Noise from air conditioning

Liberty44140

Over the last few weekends I've been getting this noise from the ac. Does not happen with blower only running, happens only when compressor is on heat or cool. If you listen closely you can hear it's like an insect buzz in the background. Any ideas? Link to see/hear below 

https://youtu.be/blXa6EAU8vs

trip_n

sorry i dont/cant hear=try cleaning the filters and make sure they are fitting tight=have you stowed anything near-vibration
no fly's trapped==sorry had to

Handymans342

You may need to put rubber shims between the pan and the hull to dampen the noise. There is also a damper blade inside that large air grill that may cause the noise.

reneechris14

@Handymans342 is right my damper blade vibrates pretty bad , 

Liberty44140

Thanks guys - I'll play around this weekend. Is the damper blade inside the large grill on the unit itself? Like near the coils?

Handymans342

Right inside the grill

Handymans342

Controls the air flow to the bathroom

reneechris14

I just stuck a screw drive though the slot and touch the damper and the sound stopped. But I never fixed it but know what the sound is.

Liberty44140

My dampener was ok, PO had stuck a wine corn between the baffle and the wall to get good air flow to the head and to stop vibration. I opened up the compartment with the compressor and there was a plastic wire holder touching the compressor, moved it away and no more noise. All good.

aero3113

Nothing better than an easy fix!!

reneechris14

Lucky man

JosephJones

It might be due to faults in compressor, lose connection or malfunctioning. Check the connection and compressor is their any leak or fan problem and clean it.

Ian

That compressor buzz you get is what keeps us awake at night, wish that could be dampened somehow. I'll look to see if I can put something under. But I also don't have any dampers or blades, just the R/A grill

Handymans342

I used some rubber pads double on opposite end of drain to keep the pitch

Liberty44140

Like I posted back in October this was just wires pressed against the compressor, once moved away no more noise. When we had the 2001 310 the ac would indeed wake me up when it kicked on. Not sure what they changed but it does not wake me up on the 342. 

Handymans342

Well my new one is super quiet. Since its water cooled you could experiment by putting that blue panel insulation or something else around it