Your 2011 model is a Phase 7 machine produced from 2005 - 2011. The machine in this video is a Phase 2 produced from 1993 - 1995. This particular machine was made in December 1993.
@@washingmachinevideosnz923 I believe it was from phase 6 onwards that Fisher and Paykel switched to the black motor design, which they still use today. The black motor is quieter than its white and grey counterparts due to a different motor control system, which I suspect uses a different waveform to commutate the motor's 3 phases (The motors used in these machines are known as BLDC outrunners, or permanent magnet synchronous motors - despite their name, they can run on both 3-phase AC and pulsed DC, which emulates an AC signal). The models prior to this had a square wave/pulsed DC controller, which, due to the high peaks in the waveform, produced a louder overall sound as the coils vibrated more. I suspect these new machines use a sine wave or tri wave controller. Sines/tris are more round and gently curved, so it would explain the quieter motor sound, at least to me. You can sometimes hear the new machines accelerating, typically after they reach 500RPM or so. Anyways, hope this cleared some stuff up and you all found this little science lesson interesting! :D
Nice, that is a lot more quiet than my fisher and paykel 2011 model
Your 2011 model is a Phase 7 machine produced from 2005 - 2011. The machine in this video is a Phase 2 produced from 1993 - 1995. This particular machine was made in December 1993.
@@washingmachinevideosnz923 o ok yes the buttons on mine are a lot different but the agitator is still the same along with the drum
@@Zfurty the agitator in this one is actually slightly different
@@washingmachinevideosnz923 I believe it was from phase 6 onwards that Fisher and Paykel switched to the black motor design, which they still use today. The black motor is quieter than its white and grey counterparts due to a different motor control system, which I suspect uses a different waveform to commutate the motor's 3 phases (The motors used in these machines are known as BLDC outrunners, or permanent magnet synchronous motors - despite their name, they can run on both 3-phase AC and pulsed DC, which emulates an AC signal).
The models prior to this had a square wave/pulsed DC controller, which, due to the high peaks in the waveform, produced a louder overall sound as the coils vibrated more. I suspect these new machines use a sine wave or tri wave controller. Sines/tris are more round and gently curved, so it would explain the quieter motor sound, at least to me. You can sometimes hear the new machines accelerating, typically after they reach 500RPM or so. Anyways, hope this cleared some stuff up and you all found this little science lesson interesting! :D
@@LoganT547 No it was from Phase 7 onwards that they switched to the black motor design.