Page 4
Table of contents
PCB Schematic ....................................................................................................................... 6
Basic Tools .............................................................................................................................. 7
Understanding a Multi-Meter ................................................................................................ 8
Basic Spa Components ........................................................................................................... 9
The Wi-Fi binding failure from first time setup ..................................................................... 11
Offline after Successful Initial Setup ..................................................................................... 11
Control base repair .............................................................................................................. 12
Wiring Schematic ..................................................................................................................................... 12
Opening the Control Base .................................................................................................... 13
Accessing the PCB ................................................................................................................ 14
Internal Parts ....................................................................................................................... 15
PCB ...................................................................................................................................... 17
Main circuit Board .................................................................................................................................... 17
Display Errors ....................................................................................................................... 19
Error Code E81 ......................................................................................................................................... 19
Error Code E90 ......................................................................................................................................... 21
Error Code E90 (Flow Sensor) .......................................................................................................................... 22
Error Code E90 (Water Pump) ......................................................................................................................... 23
Error Code E90 (Transformer) .......................................................................................................................... 24
Error Code E90 (PCB) ......................................................................................................................................... 25
Error Code E90 (Heating Element / Heater Set) ........................................................................................... 26
Error Code E94 .................................................................................................................................................... 26