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AHU not working no idea of set up.. any easy fix on this [ElectriciansForums.net] AHU  not working anyone any ideas on this[ElectriciansForums.net] AHU  not working anyone any ideas on this
 
Fuse ok & lights flashing see pic belowView attachment 109518
How those three LED lights flash is a code to report a fault using the built in test functionality. Please could you describe and/or film what these three lights are doing.

This technical document may be helpful (pages 25/78 onwards) if your AHU series is covered within otherwise you could simply phone the UK technical help line:

http://www.toshiba-aircon.co.uk/ass...ols/New_Technical_Handbook_version_14_1_2.pdf

What are the full details of your AHU?
 
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