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dmtonyole
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Join Date: Dec 2006
Posts: 77

Resetting Error Code in VRV Daikin Air Conditioner

02/09/2018 11:20 AM

We have the DAIKIN VRV Cooling system which stopped working and display an error U O3 Blinking. How can I reset this error or what is the cause of problem?
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SolarEagle
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#1

Re: RESETING ERROR CODE IN VRV DAIKIN AIRCONDITION

02/09/2018 11:27 AM

https://removeandreplace.com/2017/04/25/daikin-air-conditioner-ac-error-codes/

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SolarEagle
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#2
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Re: RESETING ERROR CODE IN VRV DAIKIN AIRCONDITION

02/09/2018 1:11 PM

I take it to mean there is a low refrigerant problem and a wiring issue or circuit interruption, which could just be the low pressure switch tripped....but I'm just guessing...If you have a ref leak, it should be located and repaired...call a pro

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redfred
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Engineering Fields - Electrical Engineering - Been there, done that. Engineering Fields - Control Engineering - New Member

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#3
In reply to #2

Re: RESETING ERROR CODE IN VRV DAIKIN AIRCONDITION

02/09/2018 2:19 PM

Sounds like another and appropriate ESO condition.

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tonyhemet
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#4
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Re: RESETING ERROR CODE IN VRV DAIKIN AIRCONDITION

02/09/2018 10:40 PM

Solar Eagle : You didn't go to Google too, did you ?
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dmtonyole
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#5
In reply to #4

Re: RESETING ERROR CODE IN VRV DAIKIN AIRCONDITION

02/10/2018 3:13 AM

I went to google and found error U3 means Check operation not executed after completion of installation or after replacement of the main PCB board. However, in this case the AC was working without any problem for the past three years, it stopped working with U3 error in both remote and outdoor main PCB Board. I think that could not be because of check operation execution.
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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

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Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
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#6

Re: Resetting Error Code in VRV Daikin Air Conditioner

02/12/2018 7:05 AM

Please tell the forum why it proved impossible to resolve this problem with the equipment manufacturer over the telephone, including gaining access to the User Manual for the equipment?

That would be worth reading...

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dmtonyole (1); PWSlack (1); redfred (1); SolarEagle (2); tonyhemet (1)

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