Fan making racket

my machine has been doing good  4 awhile but started a racket again .i started looking 4 the problem quick found ice on fan ,it made noise till ice came off .but did it again .what can i do ?what do i need to do to fix this ?
also is there a placce to turn down the temp on a vendo h126a or make it not as cold cant find a control thanks

[Jim]

I don't have any info on a Vendo 126, but there definately should be a way to control the temperature!  The thermostat may not have a knob and will require the use of a screwdriver to adjust it.

Look for a small capillary tube approximately 1/16" or so (some vary in size) and follow it to the thermostat...

[johnieG]

Also make sure there's no blockage of the condensate drain and the fans not spraying up water onto itself, or that condensate's not dripping down onto the fan blades from the bottle racks above it '>