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Service Manual
2010
SP 18
ULN-95 Icemaker
ULN-98 Icemaker
ULN-SS1095 Icemaker
U-CO29F
U-CO29A
ULN-29R
U-1075BEV
U-1075WC
U-CO1175
BI-2115
ADA15IM
Entertain with U-Line Elegance www.u-line.com
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Section 1 - General Information INTRODUCTION POTENTIAL PROBLEMS WITH HFC-134A Three generations of pride and quality manufacturing and design improvements are built into all U-Line products. The This service manual has been written to cover products result: U-Line leads the market with innovative technology and manufactured with HFC-134A. HFC-134A compressors superior craftsmanship. receive a synthetic based ester oil charge. The hygroscopic (water attraction) property of ester oil is man
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Section 1 - General Information TABLE OF CONTENTS SECTION 1 - GENERAL INFORMATION Introduction ..................................................................................................................................................................1-1 Potential Problems With HFC-134A.......................................................................................................................1-1 Safety Precautions .................................................................
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Section 1 - General Information • Altering, cutting of power cord, removal of power cord, SAFETY PRECAUTIONS removal of power plug, or direct wiring can cause serious injury, fire and/or loss of property and/or life IMPOR IMPORTTANT ANT and will void the warranty. PLEASE READ all instructions completely before • Never use an extension cord to connect power to the attempting to service the unit. unit. • Proper installation procedures must be followed if this • Always keep your working area dr
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Section 1 - General Information U-LINE CORPORATION LIMITED WARRANTY U-Line Corporation warrants each U-Line product to be free from defects in materials and workmanship for a period of one year from the date of purchase; and warrants the sealed system (consisting of the compressor, the condenser, the evaporator, the hot gas bypass valve, the dryer and the connecting tubing) in each U-Line product to be free from defects in materials and workmanship for a period of five years from the date of
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Section 1 - General Information PRODUCT LIABILITY POLICY Field service technicians are authorized to make an initial assessment. If in the servicer’s judgment the damage is the result of a product defect, the product would be removed and returned to U-Line in an unaltered condition. The dealer would then be authorized to permanently replace the end-user’s product at no cost to the end-user. Please call U-Line immediately at 800-779-2547 to initiate the RA and product ex- change process. If in
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Section 1 - General Information Occasionally the customer does not return their warranty cards. In SERIAL NUMBER FORMAT this case we use the date the unit was shipped to our distributor for The serial number is divided into four segments. A typical a beginning warranty date. This may cause the claim to be rejected serial number is 089469-01-0002. for a proof of purchase. If you want to check on a purchase date, you may contact the U-Line Corporation Customer Assurance The first two digits o
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Section 1 - General Information Our warranty records may not match the customer's information. In PARTS LISTING this case, a proof of purchase will be required. If you do not have the proof of purchase at the time the order is placed, the part will be How to Order Replacement Parts sent net 15 days, charged to a Visa or MasterCard or COD if you 1. Refer to Service Parts and locate the illustration(s) for the model don't have an open account with U-Line Corporation. When the you are servici
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Section 1 - General Information This page intentionally left blank. 1-8
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Section 2 - Troubleshooting CUSTOMER CALL GUIDE The following guide has been developed to help answer frequently U-Line’s warranty does not cover customer education calls. It asked questions. It can be used by persons scheduling service calls. has been reported that as high as 50% of all service calls Things to consider before scheduling a service call: performed are customer education calls. Concern Response The unit is not cold enough. • Are you familiar with the factory temperature specif
