Dehumidifier
Where can I find brochures, manuals and installation instructions?
Last Updated: April 1, 2026We have collected user guides, brochures, manuals, installation instructions, technical documents and other related material in our documentation portal. In the documentation portal you can, among other things: Search for documents for current products Choose which sections you want to print, for example only brochures or all available documentation Access related documents The platform is available in several languages For...
Warranty certificate
Last Updated: 22 December 2025To verify your warranty eligibility, we require one of the following: order number, serial number, or a photo of your warranty card or purchase receipt. Please have this information available when you create a warranty case or contact us. If you use the link above and register a warranty case directly, you will be asked to enter the serial number of your machine. The serial number...
What does a flashing C mean?
Last Updated: 22 December 2025A flashing C on older Acetec dehumidifiers indicates that the humidity level is within the risk range according to the risk curve, which means that a function check needs to be performed. See our article on troubleshooting older dehumidifiers for further guidance.
High-temperature furnace (HT)
Last Updated: 18 December 2025If HT (high temperature alarm) appears on your display, the problem is usually due to your dehumidifier being placed in a space where the temperature has exceeded 30 degrees (or the set value for activating the high temperature alarm). To change these settings, you need to either deactivate the high temperature alarm or increase the activation value. How you do this depends on...
EvoDry PD transition phase
Last Updated: 22 December 2025In this article, we will go through the switching phases and average power. Heating phase 4 minutes (first, left part of the illustration) Heating elements are switched on in stages with a 15-second delay between stage 1 and stage 2 Drying of the sorption block Wet air is blown out through the wet gas channel Non-heating phase (6 or 10 minutes): The sorption block absorbs moisture again and dry air is blown in...
Colour change on sorption blocks
Last Updated: 18 December 2025After a period of use, the colour of the sorption blocks changes so that they may appear burnt. This is completely normal. If you still want to replace the sorption blocks, they are available for purchase on our website. Click on your dehumidifier below. Dehumidifiers manufactured AFTER 1 September 2016: EvoDry PD Dehumidifiers manufactured AFTER 1 January 2014 and BEFORE 31 August 2016: PD150 2.0 PD250 2.0 PD400...
Installation and Maintenance EvoDry PD
Last Updated: 16 December 2025Installation & Maintenance Manual EvoDry PD
The yellow LED on the small PD series circuit board
Last Updated: 18 December 2025Applies to all our dehumidifiers with a built-in circuit board as a control system. The LED on the small circuit board is located next to the knob (red) used to set the humidity setpoint. The LED lights up if the humidity is more than 2% higher than the setpoint. The LED is off if it is more than 2% drier than what...
Frost on the foundation beam
Last Updated: 18 December 2025The air temperature in crawl spaces is normally between +2 and +7 °C in winter. Within this temperature range, frost can form on the inside of the foundation beam even at low humidity. This happens if the temperature of the foundation beam falls below 0°C and the humidity in the crawl space exceeds the blue curve at the current air temperature in the crawl space. Green curve: Risk of mould at relative humidity...
Alarm codes for EvoDry PD, PD+, PDX and RD dehumidifiers
Last Updated: 18 December 2025Below you can see what the alarm codes mean for the EvoDry PD, PD+, PDX and RD dehumidifiers: 1 = Communication C = Humid according to risk curve F = Filter alarm E = Sensor alarm (on the processor card) E1 = Sensor E2 = Temperature E4 = Moisture content E7 = A combination of alarms E1, E2 and E4 E8 = Temperature outside range....
Basic settings EvoDry PD, PDX400, PD+ and RD
Last Updated: 18 December 2025Below you can see the default settings for the EvoDry PD, PDX400, PD+ and RD dehumidifiers. Parameters and default values: Current humidity level in % Current temperature in Celsius Desired humidity level (60%) Humidity control mode (Mode 1) Humidity control (Mode 2) NA Alarm delay Filter alarm (6 months), (12 months PDX400) Start sequence (0 days), (30 days PDX400)
What diameter hole saw is required for EvoDry 6?
Last Updated: 16 December 2025We recommend using a hole saw with a diameter of 80 mm to ensure that the staples fit properly.
What length of wet gas hose can be used on the EvoDry PD?
Last Updated: 16 December 2025You can have a wet gas hose up to 6 metres long. If the hose is longer than 2 metres, we recommend insulating it to prevent condensation from forming inside the hose. This does NOT apply to EvoDry 6, 12, 18 and 24.
