WJ-004 - Heating Vevor - Free user manual and instructions
Find the device manual for free WJ-004 Vevor in PDF.
| Product Type | Heating Wood Sauna |
| Brand | Vevor |
| Model | WJ-004 |
| Power | 2580 W |
| Supply Voltage | AC 220-240 V |
| Frequency | 50/60 Hz |
| External Dimensions (L x W x H) | 2705 x 1050 x 1900 mm |
| Material | Wood |
| Heating Type | Radiant Heaters |
| Control | Electronic with digital display |
| Adjustable Temperature | Yes |
| Timer | 1 to 99 minutes |
| Audio System | Bluetooth, FM, MP3, USB, SD |
| Lighting | LED interior/exterior and colored light |
| Oxygen Ionizer | Yes |
| Capacity | 1-2 persons |
| Safety | Automatic shut-off after 2h, various protections |
| Maintenance | Regular cleaning with soap, sanding if necessary |
| Warranty | 12 months against defects, lifetime replacement of heaters |
| Package Contents | Floor panels, rear, left, right, front, seat, etc. |
| Accessories | Towel rack, cup holder, magazine rack, handle |
| Installation | Requires 2 adults, flat and dry surface |
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USER MANUAL WJ-004 Vevor
Technical Support and E-Warranty Certificate www.vevor.com/support
WOOD SAUNA
MODEL: WJ-004
We continue to be committed to provide you tools with competitive prices. "Save Half", "Half Price" or any other similar expressions used by it represent an estimate of savings you might benefit from buying certain tools compared to the major top brands and does not necessarily mean all categories of tools offered by us. You are kindly reminded to verify when you are placing an order with us if you are actually saving in comparison with the top major brands.
MODEL: WJ-004

NEED HELP? CONTACT US!
Have product questions? Need technical support? Please feel free to contact us: Technical Support and E-Warranty Certificate www.vevor.com/support
This is the original instruction. Please read all manual instructions carefully before use. VEVOR reserves a clear interpretation of our user manual. The appearance of the product shall be subject to the product you received. Please forgive us that we won't notify you again if there are any technology or software updates on our product.
1) CAUTION
1) Check all the circuitry and the plug connections carefully. 2) Install a voltage regulator if the power is unsuitable. 3) Do not share the outlet with other electrical appliances to avoid danger. 4) Do not use the sauna room if under the influence of alcohol, drugs, or medications. 5) Pregnant women or persons with poor health should consult their physicians before use. 6) Minors should be supervised in order to prevent injury. 7) Allow up to 30 minutes heat up time. 8) Do not use the room for drying clothes, bathing suits, etc. 9) Do not put animals in the room. 10) After 2 hours of continuous use, shut the sauna down for one hour.
| Part List | ||||
| Code | Picture | Name | QTY. | |
| 1 | ![]() | Floor panel | 1 | |
| 2 | ![]() | Back panel | 1 | |
| 3 | ![]() | Left panel | 1 | |
| 4 | ![]() | Support under seat | 1 | |
| 5 | ![]() | Shank panel | 1 | |
| 6 | ![]() | Seat panel | 1 | |
| 7 | ![]() | Right panel | 1 | |
| 8 | ![]() | Font panel | 2 | |
| 9 | ![]() | Handler | 1 | |
| 10 | ![]() | Top panel | 1 | |
| 11 | ![]() | Cover | 1 | |
| 12 | ![]() | Oxygen bar | 1 | |
| 13 | ![]() | Cup holde | 2 | |
| 14 | ![]() | Book holder | 1 | |
| 15 | ![]() | Towel holder | 1 | |
| 16 | ![]() | Bench support | 1 | |
| 17 | ![]() | Screws for outer to ST4*60mm | 6 | |
| 18 | ![]() | Screws ST3*20mm | 2 | |
| 19 | ![]() | Universal screws ST3*30mm | 20 | |
| 20 | ![]() | Screws for towel holder ST3 5*40mm | 4 | |
| 21 | ![]() | Screws for cover ST3*16mm | 26 | |
| 22 | ![]() | Screws for support under seat ST4*50mm | 15 | |
| 23 | ![]() | Plastic plug for scre holes 8*13mm | 20 | |
| 24 | ![]() | Dry paste for scre holes | 24 | |
| Model | Power (W) | Voltage (V) | Frequency (Hz) | Plug Type |
| WJ-004 | 2580 | AC 220-240 | 50 | European Standard |
| 50 | Ausstandard | |||
| 60 | American Standard |
1. INSTALLATION PROCEDURE
CAUTION:
1) No plumbing or plumbing fixtures should be placed in the sauna.
2) Keep all liquids away from the heating panels.
3) Install sauna on a completely level surface.
4) Install sauna in an area that is dry.
5) Flammable objects and corrosive chemical substances should be kept far away from the sauna.
Each side panel has a white label to identify the side and direction. The panel with
the label should be placed on the left side according to the sauna (view from outside the sauna). The same goes for the other panels.
※ For Square Style
(The following pictures are for your reference. If your sauna has some differences from the pictures, please just follow the steps. Please read this direction carefully before use and keep it cautiously for the future. You should not try to install the sauna on your own, as damage will easily occur. This sauna requires at least 2 adults to complete assembly.

