Operator Manual PrecisionBrew Coffee Brewers ™ Model shown: PBC-2A2 Activate your warranty now at http://gmcw.com/warranty-registration Table of Contents Safety Information....2 Cleaning.........10 Installation.......4 Maintenance ......11 Start up ........5 Special Control Functions ..12 Operation ........6 Troubleshooting Guide..13 Adjustments ......6 Thermistor Chart ....20 Control Features......7 Parts Diagram and List..20 Air-Heated Shuttle Lighting ...8...
Safety Information Important Safety Information This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death. For your safety and the safety of others, read all warnings and the operator manual before installing or using the product.
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CAUTION For safe and proper operation, the appliance must be placed in a stable, vertical position. To reduce risk of serious burns or scalding, do not place hand or other body parts under dispenser or container while product is brewing. Always unplug unit or disconnect from power supply before servicing.
Installation Unpacking Instructions 1. The water line enters on the rear of the brewer. Use the right hand opening for water. Carefully unpack the machine and inspect immediately 2. Use 1/4" copper or flexible water line to prevent for shipping damage. The packaging may contain un- strain.
NOTICE: with a fused disconnect switch or a circuit breaker Double brewers only are provided with near the brewer. dual independent heating tanks. The L1 leg of single Important: Means shall be provided to ensure all pole phase double brewers is routed through a circuit disconnection from the supply.
Operation c) BREW BASKET HAS NOT BEEN REMOVED CAUTION: HOT LIQUID HAZARD SINCE LAST BREW - remove basket, empty Water used for brewing coffee is very hot. Use previously brewed grounds and grind a new caution when brewing, pouring, or transporting batch into brew basket.
Air-Heated Shuttle Lighting Programming Default brewing interface passcode is 1234. The USB drive must have a type-A connection, have USB Default service menu passcode is 4003. 2.0 capability, and a minimal 2 GB of storage space. USB programing is one of the ways a user can change the default recipes.
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Programming (continued) le s ools ou ou ch ch o o t t t) r “ ” g H “ ” g ss C “ e “ ” s ” ti c ” n ecip elect e “ ” s lect Coffee Brewers Grindmaster...
Cleaning 8. Wash the faucet shank with a bottle brush. CAUTION: BURN HAZARD 9. Clean the warmer and bottom of shuttle surfaces. Hot liquids and surfaces are present in this These surfaces must be clean for proper heat equipment. To avoid burns, use caution when transfer.
Maintenance To Remove the Heater WARNING: ELECTRICAL AND BURN 1. Disconnect power and remove top cover of brewer. HAZARD 2. Disconnect wire leads to heater, thermistor, level Dangerous voltages and hot surfaces are present probe, and ground wires. inside the machine. Maintenance should only be 3.
Special Control Functions Reset factory defaults: Select Tools / More / More / Defaults buttons on LCD display Control schematic WARNING: ELECTRICAL AND BURN HAZARD Dangerous voltages and hot surfaces are present inside the machine. Maintenance should only be performed by qualified service personnel.
Troubleshooting Guide WARNING: To reduce the risk of electrical shock, unplug the power cord before repairing or replacing any internal components of the unit. Before any attempt to replace a component, be sure to check all electrical connections for proper contact. Only a qualified service technician should perform electrical and mechanical adjustments or repairs.
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Troubleshooting Guide (continued) WARNING: To reduce the risk of electrical shock, unplug the power cord before repairing or replacing any internal components of the unit. Before any attempt to replace a component, be sure to check all electrical connections for proper contact. Only a qualified service technician should perform electrical and mechanical adjustments or repairs.
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Troubleshooting Guide (continued) WARNING: To reduce the risk of electrical shock, unplug the power cord before repairing or replacing any internal components of the unit. Before any attempt to replace a component, be sure to check all electrical connections for proper contact. Only a qualified service technician should perform electrical and mechanical adjustments or repairs.
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Troubleshooting Guide (continued) WARNING: To reduce the risk of electrical shock, unplug the power cord before repairing or replacing any internal components of the unit. Before any attempt to replace a component, be sure to check all electrical connections for proper contact. Only a qualified service technician should perform electrical and mechanical adjustments or repairs.
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Troubleshooting Guide (continued) WARNING: To reduce the risk of electrical shock, unplug the power cord before repairing or replacing any internal components of the unit. Before any attempt to replace a component, be sure to check all electrical connections for proper contact. Only a qualified service technician should perform electrical and mechanical adjustments or repairs.
