Warning:
• Refer all service work to qualified technicians.
• Knowledge of proper installation and service procedures is essential to the safe maintenance
of KOLD-DRAFT equipment.
• Do not operate equipment that has been damaged.
• Always disconnect the power supply before servicing the equipment. Some circuits remain
energized when the ice machine is switched off.
• Never operate the ice maker with any covers, panels or other parts removed or not properly
secured.
• Never modify the circuitry of KOLD-DRAFT equipment from the original specifications.
• Use only genuine KOLD-DRAFT replacement parts.
• Use of non-approved parts when servicing KOLD-DRAFT equipment may create a safety
hazard or cause equipment and property damage.
• Use of non-approved parts, when servicing KOLD-DRAFT equipment, will void the equipment
warranty.
• Disconnect all electrical power before removing the protective terminal cover.
• Never energize the system unless the protective terminal cover is securely fastened.
• Never energize the system unless the compressor is properly connected to ground.
• Never reset a circuit breaker or replace a fuse without checking for a short circuit to ground.
An open fuse or tripped circuit breaker is an indication of a ground fault. Energizing a
compressor with a ground fault may cause terminal pin ejection, which will allow oil and
refrigerant to spray out of the system. This oil spray, combined with an electrical spark, can
ignite causing harm to personnel and property.
• Discharge all capacitors with a 20,000 ohm resister before working with them or removing
them from the ice machine. This must be done to avoid damage to measuring devices and the
risk of electrical shock.
Note:
• When servicing KOLD-DRAFT ice machine refrigeration systems, all work performed must
be consistent with the best refrigeration service practices. These systems must remain
clean, dry and properly charged with refrigerant, in order for the ice machine to operate as
designed.
• See the Remote Air-Cooled Condenser section of the manual for additional service
information related to these ice machines.
• All KOLD-DRAFT ice machine models utilize CSR (capacitor start/capacitor run)
compressors. Each model includes a potential start relay, a start capacitor and a run
capacitor, in the compressor circuitry, to start and operate these compressors properly and
with maximum efficiency. All compressors also include thermal protectors—external on
GT36x, GT56x, and GB56x models and internal on GB106x models. This procedure will
help diagnose problems with these compressors and all related components.
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