Searches heat pump and air conditioning codes together. The same code can mean different things on different ranges.
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Heat Pump
Fault codes, wiring, installer manuals, Adia, flow rate and heat loss calculators.
Open Heat Pump tools →❄️
Air Conditioning
Code finder with visual guides, room sizing, Free Match, LCAC and Single Split data, refrigerant tools and warranty.
Open Air Conditioning tools →On site
SCANScan a unitRating plate → specs and every tool for that model
?Fault without a codeStep-by-step by symptom — heat pump and AC
PCBComponent diagramsAUX PCB and layout pages — find the component, then ask AUX
PARTSpare partsAsk AUX for a part with model and serial filled in
CHATWhatsApp 24/7 helpline0345 257 7387 — AUX technical help, day or night
CALLAUX technical support0345 257 7387 — have the model, serial and code ready
Records
PDFCommissioning recordHeat pump or AC, with photos and signatures
PDFAnnual service recordService checklist and next due date
PDFSite surveyProperty, unit position, electrics, photos
LISTMy installsEvery unit you've fitted, with service reminders
F-GASF-Gas check & logLeak-check interval and refrigerant log
QRQR stickersSticker for each unit — scan for details and 24/7 help
HQOffice viewAll engineers' installs and services due in one list
Design
£Design & quoteUnit, cylinder, prices and BUS grant — PDF quote
LHeat pump system sizingWater volume, expansion vessel, cylinder
ACable & breakerSupply sizing to BS 7671 for each AUX unit
dBMCS 020(a) noise checkPermitted development, 37 dB(A) limit