water cooled vrv 2 uf fault help help

[mick mernagh]

hi all new to ref engineer have prob uf fault code commisioned 16 indoors 16 bs boxes 6 weeks ago had probs seeing units all no mix up on cables had to break up system an add units 1-2 units at at a time finally seen units passed test run returned to put 9 more units on system same prob again only worse no units to be seen done same as before tried 1 unit an so on tried resetting outdoor held reset for 5 secs -30 secs and power up no luck only seeing 16 no extra units check cables power all ok 16 volts on f1 f2 nothing mixed up green led on bs -indoors any ideas thanks

[nike123]

Is this some Irish version of English language? I ask because I have big difficulties in understanding what is written here.

[The MG Pony]

Yes come again, coherantly preferably!

Perhaps you aut to start with the 5 W's

Who
What
Where
When
Why

Data, ie application, function of the system in question, location of system, what IS the system.

That sort of thing, we like organised coherant data!

[The Viking]

6 weeks since commissioning...
Units don't operate...
You can't find the fault...

Call the manufacturer!
The units are under warranty and that's why the manufacturers got technical departments called something like "after sales service"...

[normally Daikin's guys are very good at finding the problems]