Curtis C250AP User manual

SERVICE MANUAL
C250AP
®
Airpot Coffee Brewer
WILBUR
CO., INC.
Table of Contents
Introduction . . . . . . . . . .
Using C250AP . . . . . . . . .
Start Up . . . . . . . . . . . . . .
Brewing . . . . . . . . . . . . . .
Care & Maintenance .
Troubleshooting . . . . . .
Wiring Diagram . . . . . . .
Parts List . . . . . . . . . . . . . .
Warranty . . . .
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Back Cover
Carton Contents
C250AP Coffee Brewer
Brew Cone, WC-3621
Service Manual
Paper Coffee Filters
Pitcher, 64 oz., WC3337
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QTY ITEM
F-2003A.P6.5 . 11.0 8/30/99
WILBUR CURTIS CO., INC.
6913 Acco St., Montebello, CA 90640 Web Site: www.wilburcurtis.com Customer Service Tel: [phone]
Technical Service Tel: [phone] E-Mail: [email protected]

Power Requirements: 1600W - 14 Amps (on a 20A Circuit)
Electrical: 120 VAC/60 Hz (Other Voltages Available)
Shipping Weight: 34lbs.
S P E C I F I C A T I O N S
C250AP
Rough-in Drawing
F-2003A.P6.5 . P2 10.8 8/27/99
WILBUR CURTIS CO., INC.
6913 Acco St., Montebello, CA 90640 Web Site: www.wilburcurtis.com Customer Service Tel: [phone]
Technical Service Tel: [phone] E-Mail: [email protected]
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26¾"
¼"
6'ELECTRICAL
CORD
9" 16½"
17½"
CLEARANCE
FORAIRPOT
13¾" or 14¾"
DEPENDINGON
BREWCONE
C 250 AP

INSTALLATION
CAUTION Please use this setup procedure before attempting to
use this brewer. Failure to follow the instructions can result in injury or
voiding of the factory warranty.
1. Carefully unpack shipping carton. Check for any damage.
2. Place the brewer on a level surface.
CAUTION This brewer is shipped with the thermostat turned on. To
prevent damage to the heating element, DO NOT plug in power cord
until tank has been filled (step 3).
3. Slide an empty brew cone into place on the unit. Place a
container under the brew cone to catch any water that may drip.
4. Pour water into the pour hole on top cover of the brewer (fig 1). When
water starts to come out from the sprayhead, the tank is full. Stop
pouring.
5. Plug cord into a 120 volt electrical outlet. Switch on power at the toggle
switch behind the brewer.
6. Allow the brewer to come to full temperature. The ready light will come on. It will take 15 to 25 minutes
the first time the unit is plugged in. There will be some water discharged into the container as the water
heats up. This is normal. You are now ready to brew.
IMPORTANT Water may be lost from the tank due to evaporation if the brewer is left for long periods of
time without making coffee. When this occurs, top off the tank again (step 3 above) before attempting to
brew coffee.
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INTRODUCTION
1. Place a clean filter into the brewcone. Pour ground coffee into the filter.
The amount of ground coffee used will depend on personal or regional preferences.
2. Slide the brew cone on the guide rails in against the stop. Place an empty airpot under the cone.
Note that most airpots must be opened and the siphon assembly removed for filling. Preheating the airpot is
recommended and may increase the serving temperature by 4º-5º F.
COFFEE BREWING
Model C250AP is compatible with most 2.2 liter airpots, and other insulated dispensers up to 13¾" tall when
opened for filling (see illustrations). Starting early in 1994, this brewer was increased in height to accommo-
date the larger Deluxe SS brew cone, or insulated dispensers to 14¾" tall with the Universal (plastic) or
optional SS brew cones.
You don't need to connect a water line to use this coffee brewer. To brew coffee, water is poured into the
machine manually. Pour-over brewers are quite simple to service and maintain. Read this manual to be-
come familiar with the coffee brewer. You should be able to start brewing coffee within 30 minutes.