Installation and maintenance Pro series
Last Updated: 16 December 2025Please refer to the link below for information on the installation and maintenance of our professional series. Installation and maintenance Pro
Installation and maintenance EvoDry PDX400
Last Updated: 16 December 2025Click on the link to go to installation and maintenance for Älvsbyhus PDX400: Installation & maintenance PDX
Alarm codes for EvoDry Pro dehumidifier
Last Updated: 16 December 2025A-alarm 1 = No communication between units 2 = Rotor not spinning 3 = Dry air fan 4 = Wet air fan 5 = Wet air temp 6 = Temperature sensor, control air intake 7 = Temperature sensor, wet air 8 = Temperature sensor, dry air 9 = Humidity sensor 1 10 = Temperature sensor 1 BAlarm 17 = Service alarm 18 = Climate alarm
Function check Acetec EvoDry PD, PD150, PD250 and PD400 (video)
Last Updated: 18 December 2025Instructions for functional testing of Acetec EvoDry PD, PD150, PD250 and PD400 dehumidifiers:
Function check Acetec EvoDry 6 (video)
Last Updated: 18 December 2025Instructions for checking the function of Acetec EvoDry 6 dehumidifiers:
Service and filter replacement Acetec EvoDry 6 (video)
Last Updated: 18 December 2025Instructions for servicing and filter replacement on Acetec EVoDry 6 dehumidifiers:
Function check Acetec EvoDry RD (video)
Last Updated: 18 December 2025Instructions for functional testing of Acetec EvoDry RD dehumidifiers:
Service and filter replacement Acetec EvoDry PD (video)
Last Updated: 18 December 2025Instructions for servicing and filter replacement Acetec EvoDry PD dehumidifier. Instructional video: Replacing the filter in a dehumidifier in a crawl space:
Service and filter replacement Acetec EvoDry PD150, PD250 and PD400 (video)
Last Updated: 18 December 2025Instructions for servicing and filter replacement Acetec dehumidifiers EvoDry PD150, PD250 and PD400. Instructional video: Replacing filters in dehumidifiers in crawl spaces:
Replacement of processor card and panel
Last Updated: 18 December 2025This article shows how to replace the processor board and panel on Acetec dehumidifiers with MPO panels. Applies to dehumidifiers: EvoDry PD EvoDry PD+ EvoDry 6P EvoDry 12P EvoDry 18P EvoDry 24P Replacing the processor board and panel in the event of a communication alarm. Disconnect the power supply to the dehumidifier. Open the covers on the front of the panel. Use a suitable screwdriver to remove the screws and...
Replacement of processor card and panel on PDX400 Älvsbyhus
Last Updated: 18 December 2025This guide shows how to replace the processor card and panel on Acetec dehumidifiers with PDC panels used by Älvsbyhus. Replacing the processor card and panel in the event of a fault alarm. Disconnect the power supply to the dehumidifier. Use a suitable screwdriver to remove the screws and detach the panel from the wall. The rear frame will come loose at the same time as the inner frame. Let it hang...
Dehumidifier servicing
Last Updated: 19 December 2025Do you need to service your Acetec dehumidifier? We offer several options. Service You can order a service directly on our website: Small service (6H/6P) Large service (other) How does it work? You order this service We email you a return slip You pack the dehumidifier, label the package carefully with your order number (starting with W) and drop it off at any...
Electricity consumption of dehumidifiers
Last Updated: 16 December 2025The electricity consumption of a dehumidifier is affected by many factors, such as the airtightness of the room, the volume of the room, the moisture load and the cleanliness of the filter. It is therefore not possible to say exactly how much electricity your dehumidifier will consume. Some factors that affect electricity consumption and that you can influence yourself: Installation: It is important that the dehumidifier is installed according to the installation instructions....
Warranty Acetec dehumidifier
Last Updated: 16 December 2025Read about the warranty terms for Acetec dehumidifiers.
Troubleshooting older dehumidifiers – Alarm codes
Last Updated: April 22, 2026The following alarms may occur with your Acetec dehumidifier with older controls. If you have the panel shown below, this guide is relevant for you: 1 = Communication C = Humid according to risk curve F = Filter alarm E = Sensor alarm (on the processor card) E1 = Sensor E2 = Temperature E4 = Moisture content E7 = A combination of alarms E1,...
A flashing F
Last Updated: 16 December 2025If an F flashes on your dehumidifier's control panel, it means it's time to change the filter. To reset the filter alarm, hold down the left arrow button for five (5) seconds until the F disappears. Filters can be ordered directly here. Need help choosing a filter? Check out our filter guide!
Which dehumidifier should you choose?
Last Updated: 16 December 2025Use our guide to find out which dehumidifier suits your needs. Click here to go to the dehumidifier guide.
Product registration
Last Updated: April 13, 2026To register your Acetec product, you can go directly to the product registration page here. Choose whether you want to register the product as an individual or a company. Enter the product serial number. The serial number can be found on the machine plate, warranty card or packaging. Fill in your contact details and information about the product. Once all the information is filled in, click on the ”Submit” button to finalise the registration. When...
Complaints and warranty
Last Updated: 16 December 2025In order to return your product or invoke the warranty, you must complete the form at the link below: Warranty claim notification
Email Support
Last Updated: 23 December 2025How do I contact your support team? You can reach our customer service team at support@acetec.se or call 010-288 01 10. You can also create a case directly. Opening hours: Weekdays between 7 a.m. and 4 p.m.
Replacement of PTC elements
Last Updated: 16 December 2025When replacing the heating coil, we recommend replacing all elements in the product. Always disconnect the power supply when working with your dehumidifier or unit. See the list below for how many heating elements your product has. PTC element item no. 110000. You can order PTC elements here. EvoDry PD150, 2 pcs EvoDry PD250, 2 pcs EvoDry PD400, 3 pcs EvoDry...
ModBus EvoControl
Last Updated: 16 December 2025Modbus via TCP/IP (RJ45), standard port 502, is built into the control system as standard. The parameter list (see manual) has a column that indicates which register the parameter belongs to and which values can be sent. Address = Parameter ID +1. 3 = Input register. 4 = Holding register. Values are normally sent as int16. Some parameters with larger...