Scotsman CME1056 Manuel télécharger pdf (Page 31)

Service Diagnosis: Components

CME1056

May 2000

Page 31

Problem or Symptom Possible Cause Probable Correction

Fan motor does not

turn. Refrigeration light

may be on steadily or

blinks 3 times and

repeats.

Open motor windings, or

seized bearings

Replace fan motor

No power to fan motor Fan motor unplugged, check for voltage from

controller. If none, replace controller.

Pump motor does not

turn

Open motor windings, or

seized bearings

Replace pump

No power to pump Check electrical connections. If the unit is in

Freeze the pump should have power to it. If

not, replace the AutoIQ Controller.

Hot Gas Valve does

not open.

Open solenoid coil. Replace hot gas valve

Stuck valve Replace hot gas valve

No power to coil in Harvest Check wire connections, if ok, replace AutoIQ

Controller

Hot Gas Valve leaks

thru (warm tube

temperatures on both

sides of valve during

freeze)

Mechanical problem in

valve

Replace valve

Water Inlet Valve does

not open

Open solenoid coil Replace valve

Stuck valve Replace valve

No power to valve (early

part of harvest)

Check wire connections, if ok, replace AutoIQ

Controller

Water Inlet Valve does

not flow enough water

Restriction in water supply Check water filters and/or inlet screen.

Water Inlet Valve

leaks thru

Mechanical problem in

valve

Replace valve

Compressor does not

work

Unit in Clean cycle Push and release Freeze button.

Contactor coil open Replace contactor

Open starting components Check and replace

Open windings Check and replace compressor

Internal valve failure Replace compressor

Water level too low or not

sensed

Unit must be full of water before controller will

start compressor. Check water level and

sensor and harness.

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Scotsman CME1056 Manuel Page 31

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