Mastercool Coolers Mastercool Evaporative Coolers?

Mastercool evaporative coolers? - mastercool coolers

Mastercoool I have two units on the roof of my house 3 years. These things are a constant problem. In a unit that holds the roller adjustment screw down, and when it is switched off, the roll does not rotate the shaft. The other device that many mineral buildup in wells that feed cooling pads, the unit that seems too much noise, vibration and noise has to be done. Another drive is quiet when running. The tapes are new and everything seems ok. I know that the unity of sound, when you support panels (on the internal mechanical) of the device still work, so I think it's a vibration in one of these sheets. Ideas?