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Section 2 - Troubleshooting REFRIGERATION SYSTEM DIAGNOSIS GUIDE System Suction Suction Compressor Condenser Capillary Evaporator Wattage Pressure Line Discharge Tube Condition Normal Normal Slightly below Very hot Very hot Warm Cold Normal room temperature Overcharge Higher than Very cold may Slightly warm Hot to warm Cool Cold Higher than normal frost heavily to hot normal Undercharge Lower than Warm-near Hot Warm Warm Extremely Lower than normal room cold near normal temperature inlet - Ou
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INTERMITTENT YES AT 3:00 Section 2 - Troubleshooting ICE MAKER DIAGNOSIS FLOW CHART DOES THE UNIT REFRIGERATE? Sealed System Leak Low Voltage Electrical Failure Voltage Drop Compressor Failure Wiring Fan Motor Failure Defrost System Failure DOES THE UNIT HARVEST ICE IF THE EJECTOR BLADES ARE MOVED BY HAND OR WITH A WRENCH ? Temperature Control Failure Water Adjustment Bin Switch Failure WHERE DO THE EJECTOR BLADES STOP? Ice Motor Failure Mold Heater Failure Hold Switch Failure Limit Switch Fa
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Section 2 - Troubleshooting TROUBLESHOOTING DANGER Never attempt to repair or perform maintenance on the unit until the main electrical power has been disconnected from the unit Additional specific troubleshooting information can be found in Theory of Operation - Section 3, under the applicable model. Cause Remedy Will not eject ice (water frozen). 1. Control setting too cold. 1. Adjust control warmer (counterclockwise). 2. Control inoperable (1-2 contacts open) 2. Replace control. 3. Bin swit
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Section 2 - Troubleshooting Cause Remedy Low ice production. 1. Control set too cold. 1. Adjust control warmer (counterclockwise). 2. Fan motor stalled. 2. Replace fan motor. 3. Ice cubes too large. 3. Lower water fill adjustment. 4. Dirty condenser. 4. Clean condenser. 5. Bypass valve stuck open (Frost Free units only). 5. Replace bypass valve (Frost Free units only). Not freezing (compressor and fan motors operating). 1. Little or no frost pattern on evaporator. 1. Check for sealed system lea
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Section 2 - Troubleshooting Cause Remedy Water leak (under unit). 1. Water supply line leaking at solenoid valve inlet. 1. Tighten fitting or replace fitting gasket and/or fitting. 2. Water line leaking at solenoid valve outlet. 2. Replace water line and fitting. 3. Water line leaking at fill tube. 3. Tighten clamp or replace fill tube assembly. 4. Defrost drain line not in drain pan. 4. Position drain line in drain pan. 5. Crack in water line. 5. Replace water line. Water leak (inside unit). 1.
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Section 3 - Service and Repair The pressure of the refrigerant is reduced to the REFRIGERATION SYSTEMS evaporating, or low side, pressure. Normal Vapor/Compression Cycle • The reduction of pressure on the liquid refrigerant causes Refrigeration it to boil, or vaporize, until it reaches saturation temperature. As the low temperature refrigerant passes • Refrigerant is pumped from the compressor to the through the evaporator coil, it continues to absorb a lot of condenser as a high pressure
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Section 3 - Service and Repair DEFROST MODE Frost Free Refrigeration • Bypass solenoid valve open. COOLING MODE • Refrigerant flows through bypass system. • Bypass solenoid closed. • Vapor flows from condenser to evaporator without a • Evaporator fan operating. phase change. • Refrigerant flows through capillary tubes. • Drain heater on (U-CO29F only). • Normal vapor/compression cycle refrigeration (see page 3- 1). COMPRESSOR CONDENSER DRYER EVAPORATOR FLOW WHEN SOLENOID VALVE IS CLOSED CAPILLA
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Section 3 - Service and Repair Air flow in at evaporator blade Air passes though fin tube evaporator Air flow out at evaporator outlet Condensate drains down past the evaporator, into drain pan, and into condensate pan through drain hose. The drain trough is warmed during defrost by contact with evaporator fins. On U-CO29F model, drain trough is also warmed by drain heater attached to the drain pan. U-LINE1015 Figure 3. Frost Free Air Flow 3-3
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Section 3 - Service and Repair Models ULN-95, ULN-98, SP18, U-CO29A, U-CO1175, COMPRESSOR/ELECTRICAL BI2115, SS-1095 - Figure 4 SPECIFICATIONS EMI30HER Start winding resistance28 OHMS EMI30HER Run winding resistance8 OHMS Compressor Pins SD39 Start winding resistance11 OHMS To measure start winding resistance, measure across the C-S SD39 Run winding resistance5 OHMS pins. EMI50HER Start winding resistance12 OHMS To measure run winding resistance, measure across the EMI50HER Run winding resis
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Section 3 - Service and Repair MODELS U-1075BEV, U-1075WC, 29R- Figure 6 EMI30HER Start winding resistance21.2 OHMS EMI30HER Run winding resistance7.9 OHMS OVERLOAD PROTECTOR STARTING RELAY C S R RELAY COVER CAPACITOR UL183-3.1 Figure 6. Electrical Relay and Overload Protector Models U-1075BEV, U-1075WC, 29R 3-5
