Tear-down and disassembly of the Lay-Z-Spa Airjet pump unit, help find E02 E08 and other faults

This is a long video where I fully dismantle the Lay-Z-Spa Bestway Airjet pump unit. This is the older air pump model (4-wire) with airjets. The unit has one water pump with impellor, flow sensor, temperature sensor, thermal cut-out (2x) and airjet blower motor and assembly. I show how to get to each component and if needed replace the seals. (Some of this also applies to the Coleman hottubs too as they share a lot of the internal parts) The initial descaling is done using the Easy-Scale from kelvinsgadgets.co.uk order from Amazon: https://amzn.to/43L9uE9 - Updated 2023 link https://www.kelvinsgadgets.co.uk (or google Kelvins gadgets) https://ebay.co.uk/str/kelvinsgadgets Index/timecodes for specific parts to jump to: 00:00 - Introduction 4:55 - Disassembly of main casing 5:45 - Identifying the main parts 11:20 - Main circuit board/controller removal 11:45 - Water pump access and power supply (underneath) 13:00 - Water pump removal 15:00 - Water pump impellor replacement, seals replacement 16:25 - Heater/heating element removal 17:20 - Thermal cut-out 19:45 - Temperature senor removal and seal replacement 25:00 - Airjet pump 27:40 - Water flow sensor and seals 29:20 - Airjet main pipe and identification 30:50 - Airjet main motor removal 33:35 - Airjet chamber and front seals Hope you enjoy this video. All the seals and parts are listed below: Heater seals kit - https://amzn.to/3aGUlNW Water flow sensor seal - https://amzn.to/3ckdkOy Pump seals and replacement impeller - https://amzn.to/3PCjaJF Water pump seal - https://amzn.to/3ocWbZX Seals for the egg pump A & B pipes - https://amzn.to/3IJRboS HG Limescale remover (powerful and good for taps in hard water areas too!) - https://amzn.to/3uUOtHA