Bunn CRT5 Repair Manual

CRT5CRTF5SERVICE & REPAIR MANUALBUNN-O-MATIC CORPORATIONPOST OFFICE BOX 3227SPRINGFIELD, ILLINOIS 62708-3227PHONE: (217) 529-6601 FAX: (217) 52

Page 10SERVICE This section provides procedures for testing and replacing various major components used in this brewer should service become ne

Page 11SERVICE (cont.)control thermostat and the white insert on the two pole 120 volt or three pole 120/240 volt terminal block and the red insert on

Page 12SERVICE (cont.)LIMIT THERMOSTATLocation: The limit thermostat is located inside the rear ofthe hood on the tank lid.Test Procedures:1. Discon

Page 13Location: The ON/OFF switch(s) are located on the front of the hood.Test Procedure:1. Disconnect the brewer from the power source.2. Viewing

Page 14SERVICE (cont.)SOLENOID VALVE Location: The solenoid valve is located inside the trunk on the lower center part of the component bracket.Test

Page 15SERVICE (cont.)START SWITCHLocation: On brewers w/out fresh light the start switch is located in the right front of the hood. On brewers w/f

Page 16SERVICE (cont.)TANK HEATERLocation: The tank heater is located inside the tank and secured to the tank lid.Test Procedures:1. Disconnect the

Page 17SERVICE (cont.)TANK HEATER (Cont.)P1168.71FIG.13TANKHEATERTERMINALSbrewers only) using eight #8-32 hex nut.12. Reconnect the inlet and outl

Page 18SERVICE (cont.)TANK HEATER SWITCHLocation: The tank heater switch is located on the rear of the brewer on the upper left side of the trunk.Tes

Page 19SERVICE (cont.)TANK HEATER SWITCH (cont.)P1135.80FIG.15TANKHEATERSWITCHTERMINALS15. Set tank assembly inside the hood on mounting bracket

Page 241711 100908BUNN-O-MATIC COMMERCIAL PRODUCT WARRANTYBunn-O-Matic Corp. (“BUNN”) warrants equipment manufactured by it as follows:1) All equipmen

Page 20Location: The thermal cut-off is located inside the hood connected to the tank heater.Test Procedures:1. Disconnect the brewer from th

Page 21SERVICE (cont.)TIMER (Early Models) Location: The timer is located inside the front of the trunk on the upper right side of component bracket.

Page 22SERVICE (cont.)TIMER (cont.)P1136FIG. 19 TIMER TERMINALSto obtain the desired brew volume.If voltage is not present as described, replace the t

Page 23DIGITAL BREW TIMER (Late Models) P2186.45FIG. 20 DIGITAL BREW TIMERSERVICE (cont.)Location: The timer is located inside the front of the trunk

Page 24Timer Setting:NOTE: Prior to setting or modifying volumes, check that the brewer is connected to water supply, the tank is properly fill

Page 25WARMER ELEMENT(S)Location: The warmer element(s) is located under the warmer plate.Test Procedures:1. Disconnect the brewer from the power s

L1BLKWHIBLKBLKBLKBLKBLK VIOBRN/BLKYELWHI/VIOLEFT FRONTWARMERLEFT REARWARMERRIGHT FRONTWARMERRIGHT REARWARMERBLK BLKTANK HEATERWHI (MODEL 20)NL2RED (MO

L1BLKBLKBLKBLKBLKBLKBRN/BLKYELVIOWHI/VIOWHI/REDWHI/REDWHI/REDWHI/BLUREDREDREDREDREDREDREDWHI/GRNBREWTIMERT1 T5 T3T4T2BLUSTART SWITCHWHIBLK BLKGRN/YELR

L1BLKBLK WHI/REDWHI/REDWHI/REDBLKYELWHI/VIOBRN/BLKVIOBLKBLKBLKLOWER CENTER WARMERON/OFF SWITCHON/OFF SWITCHON/OFF SWITCHON/OFF SWITCHON/OFF SWITCHBLK

Page 341711 110608 ContentsControl Thermostat ...

Page 4TROUBLESHOOTINGA troubleshooting guide is provided to suggest probable causes and remedies for the most likely problems encountered. If the pr

Page 5TROUBLESHOOTING (cont.)Brew cycle will not start (cont.) Water is not hotPROBABLE CAUSEREMEDY3. ON/OFF Switch4. Start Switch5. Timer6. Solenoid

Page 6TROUBLESHOOTING (cont.)Inconsistent beverage level in dispenserConsistently low beverage level in the dispenser Spitting or excessive steaming1.

Page 7TROUBLESHOOTING (cont.)Spitting or excessive steaming (cont.)Dripping from sprayheadWater flows into tank continu-ously (ON/OFF Switch "ON&q

Page 8TROUBLESHOOTING (cont.)Weak beverageDry coffee grounds remain in the funnelBrewer is making unusal noises 1. Filter Type2. Coffee Grind3. Sprayh

Page 9TROUBLESHOOTING (cont.)Brewer is making unusal noises (cont.)Low beverage serving tempera-ture4. Tank Heater1. Warmer2. ON/OFF Switch Remove an