Intex Pure Spa BUBBLE SB-HWF20 Repair Manual

Intex Pure Spa BUBBLE SB-HWF20 Repair Manual

Spa control base

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2021SSN BUBBLE Spa Control Base Repair Guide
Item # 28442
Panel Digital
Control Panel
Tub shape
Production date
The purpose of this guide is to help you understand how to repair
the most common issues with the main heating and filtration unit.
This includes problems with the various internal sensors, the
internal computer (printed circuit board), water and air pumps.
Unplug the power cord before replacing spare parts.
Page 1
Pure Spa
Characteristic Feature
Control base #:
(New) Hexagon type
Wireless control
Round & Octagon type
Start form 2020-6-15
Introduction
IMPORTANT
Model #:
13032
SB-HWF20

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Summary of Contents for Intex Pure Spa BUBBLE SB-HWF20

  • Page 1 Pure Spa 2021SSN BUBBLE Spa Control Base Repair Guide Characteristic Feature Model #: Item # 28442 Control base #: 13032 SB-HWF20 Panel Digital (New) Hexagon type Control Panel Wireless control Tub shape Round & Octagon type Production date Start form 2020-6-15 Introduction The purpose of this guide is to help you understand how to repair the most common issues with the main heating and filtration unit.
  • Page 2 28442 Internal Part Page 2...
  • Page 3 28442 Internal Part EG image serial number DESC 13035 SPA CONTROL PANEL FOR 28439/28440/28441/28442 12913D BUBBLE SPA CONTROL BASE BACK COVER-BLACK 12770D CONTROL BASE SIDE COVER 12846 PTC HEATER FOR 28442 12848 AIR BLOWER FOR 28442 13032 SPA CONTROL BASE FOR 28440/28442 11998 SPA RCD 12914D...
  • Page 4: Table Of Contents

    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 .............................
  • Page 5 Error Code E95 ............................Error Code E97 ............................Error Code E99/ 100℃/ 000℃ ........................ END/ Heating problems ........................... Blank panel ............................... Random Display or 888 ..........................Functional Error ........................34 Air Blower Problems ..........................34 How to Replace RCD ......................36 How to replace PCB......................
  • Page 6: Pcb Schematic

    PCB Schematic New version Wi-Fi spa main circuit board has a QR code. New version Wi-Fi spa has a Wi-Fi chip with red color. Page 6...
  • Page 7: Basic Tools

    Basic Tools This is a list of basic tools required to repair almost any problem encountered with a control base. Tools such as a digital multimeter and clip-on ammeter are used to test the electrical current of various components on the control base. Psophometers are used to test certain components based on the loudness of the sound they produce.
  • Page 8: Understanding A Multi-Meter

    Understanding a Multi-Meter The range with a V and a wavy line measures AC voltage The range with a V and a straight line measures DC voltage First determine whether you will be testing for AC or DC voltage based on this guide and adjust the meter to a range above the expected reading.
  • Page 9: Basic Spa Components

    Basic Spa Components Control Base - This part houses the heater, water pump, and an air pump. Control Panel- The Control Panel has a display used to adjust temperature and provide diagnostic information when there are problems with the Control Base Spa Tub- Holds the water.
  • Page 10 Model # SB-HWF20: Code (SB)n1-(H)n2(WF)n3(20)n4 SB = Spa Bubble H = With Hard Water features WF= Wi-Fi 20 = 220-240V working wattage Page 10...
  • Page 11: The Wi-Fi Binding Failure From First Time Setup

    The Wi-Fi binding failure from first time setup Wi-Fi binding failure is mainly linking to following 2 scenarios. Scenario #1, Control panel can’t pair with the Wi-Fi router or Scenario #2, Transmission signal failure between control base and the control panel (E81) 1.
  • Page 12: Control Base Repair

    Control base repairs Wiring Schematic Main circuit Board Page 12...
  • Page 13: Opening The Control Base

    Opening the Control Base (Using 28426 as example, same layout and construction) Begin by removing 6 screws around the enclosure. Then take strength to pull out the connector. Removing 4 vertical screws around the cover that hold enclosure and then remove 2 horizontal screws.
  • Page 14: Accessing The Pcb

    Accessing the PCB Remove the 2 screws that secure the white PCB cover to reveal the PCB. Unscrew the 2 screws on the holder to remove the PCB set from the Control Base. Loosen all the screws on the PCB to remove the wires, take the PCB out from the control base. Page 14...
  • Page 15: Internal Parts

    Internal Parts Page 15...
  • Page 16 ITEM Part # Transformer 12919 Air Blower 12848 PCB (Main Circuit Board) 10066 Base 12917 20-40℃ Temperature Sensor 12025 Heating Element 12846 Flow sensor 12310 84℃ Temperature Sensor 12029 50℃ Temperature Sensor 12026 Page 16...
  • Page 17: Pcb

    Part # ITEM 12601 Water Inlet for Tub 12915 Water Outlet for Tub 12914 Air Inlet nut 11998 Electrical Cord with RCD 12778 Water Pump (Filter) Main circuit Board Black:"50C 黑" - Water Temperature Sensor White:"20~40C 白" - Water Temperature Green: "FLOW 绿"...
  • Page 18 A & B - Filter pump power input C & D - Transformer output for Filter Pump E & F – Input for control/Output of rectifier G & H - Hard water coil Letters and numbers are clearly marked on the main circuit board. Page 18...
  • Page 19: Display Errors

    Display Errors Error Code E81 This code indicates transmission signal failure of wireless spa which could be due to a problem with an internal component, such as main circuit board and switch controller board. Display E81 1. Press TEST button to turn off the spa 2.
  • Page 20 1. Press TEST button to turn off the spa, press RESET button to turn on the spa. 2. If RCD is not working, check the socket power and replace the RCD. How to replace RCD? (please refer to page#36 for more details) 3.
  • Page 21: Error Code E90

