We know how frustrating it can be when something isn't working the way it should and most of the time it's something very straight forward. We've put together a list of the most commonly asked questions; with this guidance, hopefully you'll be able to identify and fix any issues.
If not, please get in touch.
All our wiring diagrams are available to download. You'll find them under the resources tab on our home page. If you can't find what you're looking for let us know.
You'll find all our Operation & Maintenance manuals under the Resources tab on our homepage. Here you'll be able to read or download them.
Kitchen extract fans and accessories are available from our network of distributors, please take a look here to find for your nearest stockist. All other enquiries please fill out the enquiry form.
Check the wiring is correct inline with the circuit diagrams available in the back of the O&M, check connection at the fan terminals and the power supply, EC motored fans may require an enable link & a DC speed control signal separate from the power supply. If that doesn't work please get in touch.
Check the fan is installed the correct way round - airflow direction & rotational arrows are indicated in the middle of the fan nameplate and on the impeller blades. If the fan is installed incorrectly it must be removed and rotated to the correct position. Do not remove the impeller to change impeller rotation.
High fan currents can be caused by several things;
If it doesn't improve please get in touch.
Where using a single-phase speed controller check the regulated neutral “U” is connected to “U” in the fan and the link wire in the fan terminal box between “U” & “P” is removed. When using two wire speed control method leave the link wire between “U” & “P” in.
This is most likely caused by grease or dirt build up on the motor casing making the motor run hot. Check & clean the motor and consider increasing fan speed to aid motor cooling from the airflow.
Inspect the impeller for damaged blades, loose or missing hub bolts or balance weights, excessive shaft play and build-up of dirt.
Mechanical noise with a fan is generally caused by two components knocking together;
It is likely something has come loose or has made its way into the fan or ductwork;
Fans that are run through an inverter drive can sometimes produce a high pitch whine which can be caused by electrical interference within the system;
No, this will invalidate the warranty and could cause serious injury. Please fill in the enquiry form on our website to get a quote for this work to be done by Woods Air Movement professionals.
For further technical support please send an image of the fan nameplate with a description of the problem to woodsuk.technical@flaktgroup.com
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