Scotsman CME650R Wartungshandbuch PDF herunterladen (Seite 24)

SERVICE DIAGNOSIS: Electrical and/or Adjustments

SYMPTOM POSSIBLE CAUSE PROBABLE FIX

Machine does not operate No power Reconnect power

High pressure control open Reset, check machine

High temperature cut out open Hot gas valve leaks thru, replace

P. C. Board Open Replace board

Master switch open Test/replace

Timer contacts open Replace timer

Bin thermostat holding machine

off

Test thermostat, replace if

contacts stuck open.

Makes thick ice/freezes up Harvest Cycle too short Adjust timer

Low water pressure Check water filter or supply

Check inlet water valve screen

and flow control.

Hot gas valve defective Replace hot gas valve

Cubes too small Adjust cube size

Cube size control stuck open Replace cube size control

Runs, makes no ice Pump problem or water leak in

reservoir

Check water system and pump

Water inlet valve either lets in no

water or leaks through

Replace inlet water valve

Timer stuck Replace timer

Relay does not energize; unit

stuck in harvest

Replace relay

Long freeze cycle Water inlet valve leaks through Replace inlet water valve

Water temperature too high Advise user

Cubes too small Cube size set wrong Adjust cube size

Cubes size control stuck closed Replace cube size control

Cubes too large Water inlet valve leaks through Replace inlet water valve and

adjust cube size control

Compressor cycles on and off on

pump down control

Low refrigerant charge Locate leak, repair, replace drier,

evacuate and weigh in nameplate

charge.

Liquid line valve or drier restricted Check and replace

TXV restricted Check and replace

Head pressure control valve not

working (low condensing temp.)

Check/replace head pressure

control valve

Compressor will not run Low pressure control will not close Check pump down control for

proper operation

Contactor coil open Check/replace contactor

Compressor windings open Check replace compressor

Unit cycles on and off anytime in

any cycle

Loose connection in PC board Replace PC board

CME650R

March 1994

Page 24

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 30

Kommentare zu diesen Handbüchern

Keine Kommentare

Scotsman CME650R Wartungshandbuch Seite 24

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Eiswürfelmacher Scotsman CME650R