Split unit, I get heat but no cold

Called Flash Codes. First try turning off everything at the breaker for at least 2 hours and preferably overnight. Turn back on and wait 15 minutes for self test to complete.

https://www.orionair.co.uk/PDF/fujitsu-trouble-shooting.pdf

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I had ice buildup in the winter at bottom of fan housing. This kept the blade from turning. Hair dryer made the fix easy peasy.

call fujitsu engineering division direct and ask them about what is connected and if it works ok
logically as each evaporator has it's own tx valve as long as the compressor is large enough to run all together it should work but get the right information from the fujitsu experts

If there is 3 indoor units from one condensing unit
(6 pipes at outdoor unit) this is classed as a multi unit

All units will run correctly as long as they all require same mode, cooling or heating, if one unit decides to heat it will shut down until master unit decides to heat then it will start, for each unit to individually heat and cool there would have to be 3 pipes to each indoor,

Outdoor unit suction sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor

Indoor unit faults = CH04 or C4
Fascia LED's
- RED = None
- GREEN = 4 Flash
Contents = Drain Pump / Float Switch
Case of Error = Float Switch Open Circuit (High Level Water Alarm)
Indoor Status = Off

clean your condensate drain line you can do this with a shop vac,
Read more: http://dgoma.es/multisplit_lg/lg-multi-split-units-error-code/#ixzz34dr3Cu00
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The reason you are getting this code is because all units must be hooked up electrically to the condensing unit. The copper doesn't have to be connected to each evap unit for one to run but they all need to be hooked up electrically to meet the minimum btu requirement for the condenser to run. Hope this helps

No you should not, as the total capacity higher tan condenser capacity of 24k

Hi, I know its a split as you have noted, and I am sure it would be a ductless heat pump system. Unless you are having a problem programming the t-stat, the manual would be of little help on these units.I wish you would have given more on the symptoms, like does it blow cold air or either unit will not work? You say it will not heat. On a H.P., it could be many things.Lets say its blowing cold air. Check the outdoor unit to make sure it comes on in the heat mode also, and the fan is on.Make sure you turn the heat up far enough to bring on the outdoor unit 1st. If it doesn't come on, then find the breaker to see if it is tripped. If yes, turn off hard and on again hard. if it stays on, great. If not, then It gets more complicated as compressor may have shorted out. Please check these things for me, please so we can solve this for you. On a heat pump, if you loose a compressor lets say, you have electric heat strips in the indoor unit that should come on if you have a switch on the T-stat that will say emergency heat. Try and use this setting to see if you can get some heat. I am trying to offer a solution to get you some temp. heat until we locate the main problem. If the indoor or outdoor units are not running at all, check for power at all breakers, and, check program on t-stat to make sure you set on heat, fan to auto, and temp to where you are comfortable.From here after checking all of these solutions, let me know what the status is and if it did not work, to tell me more of the original symptoms so I can go from there. Best of Luck,
Sincerely,
Shastalaker7

Your compressor is seized up. shut down unit and let compressor cool down, it may start again but probably needs to be replaced.... sorry for the bad news,