Cornelius I Series Manual de servicio descargar pdf (Pagina 21)

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SERVICE ANALYSIS

Trouble Probable Cause Remedy

UNIT WILL NOT RUN A. On–off switch in ”off” position. A. Turn switch to ”on”.

B. Defective on–off switch. B. Check and replace.

C. Blown fuse. C. Replace fuse and check for cause

of blown fuse.

D. Thermostat set too warm for

ambient.

D. Adjust colder.

E. Power relay contacts corroded. E. Check and clean.

F. Defective thermostat. F. Check and replace.

G. Loose electrical connection. G. Check wiring.

H. Gearmotor overload protector

has cut off machine.

H. Turn switch to off then to on.

COMPRESSOR CYCLES

INTERMITTENTLY.

A. Low voltage A. Check line voltage

B. Dirty condenser B. Clean condenser

C. Air circulation restricted C. Remove restriction

D. Defective condenser fan motor D. Check and replace

E. Defective relay, overload

protector or starting capacitor.

E. Check and replace

F. Loose electrical connection F. Check wiring

MAKING WET ICE.

A. Surrounding air temperature

too high

A. Correct or move unit

B. High water level in float

reservoir

B. Lower water level, see page 6

C. Dirty condenser C. Clean condenser

D. Faulty compressor D. Check and replace*

E. Refrigerant leak E. Check and repair

F. ”O” ring leaking at bottom of

evaporator shell

F. Check and replace

*NOTE: Special care must be used with R404a (HP62) charged systems using (POE) Polyolester oil. The

refrigeration system must not be open longer than 15 min., and the appropriate drier must be used due

to the moisture absorption properties of the POE oil.

UNIT RUNS BUT MAKES NO

ICE.

A. Leak in refrigerant system A. Check and repair

B. Moisture in system B. Check, dehydrate and add drier to

system

C. No water C. Check water supply

D. ”O” ring leaking at bottom of

evaporator shell

D. Check and replace ”O” ring

E. Compressor not running E. Check and replace ”O” ring

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Cornelius I Series Manual de servicio Pagina 21

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