1) Open sauna packages in a large area.
Place floor panels at the desired horizontal ground position.

2) Locate Back Panel on the Floor panel. (This step requires someone to gently hold the panel.)

3) Locate Left Panel on the Floor panel in the same way. Close the buckle.

4) Locate Shank panel between the two slips of left wall.

5) Locate the support under seat and screw the support. Connect the terminals on the panel. (ST4*50CM)

6) Locate seat panel.

7) Locate Right Panel on the Floor panel in the same way.

8) Locate front panel.

Install the handler.
You will get the following handle.

Step 1: Divide the handle as shown in the picture below.

Step 2: Place the handles on the left and right sides of the glass and fasten them.

7) Install the top and thread the wire through the hole to the top, and connect all according to the line numbers (1,2,3...).

Connect the wires on the top. Please refer to the pictures below (3 steps).



9) Install the top with screws for the outside top as shown below. (ST4*60mm)

8) Raise the internal top ceiling above the panels, while pulling the wires of the front and back through the hole in the ceiling, and fix the cover with a screw. (ST3*16mm)

Whole Sauna

For towel rack, cup holder, magazine holder, and oxygen ionizer installation
Although there are small pre-drilled holes for the placement of these items, the towel rack, magazine holder, and cup holder can be placed wherever you prefer as long as you do not damage the wood. If installing in a different location, it would be a good idea to pre-drill the holes to tighten the screws. The oxygen ionizer should be installed in the upper left of the back panel.
There is a small wire that should be fed from the top panel. The following figure suggests installation position.
| Oxygen Ionizer | Speaker | Color Light |
![]() | ![]() | ![]() |
| Cup Holder | Towel rack | Magazine |
![]() | ![]() | ![]() |
![]() | ![]() | ST3*30mm |
![]() | ![]() | ST3*30mm |
![]() | ![]() | ST3.5*40mm |
![]() | ![]() | ST3*20mm |

