Question about Fujitsu 18C1 Air Conditioner

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Fujitsu reverse cycle split wont blow cold

Seems to be no reason for it the machine is operating. Is it the same as a car air con where there may be a gas leak and needs re-gassing? know very little about them and am hoping for an easy fix.

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  • BoB CPBLL Feb 29, 2008

    Externally Wall Mounted Compressor Unit Cooling Fan not working - Unit is operating but will not cool - System is 12 months old.



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Same as car aircon, but uses different kinds of freon. check first the thermostat setting, may be it set too high. set it to 20'c. if still not cooling, check wiring on ACCU, check capacitor too.

Posted on Jan 20, 2008


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Posted on Jan 02, 2017


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I have a reverse cycle 4 year old fujitsu air con and when I turn it on it automatically just blows air not cold air - it seems to divert to sleep almost immediately can u help.

It should still be in warranty as Fujitsu usually goes for 5 years. Get in touch with Fujitsu to find a local warranty agent. There's not enough info in your post for a diagnosis. Are the lights flashing? If so, what sequence are they flashing? Does the indoor unit otherwise work normally in 'fan' mode? What model do you have?

Jan 13, 2018 | Fujitsu Heating & Cooling

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Water is coming out of indoor mini split. At present time high humidity. Fujitsu machine. Filters are clean, serviced by tech.

It probably has a blocked drain. A bit of liquid bleach into the condensate tray and let it sit for a while before running the air con to flush it down usually does the trick. Otherwise you may have to insert a tube into the drain and blow it clear.

Oct 16, 2017 | Fujitsu Heating & Cooling

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I have a panasonic inverter air con. Model CU-E18LKR. it's not cooling properly. Seems to be blowing cold air out on th outside rather than inside.need instructions on troubleshooting

This is a reverse cycle (heating and cooling) model. It sounds like you have it in heating mode. Check the Panasonic website for an owners manual.

Jan 30, 2017 | Panasonic Heating & Cooling

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My Honeywell thermostat isnt keeping my house cool even though the temp is set to 69. Currently 90 degrees in here

Its probably not the thermostat. The air conditioner may be stuck on heating mode. If its a reverse cycle, the reversing valve may be jammed so even when the thermostat is calling for cold air, it stays on heat. If the machine is on heating mode, it should be blowing cold air out of the outdoor unit of the air con. If its on cooling mode, the outdoor should be blowing hot air.

Apr 12, 2015 | Honeywell Heat/Cool Thermostat

1 Answer

Fijitsu wall mounted split system operation and timer lights are flashing, and the air con is not blowing cold air, only like fan operating even in cool mode.

This the common problem with all a/c holders. Without knowing the function of Timer on and Timer off, if it's pressed the unit will start only at setting time.

Please remove the battery from your remote and reset it. And then with use of your manual, set the timer if you need., otherwise normal function will be activated.

Dec 11, 2010 | Fujitsu Heating & Cooling

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Air con unit switches on blows air but air is cold even when hot air is required

you did not specify...if this is a heat pump, make sure you have 24 vac on the O, orange wire at the unit from the stat ...(0vac on Rheem, Ruud). If you do, you may have a bad coil on the reversing valve or a stuck reversing valve, or very low on refrigerant.

Jan 14, 2010 | Fujitsu Heating & Cooling

1 Answer

Fujitsu Reverse air con not blowing heat anymore

Reverse setting could need checking here sliding valve could have siezed. you would need a service Technition. your default setting is working fine so it needs to be checked on heating mode function.

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1 Answer

Only blows hot air inside

Set thr thermostat to AC instead of HEAT.

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