VRV4 | How to solve abnormalities U3 | Test run | RQQ - TYM

Brand : Daikin
Model : RQQ12TYM
Error : U3
Symptoms : not working and error U3
Cause : Never test run after replace Pcb
#bonmj #airconditioner #daikin

[@jrbfyp7065]

Nothing like Mr. bon Mj
The best ever

[@BonMj]

Thanks

[@jrbfyp7065]

Since May of 2022 until June of 2023 I was assigned into a hotel Best Western Plus Philippines ,there unit is VRV 4 .
I really have hard time doing trouble shooting of this unit until I found in You tube Mr. bon Mj .
His videos and tutorial help me a lot ,and even in VRV 3.
Now i resigned from work and this 2024 want to starts my own Aircon business
Thank you so much sir Bon.
Even in email you responded to me.
Thank u

[@salamsaloom2477]

👍👍👍👍

[@BonMj]

Thanks

[@matazglb5346]

Du bist der beste 😊

[@BonMj]

Thanks

[@electrolatif]

Thank you Mr Bon

[@BonMj]

You are very welcome

[@salimagwan9672]

👍

[@auntan5219]

Thank you master

[@BonMj]

Welcome

[@mohamedfaisal5203]

Pls Mr Bon I need any material pdf for troubleshooting vrv&vrf because I like learning by reading
And thank you for your information

[@BonMj]

Welcome

[@peramaraj2763]

VRV-4 any faulty spare parts replace must put test mode or not ?

[@akashshaw214]

Hlw sir
Vrv 4 lc 30 error code
2 nd inverter pcb defective
After deactivated / bypass 2nd compressor
Machine is showing the same error
What is the problem??

[@Namwonmagar759]

Sir in daikin vrv there is a cooling problem
Amp not goes higher stand in 4 amp
Suction pressure 150 discharge pressure 350 14hp outdoor unit whats the problem

[@BonMj]

May insufficient gas

[@Namwonmagar759]

@@BonMj we added gas also sir almost 2 kg bt problem still same

[@Namwonmagar759]

I want to check vrf ac from laptop can u teach me how to use laptop in vrf ac

[@khaerulanam5581]

Sorry master. The adaptor ITM can be repair.?

[@talabgargroup]

Helo sir can you tell.me please what is the problem if vrv unit make suction line ice problem? Daikin vrv 4+

[@BonMj]

Check indoor EEV, air flow

[@phinguyenhuu5415]

Hello, I want to buy a faulty PCB, do you sell it?

[@yudhistira5209]

Sir to4 but =code error UF-01 what's this problem

[@BonMj]

Check indoor thermistor

[@yudhistira5209]

Ok siir thank you