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Troubleshooting Guide (continued) WARNING: To reduce the risk of electrical shock, unplug the power cord before repairing or replacing any internal components of the unit. Before any attempt to replace a component, be sure to check all electrical connections for proper contact. Only a qualified service technician should perform electrical and mechanical adjustments or repairs.
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Troubleshooting Guide (continued) WARNING: To reduce the risk of electrical shock, unplug the power cord before repairing or replacing any internal components of the unit. Before any attempt to replace a component, be sure to check all electrical connections for proper contact. Only a qualified service technician should perform electrical and mechanical adjustments or repairs.
Thermistor Chart Resistance chart showing the ohm value of the thermistor at the appropriate temperature. THERMISTOR CURVE FOR PART # 61128 °C °F RESISTANCE (OHMS) °C °F RESISTANCE (OHMS) 16325 1244 12697 1041 9951 7856 6246 5000 4028 3266 2663 2185 1802 1493 Parts Diagram and List Labels...
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Parts Diagram and List (continued) Brew baskets – Plastic and SS h t i t l i , s r " 4 " 6 Coffee Brewers Grindmaster ®...
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Parts Diagram and List (continued) 1004-001 Top level panels Grindmaster ® Coffee Brewers...
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Parts Diagram and List (continued) 1004-002 Top level panels Coffee Brewers Grindmaster ®...
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Parts Diagram and List (continued) 1004-003 Top level panels Grindmaster ® Coffee Brewers...
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Parts Diagram and List (continued) 1004-004 Top level panels Coffee Brewers Grindmaster ®...
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Parts Diagram and List (continued) 1004-005 Top level panels Grindmaster ® Coffee Brewers...
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Parts Diagram and List (continued) 1004-006 Top level panels Coffee Brewers Grindmaster ®...
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Parts Diagram and List (continued) 230-00143 Top chassis assy-Single Grindmaster ® Coffee Brewers...
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Parts Diagram and List (continued) 230-00166 Display assembly Coffee Brewers Grindmaster ®...
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Parts Diagram and List (continued) 230-00099 Dome assembly Grindmaster ® Coffee Brewers...
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Parts Diagram and List (continued) 230-00102 Tank assembly E E F
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Parts Diagram and List (continued) 230-00107 Single heated shuttle chassis assembly Grindmaster ® Coffee Brewers...
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Parts Diagram and List (continued) 230-00108 Double heated shuttle chassis assembly Coffee Brewers Grindmaster ®...
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Parts Diagram and List (continued) 230-00109 Single vacuum shuttle chassis Grindmaster ® Coffee Brewers...
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Parts Diagram and List (continued) 230-00110 Double vacuum shuttle chassis Coffee Brewers Grindmaster ®...
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Parts Diagram and List (continued) 230-00196 Power supply assembly Grindmaster ® Coffee Brewers...
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Parts Diagram and List (continued) 230-00105 Single base assembly Coffee Brewers Grindmaster ®...
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Parts Diagram and List (continued) 230-00106 Double base assembly Grindmaster ® Coffee Brewers...
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Parts Diagram and List (continued) 230-00113 Single IC base assembly Coffee Brewers Grindmaster ®...
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Parts Diagram and List (continued) 230-00114 Double IC assembly Grindmaster ® Coffee Brewers...
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Parts Diagram and List (continued) 230-00148 Presence switch bracket Coffee Brewers Grindmaster ®...
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Parts Diagram and List (continued) 230-00121 Single shuttle shelf with mixer 230-00122 Double shuttle shelf with mixers Grindmaster ® Coffee Brewers...
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Parts Diagram and List (continued) 230-00149 Shuttle shelf with warmer Coffee Brewers Grindmaster ®...
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Parts Diagram and List (continued) 230-00192 Warmer interlock switch assembly Grindmaster ® Coffee Brewers...
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Parts Diagram and List (continued) 230-00130 Shuttle shelf - vacuum shuttle 230-00121 Double shelf - vacuum shuttle Coffee Brewers Grindmaster ®...
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Parts Diagram and List (continued) 230-00126 Air heater assembly Grindmaster ® Coffee Brewers...
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Parts Diagram and List (continued) 230-00123 Drain hose assembly Coffee Brewers Grindmaster ®...
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Parts Diagram and List (continued) 2503-006 Air heated shuttle assembly Grindmaster ® Coffee Brewers...
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Parts Diagram and List (continued) 2503-007 Warmer shuttle assembly Coffee Brewers Grindmaster ®...
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Parts Diagram and List (continued) Vacuum shuttles with and without stand l t t l t t Grindmaster ® Coffee Brewers...
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