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6
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7
Drain Maintenance
Each unit has a drain located inside the unit which removes the condensation from the
evaporator coil and evaporates it at an external condensate pan. If you notice excessive water
accumulation on the inside of the unit be sure the drain tube is connected from the evaporator housing
to the condensate evaporator drain pan.
If water is collected underneath the unit you may want to check the condensate evaporator
drain tube to be sure it is still located inside the drain pan.
Be sure all drain lines are free of obstructions; typically, food product is found blocking drain
lines causing water to back up and overflow the drain pans.
Many operating problems are derived from causes that can be easily eliminated without the
need to contact the Technical Department. The following page shows a table with types of problems
that may come up, their cause, and how to resolve them.
PROBLEM
POSSIBLE SOLUTION
Compressor will not start-no
hum.
1.- Disconnect switch open.
2.- Blown fuse.
3.- Defective wiring.
4.- Overload protector tripped.
5.- Open control contacts (control may be defective, or unit location
may be too cold).
6.- Defective overload protector.
7.- Low charge of freon-check for leaks.
Compressor will not start-no
hums but cycles on overload.
1.- Low voltage.
2.- Unit wired incorrectly.
3.- Starting capacitor defective.
4.- Starting capacitor seal.
5.- Compressor motor defective.
6.- High head pressure.
7.- Bearing of pistons tight-low oil charge.
10
TROUBLE SHOOTING CHART