    Error Code E90 This code indicates low water pressure which could be due to an obstruction or a problem with an internal component. Ensure the correct connection between the control base and tub. The tub is filled with water to the recommended level.
  • Page 22: Error Code E90 (Flow Sensor)

    Error Code E90 (Flow Sensor) 1. Check the connection of the flow sensor. Make sure connectors are in good contact. Ensure that the pins inside the connector are not broken or bent. Color and style of connector may be different from the one shown in the photo below. To ensure you are looking at the right cable, follow it back from the PCB terminal marked FLOW.
  • Page 23: Error Code E90 (Water Pump)

    Error Code E90 (Water Pump) If the display indicates Code 90 & there is no water flow; 1. If only a click can be heard from the pump when attempting to turn on the unit, there is likely a problem with the water pump. Check the water pump for any broken parts inside. a.
  • Page 24: Error Code E90 (Transformer)

    d. Replace any broken pieces and reinstall the shaft, impeller, washer and rubber caps. Place a rubber cap on the end of the shaft and add a washer over it. Insert the end with the rubber cap into the water pump. e.
  • Page 25: Error Code E90 (Pcb)

    iii. Remove screws holding air blower to the rest of the jet. Use wrench to disconnect the threaded nut of blower. Remove 3 screws holding the black part above the transformer iv. Once the transformer has been exposed, remove 2 screws holding down the cover on the transformer.
  • Page 26: Error Code E90 (Heating Element / Heater Set)

    Error Code E90 (Heating Element / Heater Set) To change the heating element, first disconnect the flow sensor cables, temperature sensor cables, power terminals (9 to 12). Remove the 4 screws holding the heating element. Release the water tube under the heating element by hand. Disconnect the external equipotential bonding conductors on the heating element.
  • Page 27 a. Begin by swapping out the 20-40℃ water temperature sensor. Disconnect the wire connector for the sensor and clip on a new replacement. Run the control base on a spa. Change the 20-40℃ water temperature sensor if E94 have been solved, then move on to the next step.
  • Page 28: Error Code E95

    Error Code E95 This code indicates very high water temperature which could be hot water or a problem with the 50 ℃ water temperature sensor. Display E95 1. Add cold water if water temp. >50℃ 2. Replace 50C temperature sensor 3.
  • Page 29: Error Code E97

    Error Code E97 This code indicates dry--fire protection which could be due hot water or a problem with the 84℃ thermal fuse. Display E97 1. Remove cartridge and run heat system. 2. Replace 84C temperature fuse 3. Or replace a PCB Run heat 1 min., E97? Go Back to Next Step...
  • Page 30: Error Code E99/ 100℃/ 000

    Error Code E99/ 100℃/ 000℃ This code indicates a bad 20-40 ℃ water temperature sensor. Run the filtering function for 1 minute. If the spa display does not indicate an error code and the unit is circulating water without issue, no further troubleshooting is necessary. Display E99/100/000/212 1.
  • Page 31: End/ Heating Problems

    END/ Heating problems This code indicates if after 72 hours of continuous heating operation, the system will hibernate automatically. The defect reason could be heater or a problem with PCB. Display END Run heat 5 min., heater current 4~6A each one? 1.
  • Page 32: Blank Panel

    Blank panel A blank reading on a spa Control Panel indicates components such as RCD failure, PCB failure or a connection issue between the Panel & Base. Plug in and Reset RCD Reactive the panel Panel Blank? Replace a control panel, run system Panel Blank? 1.
  • Page 33: Random Display Or 888

    Random Display or 888 If the display is showing random numbers or all the LEDs are lit up, it is possible that there is a problem with the panel or PCB. Random Display/ Code 888 1. Replace Control Panel 2. Replace PCB Random Code? Go Back to Next Step In addition, restart the control base and panel.
  • Page 34: Functional Error

    Functional Error Air Blower Problems Issues with the air can be due to a defective air pump, bad tub, and damaged or missing seals. Problems with the air pump could also be due to it becoming overheated. No Bubble Run Bubble, bubble come out? 1.
  • Page 35 If the air blower is too noisy: 1) First check the sound on the air blower is making with a psophometer. The Control Base should not be attached to a Tub. Run the air blower function and check for the noise level using the psophometer.
  • Page 36: How To Replace Rcd

    How to Replace RCD 1. Plug in the Control Base and test the RCD “TEST” and “RESET” functions. In the event the RCD fails, replace the RCD. 2. Change the Control Panel with a new one. Check terminals (1&2) for wall voltage. If there is no voltage, check the electrical outlet and RCD.
  • Page 37: How To Replace Pcb

    How to replace PCB 1. Refer to the instruction of Opening the Control Base to remove the screws and open the cover. 2. Remove the 2 screws that secure the white PCB cover to reveal the PCB. Once PCB internal layout is appearing.
  • Page 38: How To Replace The Broken Base Of Spa Control

    How to replace the broken base of spa control unit 1. Refer to the instruction of opening the Control Base to remove the screws. 2. Turn over the whole control unit and remove the base. 3. Replace a new base and install it back, turn it back to the front and lock the screws. Page 38...
  • Page 39: How To Replace Switch Controller Board

    How to replace switch controller board 1. Refer to the instruction of Opening the Control Base to remove the screws. Pig.1 Pig.2 Pig.3 Pig.4 Pig.5 2. Loosen the buckle showing on pig.2, and then remove the 4 screws to replace the switch controller board.

This manual is also suitable for:

28442

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