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Aktobis AG, Borsigstr. 20, D-63110 Rodgau / Germany 

www.AKTOBIS.de

 

Email: [email protected] 

 
 

Troubleshooting 
 

The unit is icing up. 
 
In cold temperatures or long periods of continuous operation, the unit may freeze up despite the defrost sensor. In 
this case, we recommend that you manually defrost the unit by switching it off and warming the room slightly. 
 
The unit does not dehumidify enough. 
 
Please remember that the primary aim is not to gain as much condensation water as possible, but to dry and/or 
keep dry the room air or ceilings, walls and inventory ! 
 
Furthermore, bear in mind that the building dryer can only remove moisture from the air and only indirectly from 
materials (screed/plaster). Depending on the condition of the ceilings, walls and fixtures, it can take several weeks 
before they release the stored moisture back into the air! For this reason, we also recommend that if you use your 
own humidity meter (hygrometer), you place it as freely as possible and somewhat away from walls and ceilings, 
because otherwise the determined humidity value of the room air will be falsified!!! 

 

As with all building dryers, the dehumidification performance is decisively influenced by the following factors: 
A) Humidity content of the room air and B) Heat/temperature in the room.  
For safety's sake, here is an approximate dehumidification table for DURABLE OPERATION:  

 

35 degrees 

and 90% RH = approx. 40 litres (optimum or maximum capacity). 

 

30 degrees 

and 80% r.h. = approx. 35 litres 

 

and at 60% r.h. = approx. 18 litres 

20 degrees 

and 80% r.h. = approx. 18 litres 

 

and at 60% r.h. = approx. 11 litres 

15 degrees 

and 80% r.h. = approx. 14 litres 

 

and at 60% r.h. = approx. 8 litres 

10 degrees 

and 80% r.h. = approx. 9 litres 

 

and at 60% r.h. = approx. 6 litres 

 

All figures are approximate per day (fluctuation tolerance) when measured directly at the unit inlet and of course 
these values only apply if the temperature and moisture content remain constant! 
 
 
 

Other 
 

Warranty statement: 

 
Notwithstanding the statutory warranty claims, the manufacturer grants a warranty in accordance with the laws of 
your country, but at least 1 year (in Germany 2 years for private individuals). The warranty begins on the date of 
sale of the appliance to the end user. 
The warranty only covers defects that are due to material or manufacturing faults. 
are. 
Warranty repairs may only be carried out by an authorised customer service. To 
To make your warranty claim, please enclose the original sales receipt (with date of sale). 
Excluded from the guarantee are: 

Normal wear 

Improper applications, such as overloading the appliance or non-approved accessories. 

Damage due to external influences, use of force or foreign objects 

Damage caused by non-observance of the operating instructions, e.g. connection to an incorrect mains voltage 
or non-observance of the assembly instructions. 

Completely or partially dismantled units 

 
 
 
 
 
 
 
 
 

Summary of Contents for WDH-35B

Page 1: ...t To ensure that you get a lot of enjoyment from this product here are a few more tips In case of any problems We hope that the unit meets your expectations If despite the greatest possible care there...

Page 2: ...it points diagonally backwards and the four fastening holes of the handle are above the fastening holes on the unit casing See the cover picture of the operating instructions Then screw in the four h...

Page 3: ...otherwise it can lead to a reduction in performance and in the worst case to overheating and or fire Please always keep a distance of approx 20 cm to the wall to avoid possible overheating of the uni...

Page 4: ...e outlet of the exhaust air is always ensured and not obstructed by other objects Ensure a minimum distance of at least 50 cm from open flames and heating elements Set up operation and storage of the...

Page 5: ...ore you press the main switch I O again In case of cold ambient temperatures or icing in the unit a sensor automatically controls a defrosting process Meanwhile the defrost mode automatically controls...

Page 6: ...sometimes even be the case daily on dusty construction sites Switch off the unit and disconnect the mains plug Now remove the air filter screen by pulling it upwards by the tab Wash the dirty sieve w...

Page 7: ...fication table for DURABLE OPERATION 35 degrees and 90 RH approx 40 litres optimum or maximum capacity 30 degrees and 80 r h approx 35 litres and at 60 r h approx 18 litres 20 degrees and 80 r h appro...

Page 8: ...ng to EN 55014 1 2017 EN 55014 2 2015 EN 61000 3 2 2014 EN 61000 3 3 2013 Correct disposal of this product Within the EU this symbol indicates that this product should not be disposed of with househol...

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