Figure1. FillingtheHeatingTank
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COFFEE BREWING, CONTINUED
3. Check that the READY TO BREW light is ON. Pour water into the pour hole to start brewing (the
volume should not exceed the size of the airpot).
You are now brewing coffee.
WARNING: Coffee coming from the brew basket will be hot. Allow all of the hot coffee to drip
from the brew cone before attempting to remove the airpot from the brewer.
CLEANING THE C250AP BREWER
Using a daily routine of cleaning the brewer will maintain the appearance and ensure good tasing coffee.
1. Wipe up any spills, dust or debris from exterior surfaces.
2. Remove the brew cone and wash it in a mild detergent solution. Use a soft bristled brush.
Rinse it thoroughly with clean water.
3. Remove the sprayhead and clean. Clean the dome area. Use a mild detergent solution.
4. Clean brew cone rails with a damp cloth or brush. Dry thoroughly.
CAUTION: When cleaning your coffee brewer do not use cleansers, bleach liquids, powders or any other
substance that contains chlorine. These products promote corrosion and will pit the stainless steel. USE
OF THESE PRODUCTS WILL VOID YOUR WARRANTY.
5. The inside of the heating tank may occasionally require the removal of lime buildup. The frequency will
depend on local water conditions.
PROBLEM: Water in the heating tank is boiling, heating elements do not shut off.
2
These procedures apply specifically to model C250AP-10. They also apply to other dash numbers
which are based on the -10 schematic (page 3), units rated 120 volts, 1600 watts, two wire plus
ground. Check the serial plate on your unit to determine power rating.
TROUBLESHOOTING
1.Defective thermostat: If READY TO BREW light does not turn on, replace the thermostat. You can
sometimes operate the brewer temporarily by turning the thermostat shaft counter clockwise until the
brew light comes on.
SOLUTION:
PROBLEM: Water in the heating tank does not heat up at all.
1. Check power supply. Make sure power switch is on.
2. Check thermostat. Make sure it is turned on, fully clockwise.
3. See that the button on the reset thermostat has not popped out. This is a safety feature that trips off
the power going to the heating element when the temperature gets too high. There are usually two
reasons for this to happen. Either the water in the heating tank has been allowed to evaporate to the
point that the heating element is no longer submerged in water or the thermostat is defective and the
heating elements do not shut off; the water boils off and exposes the element to air. To reset the
thermostat, press in the RED button on the lower front of the heating tank (#41). You will hear a
distinct "click".
4. Remove the wires from element terminals to test the element for continuity. You may use a clamp
type ammeter. Clamp it around black wire from thermostat to the heating element. Your ammeter
should read from 12.5 to 14 amps. You can run this test with out disconnecting the wires.
If no continuity exists or no amps are reading on your ammeter, replace the element.
SOLUTION:

WHT #14 BLK #14
HEATING ELEMENT
1600W/120V
BLK #14
WHT #14
MANUAL RESET
THERMOSTAT
BREW LAMP
120V NEON
BLK
BLK
THERMOSTAT
SPST 277V 22A
TOGGLE SWITCH
SPST 125/250V 25A
WHT
BLK
GRN
COMMON STUD
CHASSIS GROUND
POWER CORD
14/3 SJTO
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TROUBLESHOOTING, CONTINUED
PROBLEM Poor spray pattern over coffee grounds. Coffee is not evenly saturated.
SOLUTION
1. Check all the silicone water tubing for lime buildup and clean out.
2. Sometimes the silicone tubing gets kinked. Make sure the tubes are not too long where they might
fold; or too short where they could be pinched off when the unit is closed up.
3. Look for an obstruction in the sprayhead fitting and clean if necessary.
4. The plastic sprayhead might be deformed or in need of cleaning. The tiny point in the center of the
sprayhead is worn or is just slightly off-center. Replace the plastic sprayhead.
