Follett Tempo UCD100A30-CF, Руководство по эксплуатации и обслуживанию

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32 Tempo Undercounter Ice Machine Bin
Troubleshooting - Extended
Specific Errors and Issues
The advanced diagnostic capabilities of the electronic controls utilized on the 1, 3, and 5 Class units allow for easy
and thorough troubleshooting.
Navigation of the control is the key and is explained in the CONTROL OPERATION section of the manual,
along with control button layout, control function descriptions, a service mode menu and service menu selection
explanations.
Verification of temperature and thermistor performance can be identified by directly viewing thermistor readings in
the service mode.
Component failure issues can be identified through service mode menu #20, “Component Testing.” Individual
components can be switched on and off to check for both proper function of a specific component and also
delivery of supply voltage to the components through the relays and DC outputs located on the relay/power board.
Normal Operating Sounds
All models incorporate rigid foam insulated cabinets to provide high thermal efficiency and maximum sound
reduction for its internal working components. Despite this technology, your model may make sounds that are
unfamiliar.
Normal operating sounds may be more noticeable because of the unit’s environment. Hard surfaces such as
cabinets, wood, vinyl or tiled floors and paneled walls have a tendency to reflect normal appliance operating
noises.
Listed below are common refrigeration components with a brief description of the normal sounds they make.
NOTE: Your product may not contain all the components listed.
§ Compressor: The compressor makes a hum or pulsing sound that may be heard when it operates.
§ Evaporator: Refrigerant flowing through an evaporator may sound like boiling liquid.
§
Condenser Fan: Air moving through a condenser may be heard.
§
Water Valve: Running water and clicking as valve opens and closes.
§ Ice Dropping: Ice falling into the bin makes a dull thud sound. The sound decreases as the bin fills with ice.
§ Solenoid Valves: An occasional clicking sound may be heard as solenoid valves are operated.
Main Control
The main control board is very robust and is rarely the cause of system issues. It is important to fully diagnose
the board for any suspected failures before attempting to remove the board for replacement or service. Follow the
guidelines below to fully test and diagnose the main control.