Daikin r32 query

[doorswing]

Daikin split runs on fan only but does not try to start on cool/heat mode when thermostat is set or
in test run.240v and comms between indoor/outdoor ok,led's on boards all green no sign of damage.U4 comms fault was cleared on controller and no other faults showing.No mobile phone signal i building so could not ring daikin.system is not on a BMS
Can anyone help?
Indoor model FCAG100AVEB cassette,outdoor model AZAS100M7V1B on r32 gas 1ph
SKYAIR ACTIVE SERIES

[al]

Was it running previously or are you commissioning it?

[doorswing]

As far as i know this unit has been running previously.

[al]

If outdoor won't kick in, check for fluctuating voltage on comms cable, check power to outdoor, check for faults with controller.

[frank]

Is 'Vacuum' mode enabled?

See page 18 https://www.daikin.be/content/dam/document-library/Installer-reference-guide/ac/sky-air/AZAS71-140MV1,%20AZAS100-140MY1_4PEN486048-1A_2017_08_Installer%20reference%20guide_English.pdf

[Tayters]

Daikin have had a lot of R32 systems with various errors due to faulty capacitors on the outdoor PCB. I’d give them a call with the model and serial number and see if it in the affected range.

Edit: I have a photo with the affected range but it’s too big to attach here. Suffice to say your model is affected subject to confirming serial number. I’ve emailed the info to the address on your vCard. 👍

Further edit: that email bounced back. Send me a message with an alternative email or WhatsApp and I’ll send over.

[doorswing]

Thanks tayters my e-mail is martin.preissler@flakt group.com
I have heard today that daikin have had problems with boards but it will be really usefull to have this photo.

[doorswing]

Thanks for reply,voltage is fluctuating from 7-35vdc power 240v acrossphaseon indoor/outdoor unit.how would you check controller as all seems normal.

[doorswing]

no vacuum mode is not enabled

[doorswing]

Thanks for everyones help,especially tayters who sent the photo which confirms daikins acknowledgement of the
outdoor board problem on skyair units