WIRING
DIAGRAM

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F-2003A.P6.5 . P6 10.7 8/30/99
C250AP
Illustrated
Parts List

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C250AP
Parts List COVER,TOP
SCREENPOURHOLE
LIDPOURHOLEWITHKNOB
SCREW,6-32x ¼PHILPAN HEADS/S
KNOB,POUR-OVERLID
LABEL,CAUTION WATER ONLY
POURPANC250AP
GASKET,SILICONEPOURPAN
O'RING, ½"I.D.
FITTING,POUR PAN
CLAMP,HOSE
NUT, / JAMNPSM NICKEL PLATE
TUBING,½"I.D.,SILICONE
TUBING, / " I.D. SILICONE
FITTINGASSY,SPRAYHEAD
NUT,LOCK, / "BRASS
SPRAYHEAD,BLUE.178DIA
COVER,FRONT C250
SCREW,8-32x ¼PHILLIPSTRUSS
LABEL,FRONTPANEL
LIGHT,BREW115V
FILTERS,PAPERCOFFEE#5061000/PKG
BREWCONE,UNIVERSAL7 / "BLKPLASTIC
POWERSWITCH,25A120V
THERMOSTATREPLACEKIT202º
BRACKET,UPPERTANKSUPPORT
LEG,SCREWBUMPER,8-32STUD
POWERCORD,6'
CORDGRIP / " O.D.
GRID,DRIPTRAY AIRPOT
INSERT,SILICONEGROMET
KIT, TANK LID RETROFIT
O'RING, ¾"I.D.
FITTING,SYPHONTUBE
FITTINGASSY,TANKOVERFLOW
NUT,LOCK, ¾-16 BRASS
SHIELD,BUBBLE
WASHER, / "SILICONE
THERMOSTAT,HILIMIT HEATER CONTROL
GUARD,SHOCKRESETTHERMOSTAT
ELEMENT,HEATING1600W,115V
CLIP,HEATINGELEMENTCAPILLARY
FITTING, INLET
PLUG,DRAIN, FDA TEFLON
GUARD,SHOCKHEATINGELEMENT
INSULATION,WRAPGEM-120A/120P
TANK,ASSEMBLYCOMPLETE
WC-5469
WC-5403
WC-5489
WC-4439
WC-3238
WC-3801
WC-54004
WC-4302
WC-4320
WC-2978
WC-4352
WC-4211
WC-5350
WC-5310
WC-2977
WC-4213
WC-2906
WC-6217
WC-4525
WC-39006
WC- 202
CR-10
WC-3621
WC- 102
WC- 515R
WC-6301
WC-3502
WC-1200
WC-1408
WC-6221
WC-4314
WC-37008
WC-4373
WC-2959
WC-2948
WC-4243
WC-6210
WC-4306
WC- 522
WC-4381
WC- 904-04
WC-5409
WC-29009
WC-4398
WC-4394
WC-3686
WC-5468
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INDEX
Nº PARTNº DESCRIPTION
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Printed in U.S.A. 8/9/06 . 13.3 . F-2003 rev A
WILBUR CURTIS CO., INC.
6913 Acco St., Montebello, CA 90640 Web Site: www.wilburcurtis.com Customer Service Tel: [phone]
Technical Service Tel: [phone] E-Mail: [email protected]
ProductWarrantyInformation
TheWilburCurtisCompanycertifiesthatitsproductsarefreefromdefectsinmaterialandworkmanshipundernormaluse. Thefollowinglimitedwarranties
andconditionsapply:
3Years,PartsandLabor,fromOriginalDateofPurchaseondigitalcontrolboards.
2Years,Parts,fromOriginalDateofPurchaseonallotherelectricalcomponents,fittingsandtubing.
1Year,Labor,fromOriginalDateofPurchaseonallelectricalcomponents,fittingsandtubing.
Additionally,theWilburCurtisCompanywarrantsitsGrindingBurrsforForty(40)monthsfromdateofpurchaseor40,000poundsofcoffee,whichever
comesfirst. StainlessSteelcomponentsarewarrantedfortwo(2)yearsfromdateofpurchaseagainstleakingorpittingandreplacementpartsare
warrantedforninety(90)daysfromdateofpurchaseorfortheremainderofthelimitedwarrantyperiodoftheequipmentinwhichthecomponentis
installed.
