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View Full Version : FTx25 strange noise from indoor unit


r.bartlett
29-04-2019, 07:47 PM
Chaps

got some older 2013 indoor units 2 out of 150 which are making a strange motor type noise. but we have changed the stator and both bearings but still the same..

link to video:https://youtu.be/V8mSsOl2Y_E

has anyone had similar and what was the solution?
nike123
30-04-2019, 07:02 PM
If that is BLDC motor, than probably problem is in control electronic!
r.bartlett
01-05-2019, 08:25 PM
If that is BLDC motor, than probably problem is in control electronic!

that will be the indoor unit pcb then?
Tayters
02-05-2019, 06:21 PM
Guess you would have sussed this but anyhow, couldn't be sure from the video but sounded a bit like the fan was out of balance with the drumming noise?
r.bartlett
03-05-2019, 07:09 AM
Guess you would have sussed this but anyhow, couldn't be sure from the video but sounded a bit like the fan was out of balance with the drumming noise?

on going

as soon as you switch off the noise stops but the fan keeps spinning..
hyperion
07-05-2019, 01:28 PM
As Nike has suggested, probably induced electronic noise from faulty PCB.