Hello guys!
My Daikin heating & cooling system recently stopped working and the solid green light turned into a blinking green light. With some quick googling, I found a video on how to diagnose the HVAC system and find the fault code using the remote control.
After scrolling through the codes, there was a solid long beep on F3, indicating that that's the fault. According to https://www.daikin.com/products/ac/services/error_codes/pdf/sm-ts3_p1-6_errorcode.pdf, the F3 fault code indicates a "Malfunction of discharge pipe temperature".
After getting quotes from different HVAC repair businesses in my area, I quickly found out that the prices are in the hundreds of dollars just to come out and diagnose the problem. Then perhaps weeks for the parts to get in if there was a special parts needed.
Which brings me to the reddit /HVAC community. I was wondering if any of you guys know if there was a guide on how to fix the F3 error code myself, or if it's best for me to just shell out the hundred of dollars for a trained technician to come out and attempt to fix it.
Thank you in advance for your help!
I have a Daikin heat pump and there is an f3 malfunction of
Daikin HVAC F3 Fault Code Advice
Help with Daikin error code F3
Hi all,
Just after a bit of guidance with what may be the issued with our unit. I'm getting error code F3. When in heat mode no air will come out, and after a few mintues the power light will flash and the remote will give error code F3. When in cool mode it will blow air indefinitely from what I can tell but it is just room temperature air, it is not cold air. For the 1st couple of hours while in cool mode the outdoor unit doesn't do anything, fan doesn't spin up, the fins don't appear to get hot either. After a couple of hours the fan spins very slowly. Just quick enough to pull air though but bairly audible, still slow enough to see the individual fan blades.
Model is Daikin FTXM25QVMA, I have posted pics of the model tags of the indoor and outdoor units.
Other notable info: There may be an ants nest in the indoor unit, the wife and I have noticed a lot of dead ants on the bench below the unit each time we put ant baits out.
Other notable info 2: 6 months ago the unit was repaired under warranty after having error code 00. It did not turn on at all, cool or hot. The repairman replaced the coils in the indoor unit and it worked fine for at least 3-4 months (we didn't use it until now so hard to tell). It is no longer under warranty and Daikin are not willing to come out again without charging (fair enough).
Anything else I think of I'll edit this post. A bit of guidance as to what may be the cause would be appreciated so much.
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