carrier fault codes

**coolflow** · 05-09-2005, 08:35 AM

hi to you all , i have a carrier ducted ac system series 38yl i think and its giving me 3 flashes on a green led on the inside pcb any idears?

willywoe · 05-09-2005, 05:41 PM

Hi,

you have given the outdoor unit M/n (I think). Anyway 3 flashes usually means that the indoor unit coil thermistor is faulty

**coolflow** · 15-11-2005, 08:04 AM

thanks it is and a quick sol is to put a 47k ohm across s1 s2

Paul.R · 19-07-2009, 12:48 PM

Could any one tell me how to re cover all refrigerant from a Daikin 3 pipe system.
thanks Paul

Andy Gillott · 04-10-2009, 10:16 AM

Hi all, this is my first request for help!!!!!!!
I have a carrier a/c model 38 YLN-18A-703EJ-40 (wall mounted split) indoor unit is showing 4 flashes on green led. It is an old unit and I cant find any info on this one, any ideas?
Thanks in advance!

**iceman007** · 04-10-2009, 01:18 PM

Originally Posted by Andy Gillott

Hi all, this is my first request for help!!!!!!!
I have a carrier a/c model 38 YLN-18A-703EJ-40 (wall mounted split) indoor unit is showing 4 flashes on green led. It is an old unit and I cant find any info on this one, any ideas?
Thanks in advance!

I looked through all my Carrier manuals (I have hundreds) but can't find anything for that model, so I logged onto the technical library,but nothing is current there. Usually 4 flashes is a coil thermostor failure

Andy Gillott · 04-10-2009, 02:29 PM

Many thanks iceman007 for your efforts, at least now I have somwhere to start from!

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