homes get the U-Match ducted unit, which pairs with Gree’s Zone Control System. And the T-Fresh floor-standing unit is built for big spaces like entrances, shops and meeting rooms.
How cold can a Gree work? The Weka Plus is rated to heat at outdoor temperatures down to minus 15°C. That covers most New Zealand winters, but on a hard frost in Twizel or Ranfurly the output drops, so ask your dealer to size for your coldest mornings.
→ Related: What size heat pump do I need?
How long is the Gree heat pump warranty?
Six years parts and labour on Gree’s main home ranges: hi-walls, consoles, the T-Fresh, multi-splits, ducted units, cassettes and under-ceiling units. The Aoky window and wall unit gets three years, and the WHIO hot water heat pump gets seven. Gree accepts any industry-qualified installer for the six-year cover, so you don’t need a special accredited installer.
Six years is a long cover on paper. The conditions decide whether you actually get it, and some of these are stricter than most brands:
- Yearly service is required. The warranty is void if the unit isn’t maintained at least every 12 months by a qualified refrigeration and air conditioning tradesperson. Keep every service invoice, because the repairer will ask to see your records.
- It isn’t transferable. It covers the original buyer only. If you sell your house, the new owner doesn’t inherit it.
- It stays put. A unit reinstalled anywhere other than where it was first fitted is no longer covered.
- Travel can cost you. If you’re more than 20 km from the nearest Realcold branch or authorised agent, travel costs are yours. That matters on rural blocks and in smaller towns.
- Weathering and corrosion aren’t covered. Salt air in places like Ōhope, Kaikōura or the Kāpiti Coast takes a toll, so ask your installer about protecting the outdoor unit, and about heat pump covers.
- Filters and batteries are consumables, unless they were faulty when you bought the unit.
Your Consumer Guarantees Act rights apply on top of the warranty.
→ Related: Heat pump servicing
How do you read a Gree model number?
Gree’s series letters tell you the type of unit. Wall units are GWH, consoles GEH, the T-Fresh GVH, multi-splits GWHD, cassettes GUD-T, under-ceiling units GUD-ZD, ducted units GUD-PHS or GFH, and the window unit GJH.
The number after the letters is a size code, not kilowatts. In the Weka range, GWH09AGCXB is the smallest at 2.7 kW cooling, GWH12 is 3.5 kW, GWH18 is 5.0 kW and GWH28 is the largest at 8.5 kW. The full code ends in /I on the indoor unit and /O on the outdoor unit.
The warranty card has spaces for the indoor and outdoor model and serial numbers, who installed it and their licence number. Ask your installer to fill it in on the day and keep it with your purchase docket.
Can you control a Gree heat pump from your phone?
Gree’s wall units connect to the Gree+ app on Apple and Android, which lets you change the temperature, mode and timers from anywhere. On the Weka Plus, Weka I, Kingfisher and Bora-X, Wi-Fi is built in, so there’s nothing extra to buy or wire. The Kea AI connects over Bluetooth to set up its Wi-Fi, which cuts down the setup steps. On the Weka remote, press the Wi-Fi button to turn Wi-Fi on, and hold it for five seconds to turn it off. Smart heat pumps covers scheduling and what app control is good for.
How do you get a Gree heat pump serviced or repaired?
Book a yearly service with a qualified refrigeration tradesperson, ideally before winter. It keeps the warranty alive, and it catches problems early. In between, clean the indoor filter every three months, more often in a dusty spot. Wash it in clear water, or warm water with a mild detergent if it’s greasy, and let it dry in the shade. Before each season, check the outdoor unit’s mounting bracket for rust and the drain pipe for damage.
If the unit plays up, go through the owner’s checklist first: power on at the switchboard, controls set right, filters and drains clear, remote batteries working. Then call the dealer who installed it.
What do Gree error codes mean?
When something’s wrong, the temperature display on a Weka indoor unit flashes an error code. Codes U8, H6, H3, E1, E5, E6 and E8 may clear if you switch the unit off and restart it. If they come back, call a qualified technician. Codes C5, F0, F1 and F2 need a technician straight away, as does any code not in the manual. Other Gree models have their own lists, so check your owner’s manual on the Gree NZ website. Heat pump problems covers the common faults that never show a code.
Find a Gree installer near you
Of the 1,020 installer websites checked in October 2026, 58 mention Gree. That puts it among the smaller brands, so it pays to ask your dealer whether they also do the yearly service the warranty needs.
See the installers who fit Gree, compare the main makes in the best heat pump brands in NZ, or start from your town.