Chiller for laser has gotten VERY loud.

[SignProPlus-Chip]

I'm running a CFT-75 with my 100 watt Epilogue. Last week we noticed is was low on water, so it was filled but it then got obscenely loud. It now sounds like a small engine is running in the laser room.

I tried googling the issue but really haven't found anything. It seems to still be working OK, but the noise is a big concern.

Any idea what is causing this?

 

[solock]

I dont know their chiller configuration, but it sounds like an air block, and the pump is starved for water?
Is there a way to bleed it to ensure that water is in the pump impeller?

 

[Signs101Admin]

Maybe the Fan, went bad?

 

[SignProPlus-Chip]

That was my first thought, sound like a pressure washer when there is air in the system. The maintenance manual is pretty basic, no type of trouble shooting for such things.

I dont know their chiller configuration, but it sounds like an air block, and the pump is starved for water?
Is there a way to bleed it to ensure that water is in the pump impeller?

 

[SignProPlus-Chip]

Not sure, seems to be running. Everything was still running quiet until we topped off the water.

Maybe the Fan, went bad?

 

[ThatGuy]

I don't know what kind of pump this uses, but possibly a bad bearing in the pump since it started when water was filled? I wouldn't think it is the chiller section unless the low water had it off and it came on with the added water.