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Page 15

ON

OF

F

ST

AR

T

SERVICE (cont.)

LIMIT THERMOSTAT

Location:

The limit thermostat is located inside the hood on

the tank lid.

Test Procedures:
1. Disconnect the brewer from the power source.
2. Disconnect the blue/black and black wires from

the limit thermostat.

3. With an ohmmeter, check for continuity across the

limit thermostat terminals.

If continuity is present as described, the limit thermo-
stat is operating properly.
If continuity is not present as described, replace the
limit thermostat.

P2267

P1800

BLU/BLK Lead to
Control Thermo-
stat

BLK to Power
Cord or Terminal
Block Black Insert

27479 121500

Removal and Replacement:
1. Remove all wires from limit thermostat terminals.
2. Carefully slide the limit thermostat out from under

the retaining clip and remove limit thermostat.

3. Carefully slide the new limit thermostat into the

retaining clip.

4. Refer to Fig. 5 when reconnecting the wires.

FIG. 4 LIMIT THERMOSTAT

FIG. 5 LIMIT THERMOSTAT TERMINALS

All manuals and user guides at all-guides.com

Содержание GMB-PS

Страница 1: ...E D BO ILED DR Y HE AT ED WHE N EM PT Y US ED ON HIGH FL AM E OR EX PO SE D EL EC TR IC EL EM EN TS FA ILURE TO COMPL Y RISKS INJU RY PN 658 198 5 BU NN O MA TIC CO RP OR AT ION FU NNEL CONTE NTS ARE...

Страница 2: ...Y OR FITNESS FOR A PARTICULAR PURPOSE The agents dealers or employees of Bunn are not authorized to make modifications to this warranty or to make additional warranties that are binding on Bunn Accord...

Страница 3: ...ED ON HIGH FLAME OR EXPOSED ELECTRIC ELEMENTS READ THE ENTIRE OPERATING MANUAL BEFORE USING THIS PRODUCT FAILURE TO COMPLY RISKS INJURY PN 00658 0000F 6 98 1985 BUNN O MATIC CORPORATION 00831 0000F 3...

Страница 4: ...REQUIREMENTS This brewer must be connected to a cold water system with operating pressure between 20 and 90 psi 138 and620kPa froma1 2 orlargersupplyline Ashut offvalveshouldbeinstalledinthelinebefore...

Страница 5: ...opped flowing from the funnel and let the water in the tank reheat to the proper temperature 7 Placethe ON OFF switchinthe ON upperposition andmomentarilypressandreleasethestartswitch Check the water...

Страница 6: ...ng to be done until switch is once again placed in the SET position OPERATING CONTROLS ON OFF SWITCH Placing the ON OFF switch in the OFF lower position stops brewing Stopping a brew cycle after it ha...

Страница 7: ...edorloosened Thiswillhelp to avoid twists and kinks in the tubing Make certain that all plumbing connections are sealed and electrical connections tight and isolated This brewer is heated at all times...

Страница 8: ...ions Clear or replace A Direction of flow arrow must be pointing towards brewer B Removestrainerandcheckfor obstructions Clear or replace Refer to Service Limit Thermo stat for testing procedures See...

Страница 9: ...row must be pointing towards the brewer B Remove the flow control and check for obstructions Clear or replace A Direction of flow arrow must be pointing towards the brewer B Removethestrainerandcheck...

Страница 10: ...er condi tions Excessive mineral build up on stainless steel surfaces can ini tiate corrosive reactions resulting in serious leaks 3 Solenoid Valve 1 Timer REMEDY A Direction of flow arrow must be poi...

Страница 11: ...and clear any obstructions Rebuild or replace the valve if necessary See page 17 BUNN paperfiltersmustbeused for proper extraction A fine or drip grind must be used for proper extraction Aseven holest...

Страница 12: ...ofgroundsleveledbygentlyshak ing The nut on the solenoid must be tight or it will vibrate during op eration Plumbing lines should not resting on the counter top A Thebrewermustbeconnected to a cold wa...

Страница 13: ...Inspection testing and repair of electri cal equipment should be performed only by qualified service personnel The brewer should be unplugged when servicing except when electrical tests are re quired...

Страница 14: ...2267 P1171 27479 091596 to the power source The indication must be a 120 volts ac for two wire 120 volt models three wire 120 208 and 120 240 volt models b 200 to 240 volts ac for two wire 200 volt or...

Страница 15: ...s operating properly If continuity is not present as described replace the limit thermostat P2267 P1800 BLU BLK Lead to Control Thermo stat BLK to Power Cord or Terminal Block Black Insert 27479 12150...

Страница 16: ...rewer wiring har ness 5 With the black wire removed remove the white red wire from the lower terminal 6 Check for continuity across the center and lower terminal with the switch in the ON position Con...

Страница 17: ...noid valve for a clicking sound as the coil magnet attracts 7 Disconnect the brewer from the power source If the sound is heard as described and water will not pass through the solenoid valve there ma...

Страница 18: ...he white orange wire to the top terminal and the white yellow wire to the bottom terminal If continuity is not present as described replace the switch ON OF F ST AR T N operating pressure Control 2422...

Страница 19: ...P1176 27479 121500 FIG 13 TANK HEATER TERMINALS Removal and Replacement 1 Shut off water supply to the brewer 2 Disconnect the water supply tubes on the tank lid for the tank and the faucet coil asse...

Страница 20: ...d proceed to 7 If voltage is not present as described refer to Wiring Diagrams and check the brewer wiring harness MI NU TE S BU NN O M AT IC P N 26 20 12 0 VA C ON OF F ST AR T P1170 P1177 27479 1215...

Страница 21: ...r source and replace the timer 7 With a voltmeter check the voltage across termi nals TL1 and TL4 when the ON OFF switch is in the ON position Connectthebrewertothepower source and press the START swi...

Страница 22: ...d Place the ON OFF switch in the ON position press and hold the START switch until three distinct clicks are heard and then release the switch Failure to release the switch within two seconds after th...

Страница 23: ...Page 23 27479 091596 All manuals and user guides at all guides com...

Страница 24: ...Page 24 27479 091596 All manuals and user guides at all guides com...

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