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eurocooling
23-03-2011, 08:33 AM
Hello I have a problem of a code of L9 coming up on a split unit I think its something to do with the outdoor unit can anyone help

terencejohn20
23-03-2011, 09:50 AM
L9 is the Outdoor Compressor lock

eurocooling
23-03-2011, 07:44 PM
Thanks what does that mean ? And how do I fix this

stufus
23-03-2011, 08:56 PM
It can also mean inverter start trouble.
Generally both go hand in hand sounds like your compressor in knackered.
Does it drop out straight away on start up?or does it spin up the stop?
Cheers
Stu

eurocooling
23-03-2011, 09:28 PM
It goes off and on I am going there tomorrow I live in Portugal as you don,t get the back up here

eurocooling
23-03-2011, 09:33 PM
I have another problem on a mitsubi ducted unit checked gas pressure all ok no air flow coming out of vents unit only been in 3 months plus it's freezing up on outdoor receiver on cooling, when I put it on heating cuts of after 5 mins. This is doing 3 small bed and a lounge can u help ?

stufus
23-03-2011, 10:09 PM
Start with checking the fan and filters. No air in = No air out.If you have no air flow your running pressures can't be ok !
What gas is it using and what are the running pressures?
Check duct work for dampers or obstructions.
Are you getting HP/LP faults on heating and cooling or P8 faults
Chers
Stu

eurocooling
23-03-2011, 10:50 PM
Thanks for you time the indoor fan is working fine warm air comes out of indoor unit and cool gas is R410a and cooling pressures us 7 bar ducts installed are brand new all clear god no

JoeAT50A
24-03-2011, 03:07 AM
7 bar (100psi) low pressure is still low for R410A, typical packaged around 9~10bar (130 psi) and high side should be around 28 to 30 bar, 400psi.