Allin-warrantyservicecallsmusthavepriorauthorization. ForAuthorization,calltheTechnicalSupportDepartmentat1-800-995-0417. Effectivedate
ofthispolicyisApril1,2003.
Additionalconditionsmayapply. Gotowww.wilburcurtis.comtoviewthefullproductwarrantyinformation.
CONDITIONS&EXCEPTIONS
Thewarrantycoversoriginalequipmentattimeofpurchaseonly.TheWilburCurtisCompany,Inc.,assumesnoresponsibilityforsubstitutereplacement
partsinstalledonCurtisequipmentthathavenotbeenpurchasedfromthe
WilburCurtisCompany,Inc. TheWilburCurtisCompanywillnotacceptanyresponsibilityifthefollowingconditionsarenotmet.Thewarrantydoesnot
coverandisvoidunderthefollowingcircumstances:
1) Improper operation of equipment: Theequipment must beused for itsdesigned and intendedpurpose and function.
2) Improperinstallationofequipment: Thisequipmentmustbeinstalledbyaprofessionaltechnicianandmustcomplywithalllocalelectrical,
mechanicalandplumbingcodes.
3) Impropervoltage: Equipmentmustbeinstalledatthevoltagestatedontheserialplatesuppliedwiththisequipment.
4) Improperwatersupply: Thisincludes,butisnotlimitedto,excessiveorlowwaterpressure,andinadequateorfluctuatingwaterflowrate.
5) Adjustments and cleaning: The resetting of safety thermostats and circuit breakers, programming and temperature adjustments are the
responsibilityoftheequipmentowner. Theownerisresponsibleforpropercleaningandregularmaintenanceofthisequipment.
6) Damagedintransit: Equipmentdamagedintransitistheresponsibilityofthefreightcompanyandaclaimshouldbemadewiththecarrier.
7) Abuseorneglect(includingfailuretoperiodicallycleanorremovelimeaccumulations): Manufacturerisnotresponsibleforvariationin
equipment operation due to excessive lime or local water conditions. The equipment must be maintained according to the manufacturer’s
recommendations.
8) Replacement of items subject to normal use and wear: Thisshallinclude,but isnot limitedto, lightbulbs,shear disks,“0” rings,gaskets,
siliconetube,canisterassemblies,whipperchambersandplates,mixingbowls,agitationassembliesandwhipperpropellers.
9) Repairsand/orReplacementsaresubjecttoourdecisionthattheworkmanshiporpartswerefaultyandthedefectsshowedupundernormal
use. Alllaborshallbeperformedduringregularworkinghours.Overtimechargesaretheresponsibilityoftheowner. Chargesincurredbydelays,
waiting time, or operating restrictions that hinder the service technician’s ability to perform service is the responsibility of the owner of the
equipment. Thisincludesinstitutionalandcorrectionalfacilities. TheWilburCurtisCompanywillallowupto100miles,roundtrip,perin-warranty
servicecall.
RETURNMERCHANDISEAUTHORIZATION: AllclaimsunderthiswarrantymustbesubmittedtotheWilburCurtisCompanyTechnicalSupport
Departmentpriorto performinganyrepair work orreturnof thisequipmentto thefactory. Allreturned equipmentmustbe repackagedproperly in
theoriginalcarton. Nounitswill beacceptedif theyaredamaged intransitduetoimproperpackaging. NOUNITSOR PARTS WILLBEAC-
CEPTEDWITHOUTARETURN MERCHANDISEAUTHORIZATION (RMA). RMANUMBERMUST BE MARKEDONTHE CARTON OR
SHIPPINGLABEL. Allin-warrantyservicecallsmustbeperformedbyanauthorizedserviceagent. CalltheWilburCurtisTechnicalSupport
Departmenttofindanagentnearyou.