Scotsman CMS1402 Wartungshandbuch PDF herunterladen (Seite 20)

SERVICE DIAGNOSIS: Electrical and/or Adjustments

SYMPTOM POSSIBLE CAUSE PROBABLE FIX

Nothing operates Bin level control holding machine off Bin is full - use some ice.

Check ice level control circuit, see

page 22.

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

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

Water inlet valve restricted Clean or replace valve

Low water pressure Check water filter or supply

Hot gas valve defective Replace hot gas valve

Water reg. valve (water cooled) leaks

through

Replace water reg. valve

Low refrigerant charge Locate leak, repair, replace drier,

evacuate and weigh in nameplate

charge.

Air intake temperature too high (air

cooled)

Reduce room temperature

Sump covers out of position Re-position sump covers

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

Low refrigerant charge Locate leak, repair, replace drier,

evacuate and weigh in nameplate

charge.

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

Dirty condenser Clean condenser

Air intake temp. too high Reduce room temperature

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

CMS1402

September 1993

Page 20

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