Daikin VRV II Reset

[adam0606]

What is the correct order of Reseting Daikin VRV II... How long do I switch the mains off??? How long do I hold the reset button before hitting test... I have been told to turn off all indoor units (7 indoors) by the controller only leave mains on to indoors, then turn mains off to the master outdoor first then slave outdoor. Wait 15 mins turn on Master outdoor wait 15mins turn on slave wait 15mins. Hit the reset for 15 seconds then test button... Can anyone confirm this???? Cheers Trying to remove a U4 fault....

[ktm]

Never heard of that method. Just turn off the master and slave. Hold down reset button on master and turn on power to both condensers while holding down the button. Hold it for 30 seconds u should hear a few clicks. Like to see what others say. Good luck.

[james10]

Never heard of that method. Just turn off the master and slave. Hold down reset button on master and turn on power to both condensers while holding down the button. Hold it for 30 seconds u should hear a few clicks. Like to see what others say. Good luck.
Totally agree on that one did the daikin VRVIII course and thats what they told us

[Reffnut]

yup its not that complicated ktm is right its the same for all daikin vrv

[wozza]

Power down master and slave, dont worry about having to keep hold of the reset button while switching the power off as sometimes you might have to have very long arms.

But everyting else above is right

[adam0606]

Cheers thanks for the input.....

[km0110]

how about reset vrvIII?same withvrvII?

[yageair]

U4 - not passed the test

[ktm]

U4System Malfunction of transmission between indoors/Indoor to outdoor,outdoor to outdoor transmission wiring F1,F2 disconnection, short circuit or wrong wiring.

[stigman]

check and make sure you have power to all indoor units and BS boxes,thts where your U4 fault lies.