AHU not working anyone any ideas on this

[cliffed]

AHU not working no idea of set up.. any easy fix on this

 

[plugsandsparks]

Have you checked the fuse

 

[davesparks]

What is wrong? What have you tested? What external equipment is fitted and connected?

 

[cliffed]

What is wrong? What have you tested? What external equipment is fitted and connected?

Power is there… not really sure on equipment connected… the remote control connections have no idea… is there anyway of overriding that marked Red

 

[cliffed]

Have you checked the fuse

Fuse ok & lights flashing see pic below

 

[freddo]

You still haven't said what isn't working with the system.

 

[cliffed]

You still haven't said what isn't working with the system.

Sorry …nothing working Fan not circulating seems like something a control may be holding the system off

 

[OnlQQker]

 

[cliffed]

View attachment 109520

Yea all ok

 

[OnlQQker]

How about the jumper settings, one is turned off in the first sequence, and looks like all are off in the second. Have any been accidentally moved?

 

[cliffed]

How about the jumper settings, one is turned off in the first sequence, and looks like all are off in the second. Have any been accidentally moved?

No nothing been moved ...I can see … any idea of the correct settings on those??

 

[OnlQQker]

No nothing been moved ...I can see … any idea of the correct settings on those??

No, I tried googling the make and model of the board and nothing came up so far.

 

[OnlQQker]

The bit you circled doesn't see to match up with the colour coding on the diagram, I've used the jumpers as co-ordination for pasting in your board next to it.

 

[davesparks]

Power is there… not really sure on equipment connected… the remote control connections have no idea… is there anyway of overriding that marked RedView attachment 109516

There's always a way to override things if necessary.

But you need to find out what controls are connected to it and check that they are working and set correctly first.

 

[davesparks]

The bit you circled doesn't see to match up with the colour coding on the diagram, I've used the jumpers as co-ordination for pasting in your board next to it.

View attachment 109522

It does match the diagram, orange yellow and blue for terminals A, B and C which is a low voltage external control. Then two greys for X and Y which is a network connection for a centralised control system.

 

[marconi]

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?

 

[marconi]

Further to my last. Page 77 of 78 gives support contact details and mentions a Toshiba app to download with the fault codes.