2. HOW TO USE INSTRUCTIONS
1) CAUTION
11) Check all the circuitry and the plug connections carefully. 12) Install a voltage regulator if the power is unsuitable. 13) Do not share the outlet with other electrical appliances to avoid danger. 14) Do not use the sauna room if under the influence of alcohol, drugs, or medications. 15) Pregnant women or persons with poor health should consult their physicians before use. 16) Minors should be supervised in order to prevent injury. 17) Allow up to 30 minutes heat up time. 18) Do not use the room for dying clothes, bathing suits, etc. 19) Do not put animals in the room. 20) After 2 hours of continuous use, shut the sauna down for one hour.
2) USE ENVIRONMENT
1) Temperature: 15~65°C; Time: 1-99 minutes
2) Relative humidity: ≤85%;
3) Atmospheric pressure: 700 hPa~1060 hPa;
3) CHARACTERISTICS
(1) Wooden frame; (2) Electronic controls and constant temperature automatically; (3) Imported high-precision numerical transporter; (4) Electronic keying; (5) Radiant heaters;
Warm tip: Before use, all the connection cables of the controller must be connected.
- Display window: the window displays temperature, compatible with Celsius and Fahrenheit displays.
- Display window: the window displays the remaining time of the timing.
- LED indicators: Power indicator (red): On when power is on. Heating indicator (green): On when heating is on, off when heating is off. Fahrenheit indicator (red): On indicates that the temperature displayed is in Fahrenheit. Celsius indicator (red): On indicates that the temperature displayed is in Celsius.
- On/Off: Press the power on/off button once.
- "Light" key, light switch, press once: internal light on, external light off. Press again: inner and outer light on. Then press in turn for full on - full off.
- LED color light key: Press once to turn on/off: When the color light is on, hold down the color and the temperature digital tube displays "LX" (X is 1-9), and "X" flashes. Then press the "color light" key, you can change the color and change the state of the LED.
- Temperature "-" and "+" keys: Adjust the temperature, hold down the key to quickly change status: Hold down for 5 seconds, automatically search the radio frequency and save. After the search is over, press once to select the next frequency.
- Time "+" and "-" keys: Adjust the time, press and hold the key to change quickly. You can adjust the volume only when you enter the "FM" or "MP3" mode and press the "+" or "-" keys.
9. G03 Bluetooth multi-function player description

1) Mode conversion FM-AUX-BLUE-SD-USB
With each click, a function is replaced, where the Bluetooth name is G-811.
- Hold down the temperature "+" and "-" keys at the same time, Fahrenheit and Celsius temperature conversion.
- Press and hold the time "+" and "-" keys at the same time, and the time digital tube displays "--", which can work for a long time. Press it again at the same time to cancel the long work and display the remaining time set last time.
The fault code:
1) If the temperature sensor is faulty (on, short circuit), the temperature digital tube displays: "EE". 2) Display temperature ≥75°C, temperature digital tube displays "H".
5) TROUBLESHOOTING
I. The light bulb is out of order.
| Possibility | Repairing Method | |
| 1 | The bulb fuse is burned up. | Change a bulb. |
| 2 | The bulb and the socket are not con well. | Pull out the bulb and check the socket, the socket if necessary. Then plug it ba |
| 3 | The fuse is burned up. | Change a fuse. On the top of ceiling |
II. The control panel is out of order.
| Possibility | Repairing Method | |
| 1 | The cable of control panel is connected well. | Check the cable connection and fix it prop |
| 2 | The fuse is burned up. | Change a fuse. On the top of ceiling |
| 3 | The indicator light of power is or no led display | Most likely will need a new control pane |
III. The heaters are out of order.
| Phenomenon | Possibility | Repairing Method |
| 1 One of heaters cannot heat. | 1) The heater is not connected properly | Check connection |
| 2) The heater needs replacement | Replace heater | |
| 2 All heaters can heat. | 1) The power plug is not connected properly | Check power plug |
| 2) The heaters are not properly connected | Fix the connections | |
| 3) Relay malfunction | Change relay | |
| 4) Control panel malfunction | Change control panel |
CIRCUIT DIAGRAM
![graph TD A["HEAT1"] --> B["FUSE"] C["HEAT2"] --> B D["HEAT3"] --> B E["HEAT4"] --> B F["HEAT5"] --> B G["HEAT6"] --> B H["OUTSIDE LIGHT +12V"] --> I["INSIDE LIGHT +12V"] I --> J["SPEAKER"] K["MAIN"] --> L["MAIN DISPLAY"] M["RGB"] --> N["RGB"] O["RGB-LED"] --> P["RGB-LED"] Q["Oxygen"] --> R["MAIN DIS…](/content/2026/04/734265/images/7dd60660427ab46955082e0657b417940f6eb85d99d8f58af5f7f58956e8b118.jpg)
6) MAINTENANCE
I. The sauna room should be kept clean and odor free.
II. Damp towels should always be used on benches; otherwise, perspiration penetrates the soft wood. III. Air out the room often by keeping the door and vents open when the room is not in use. IV. Saunas that are in daily use should be washed down at least once a week to keep the air fresh.
V. Inspect benches regularly for required maintenance.
VI. To clean and remove perspiration stains, use soap or detergent in warm water, best applied with a scrub brush.
VII. Badly soiled surfaces may require sanding. Sandpaper wrapped around a wooden block works well.
7) WARRANTY
I. Please fill in the warranty card on the following page within 30 days to register your sauna and receive a full warranty.
We guarantee our sauna against defective material and/or workmanship for a period of 12
from the purchase date. We warrant the replacement of heaters and any electronic component associated with the sauna for the life of the sauna to its original purchaser. Variations in texture, color, and normal wear are not covered by any warranty. We do not warrant the CD/DVD/LCD System as it carries its own manufacturer's warranty. The warranty is deemed void if the sauna has been misused, altered, or exposed to the elements. Any deviation from the instruction manual causing damage to the sauna will not be covered under warranty. Our Saunas and its subsidiaries and/or associates shall not be held responsible for any misuse of the sauna by the customer. Our Saunas shall not be liable for any damage and/or injury caused by the customer's use of the product. Customers shall use the sauna at their own risk. Conditions are subject to change without notice.
II. Any damages sustained to the sauna set during transportation are not covered by this warranty. Claims for damage must be filed through the transport/shipping company. Any damage must be reported on the Bill of Lading through the transport shipping company.
III. You are welcome to give us suggestions.
DISCLAIMER
Our Saunas and its associates do not provide medical guidance. Consult a doctor for medical advice. All of the information contained in this manual is for informational purposes only. We reserve the right to change, without notice, anything contained within the manual. Our Saunas shall not be held responsible for printing variations. Color variations may occur. Some models are shown with optional features.
Made In China
VEVOR®
TOUGH TOOLS, HALF PRICE
Technical Support and E-Warranty Certificate
www.vevor.com/support
VEVOR®
TOUGH TOOLS, HALF PRICE
NEED HELP? CONTACT US!


