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