air conditioning noise

[tichyt]

hi, i was called out to see a job, the problem they were having was the air conditioning was making a noise. i only noticed it inside but i was told the condenser was making it too. what can it be?

because i'm new to this, i ain't got a clue. thanks for any help given.

[james10]

Was the sound a swooshing sound,
its possible it is the unit changing from heat to cool if its a heat pump in auto setting this happens when the unit shuts down and the reversing valve opens equalising the system pressures

[tichyt]

i cant explain the noise, sorry. it happens 5mins into the heating mode. the customer says the wall mount sounds and the outside unit can be seen throwing water out via a cloud of water from the fan area.

this is the best i can explain it from the customer point of view.

[Brian_UK]

Yes, that would be the defrost cycle starting.

I appreciate that you are 'new to this' but is your customer getting their monies worth?

[tichyt]

i am new, but this isnt my job. im simply helping out a friend. thanks for asking.

[NoNickName]

Defrosting. Now, why it happens after 5 mins in heating, that's strange.

[mikeref]

i cant explain the noise, sorry. it happens 5mins into the heating mode. the customer says the wall mount sounds and the outside unit can be seen throwing water out via a cloud of water from the fan area.

this is the best i can explain it from the customer point of view.

Maybe.. an r22 conventional, gets to its heating setpoint then shuts off followed by reversing valve equalising.. mike.

[tichyt]

hi, to close this thread the noise was from the fan hitting a piece of wire. all sorted now. thanks for any help given.