Whole sauna
![]() | ![]() | ST3*30mm |
![]() | ![]() | ST3*30mm |
![]() | ![]() | ST3.5*40mm |
![]() | ![]() | ST3*20mm |

2. HOW TO USE THE INSTRUCTIONS
1) CAUTION
- Hold down the temperature "+" and "-" keys at the same time to switch between Fahrenheit and Celsius temperature display.
- Press and hold the time "+" and "-" keys at the same time, and the time digital tube displays "--", which can work for a long time. Press it again at the same time to cancel the long work and display the remaining time set last time.
The fault code:
1) If the temperature sensor is faulty (on, short circuit), the temperature digital tube displays: "EE". 2) Display temperature ≥75°C, temperature digital tube displays "H".
5) TROUBLESHOOTING
www.vevor.com/support
VEVOR®
TOUGH TOOLS, HALF PRICE
NEED HELP? CONTACT US!


Whole sauna
![]() | ![]() | ST3*30mm |
![]() | ![]() | ST3*30mm |
![]() | ![]() | ST3.5*40mm |
![]() | ![]() | ST3*20mm |

- Hold down the temperature "+" and "-" keys at the same time, Fahrenheit and Celsius temperature conversion.
- Press and hold the time "+" and "-" keys at the same time, and the time digital tube displays "--", which can work for a long time. Press it again at the same time to cancel the long work and display the remaining time set last time.
The fault code:
1) If the temperature sensor is faulty (on, short circuit), the temperature digital tube display: "EE". 2) Display temperature 75°C , temperature digital tube display "H".
5) TROUBLESHOOTING
www.vevor.com/support
VEVOR®
TOUGH TOOLS, HALF PRICE
NEED HELP? CONTACT US!
8) Identify the front panel.



