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Mitsubishi Electric / Warranty information

Heat pump and air conditioning warranty

BDT’s manufacturer warranty terms for heat pump and air conditioning equipment. Read the scope, exclusions and owner responsibilities together.

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Heat pump and air conditioning warranty — page 1
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Visit www.bdt.co.nz/warranty to register your heat pump. 
Heat Pump / Air Conditioning Warranty
Warranty Coverage:
The following equipment as supplied by BDT is covered against defects in materials and factory workmanship as follows:
Issued by Black Diamond Technologies Limited (BDT), New Zealand.
This warranty applies to Mitsubishi Electric Heat Pump, Air Conditioning, Controllers, Accessories and Peripherals sold by 
Black Diamond Technologies Limited in New Zealand.
Warranty covers the equipment supplied only, it does not cover 
installation/third party components nor does it cover design or heat 
load calculations which are the responsibility of the third 
party contractor.
Warranty commences from the date the equipment is purchased and 
is applicable to the original purchaser. Equipment defects covered 
by this warranty will be repaired or replaced at the discretion of Black 
Diamond Technologies Limited without cost to the owner for parts or 
direct repair labour. A Black Diamond Technologies Limited authorised 
repair company shall carry out the repair or replacement during 
normal business hours.
Any Mitsubishi Electric parts or equipment replaced under the 
warranty will be warranted in accordance with the provisions of this 
warranty for the remainder of the original warranty period or 12 months 
from the completion of the repair, whichever is the greater.
Except where inconsistent with the owner’s statutory rights and the 
rights given by this warranty, all other warranties and all liability of 
Black Diamond Technologies Limited for any loss or damage direct 
and consequential is expressly excluded.
Important Installer Responsibilities
BDT places high importance on correct installation and long-term 
serviceability. Therefore:
•	
Installers are responsible for ensuring safe, compliant and 
adequate access to both indoor and outdoor units.
•	
Poor access impacting maintenance, service or repair is not 
considered a manufacturer fault and will not be covered under 
this warranty.
•	
BDT will not cover labour, materials, or equipment costs (such as 
scaffolding, cranes, elevated work platforms, building costs etc.) 
resulting from inaccessible, unsafe or non-compliant installations.
Excluded from Manufacturer 
Warranty Coverage:
•	
Pipework (refrigerant or condensate)
•	
Electrical cabling or control wiring
•	
Drainage systems
•	
Ducting
•	
External control devices or accessories not manufactured by 
Mitsubishi Electric
Responsibility for the performance, specification, and installation of 
these components rests solely with the installer, or end user where 
both parties have reached an agreement prior to the installation.
Special Exclusions:
1.	
Any product imported by an individual or distributor other than 
Black Diamond Technologies Limited, is not covered under 
this warranty.
2.	
Any labour costs inflated by difficult access to either the indoor 
or the outdoor unit, and any extra costs due to difficult access 
to equipment. Any costs or additional labour associated with 
gaining acceptable service access to equipment installed in 
restricted or unsafe locations. Includes crane, lift platform, hiab 
costs where access necessitates the use of this equipment.
3.	
Incorrectly sized or installed systems, and/or remedial work 
(including system replacement) where systems have been 
incorrectly sized or installed.
4.	
All equipment components, including both indoor and outdoor 
units, installed in corrosive or potentially corrosive environments 
(including but not limited to; coastal, geothermal, industrial or 
chemically contaminated environments, or where insufficiently 
filtered outside air is introduced indoors) must be assessed along 
with microclimatic factors and provided with corrosion protection 
appropriate to the environment prior to installation. Failure of 
indoor or outdoor components (and/or subsequent resultant 
damage or faults) due to corrosion or rust is not a manufacturing 
defect where corrosion protection has not been correctly 
specified, applied, or maintained. Black Diamond Technologies 
Limited does not control site conditions, aftermarket protection 
methods, or ongoing maintenance practices and therefore 
cannot accept warranty claims for corrosion-related damage, 
even where additional protection has been applied.
5.	
Discolouration, warping or deformity of the indoor unit and 
associated fixtures due to direct and/or prolonged exposure to 
UV/sunlight.
6.	
Equipment that has been re-installed at a location other than the 
original location.
7.	
Freight charges (including insurance) or travelling costs for 
repairs performed outside the area normally serviced by 
Black Diamond Technologies Limited or an authorised repair 
company (maximum of 100km round trip). 
Product
Warranty Term
M, S and P Series Split System
5 Year Parts and Labour
MXZ and PUMY Multi-Split System (including indoor units)
5 Year Parts and Labour
BDT Supplied Controllers, Accessories, Peripherals, and Ducted Kits
1 Year Parts and Labour
BlueDiamond Condensate Pump
Installed with new system*
5 Year Parts and Labour*
Retrofitted
3 Year Parts and Labour
* Only extended to 5 years if installed with a new Mitsubishi Electric Heat Pump.
Continued overleaf.

Document supplied by Mitsubishi Electric / Black Diamond Technologies. Copy checked 5 November 2026. Printed dates and model-specific notes appear in the document.

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