Whole sauna
![]() | ![]() | ST3*30mm |
![]() | ![]() | ST3*30mm |
![]() | ![]() | ST3.5*40mm |
![]() | ![]() | ST3*20mm |

2. HOW TO USE THE INSTRUCTIONS
1) WARNING
- Hold down the temperature "+" and "-" keys at the same time to switch between Fahrenheit and Celsius temperature display.
- Press and hold the time "+" and "-" keys at the same time, and the time digital tube displays "--", which allows continuous operation. Press them again simultaneously to cancel continuous operation and display the remaining time set last time.
Fault codes:
1) If the temperature sensor is faulty (open or short circuit), the temperature digital tube displays "EE". 2) If the displayed temperature is ≥75°C, the temperature digital tube displays "H".
5) TROUBLESHOOTING
www.vevor.com/support
VEVOR®
TOUGH TOOLS, HALF PRICE


Whole sauna
![]() | ![]() | ST3*30mm |
![]() | ![]() | ST3*30mm |
![]() | ![]() | ST3.5*40mm |
![]() | ![]() | ST3*20mm |

2. INSTRUCTIONS FOR USE
1) CAUTION
- Hold down the temperature "+" and "-" keys at the same time to switch between Fahrenheit and Celsius temperature.
- Press and hold the time "+" and "-" keys at the same time, and the time digital tube displays "--", which can work for a long time. Press it again at the same time to cancel the long work and display the remaining time set last time.
The fault code:
1) If the temperature sensor is faulty (on, short circuit), the temperature digital tube displays: "EE". 2) Display temperature ≥75°C, temperature digital tube displays "H".
www.vevor.com/support
VEVOR®
TOUGH TOOLS, HALF PRICE
NEED HELP? CONTACT US!


Whole Sauna
![]() | ![]() | ST3*30mm |
![]() | ![]() | ST3*30mm |
![]() | ![]() | ST3.5*40mm |
![]() | ![]() | ST3*20mm |

2. HOW TO USE THE INSTRUCTIONS
1) NOTE
- Hold down the temperature "+" and "-" keys at the same time to switch between Fahrenheit and Celsius temperature display.
- Press and hold the time "+" and "-" keys at the same time. The time digital tube displays "--", indicating continuous operation. Press both keys again to cancel continuous operation and display the remaining time set last time.
Fault codes:
1) If the temperature sensor is faulty (open or short circuit), the temperature digital tube displays "EE". 2) If the displayed temperature is ≥75°C, the temperature digital tube displays "H".
5) TROUBLESHOOTING
www.vevor.com/support
VEVOR®
TOUGH TOOLS, HALF PRICE
Technical support and e-warranty certificate: www.vevor.com/support
WOOD SAUNA
MODEL: WJ-004
NEED HELP? CONTACT US!
Install the handler.


Whole sauna
![]() | ![]() | ST3*30mm |
![]() | ![]() | ST3*30mm |
![]() | ![]() | ST3.5*40mm |
![]() | ![]() | ST3*20mm |

2. HOW TO USE THE INSTRUCTIONS
1) NOTE
- Hold down the temperature "+" and "-" keys at the same time, Fahrenheit and Celsius temperature conversion.
- Press and hold the time "+" and "-" keys at the same time, and the time digital tube displays "--", which can work for a long time. Press it again at the same time to cancel the long work and display the remaining time set last time.
The fault code:
1) If the temperature sensor is faulty (on, short circuit), the temperature digital tube display: "EE". 2) Display temperature 75°C , temperature digital tube display "H".
5) TROUBLESHOOTING
I. The light bulb is defective
www.vevor.com/support
VEVOR®
TOUGH TOOLS, HALF PRICE
NEED HELP? CONTACT US!
www.vevor.com/support
8) Locate the front panel.

Install the controller.


Whole sauna
![]() | ![]() | ST3*30mm |
![]() | ![]() | ST3*30mm |
![]() | ![]() | ST3.5*40mm |
![]() | ![]() | ST3*20mm |

2. HOW TO USE INSTRUCTIONS
1) WARNING
- Hold down the temperature "+" and "-" keys at the same time to switch between Fahrenheit and Celsius temperature display.
- Press and hold the time "+" and "-" keys at the same time, and the time digital tube displays "--", which can work for a long time. Press it again at the same time to cancel the long work and display the remaining time set last time.
The fault code:
1) If the temperature sensor is faulty (on, short circuit), the temperature digital tube display: "EE". 2) Display temperature 75°C , temperature digital tube display "H".
5) TROUBLESHOOTING
www.vevor.com/support


























































