WILBUR
CO., INC.
C250AP
SERVICE MANUAL
Airpot Coffee Brewer
Table of Contents
Introduction . . . . . . . . . .
Using C250AP . . . . . . . . .
Start Up . . . . . . . . . . . . . .
Brewing . . . . . . . . . . . . . .
Care & Maintenance .
Troubleshooting . . . . . .
Wiring Diagram . . . . . . .
Parts List . . . . . . . . . . . . . .
®
WILBUR CURTIS CO., INC.
6913 Acco St., Montebello, CA 90640 Web Site: www.wilburcurtis.com Customer Service Tel: 800/421-6150
Technical Service Tel: 800/995-0417 E-Mail: techsupport@wilburcurtis.com
F-2003A.P6.5 . 11.0 8/30/99
Warranty . . . .
Back Cover
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Carton Contents
QTY ITEM
C250AP Coffee Brewer
1
Brew Cone, WC-3621
1
Service Manual
1
Paper Coffee Filters
25
Pitcher, 64 oz., WC3337
1
C250AP
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3
Rough-in Drawing
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2
9"
C 250 AP
¼"
26¾"
CLEARANCE
FOR AIRPOT
13¾" or 14¾"
DEPENDING ON
BREW CONE
S P E C I F I C A T I O N S
16½"
6' ELECTRICAL
CORD
17½"
Power Requirements: 1600W - 14 Amps (on a 20A Circuit)
Electrical: 120 VAC/60 Hz (Other Voltages Available)
WILBUR CURTIS CO., INC.
6913 Acco St., Montebello, CA 90640 Web Site: www.wilburcurtis.com Customer Service Tel: 800/421-6150
Technical Service Tel: 800/995-0417 E-Mail: techsupport@wilburcurtis.com
F-2003A.P6.5 . P2 10.8 8/27/99
Shipping Weight: 34lbs.
INTRODUCTION
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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 accommodate 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 become familiar with the coffee brewer. You should be able to start brewing coffee within 30 minutes.
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.
Figure 1. Filling the HeatingTank
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.
COFFEE BREWING
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.
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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.
TROUBLESHOOTING
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.
PROBLEM: Water in the heating tank is boiling, heating elements do not shut off.
SOLUTION:
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.
PROBLEM: Water in the heating tank does not heat up at all.
SOLUTION:
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.
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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
WHT #14
WHT #14
WHT
HEATING ELEMENT
1600W/120V
MANUAL RESET
THERMOSTAT
TOGGLE SWITCH
SPST 125/250V 25A
BLK #14
BLK #14
BREW LAMP
120V NEON
BLK
BLK
BLK
THERMOSTAT
SPST 277V 22A
POWER CORD
14/3 SJTO
GRN
COMMON STUD
CHASSIS GROUND
3
C250AP
Illustrated
Parts List
F-2003A.P6.5 . P6 10.7 8/30/99
4
C250AP
Parts List
INDEX
Nº PART Nº DESCRIPTION
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2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
25
26
27
28
29
30
31
32
33
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
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
COVER, TOP
SCREEN POUR HOLE
LID POUR HOLE WITH KNOB
SCREW, 6-32 x ¼ PHIL PAN HEAD S/S
KNOB, POUR-OVER LID
LABEL, CAUTION WATER ONLY
POUR PAN C250AP
GASKET, SILICONE POUR PAN
O' RING, ½" I.D.
FITTING, POUR PAN
CLAMP, HOSE
3
NUT, / JAM NPSM NICKEL PLATE
8
TUBING, ½" I.D., SILICONE
TUBING, / " I.D. SILICONE
5
16
FITTING ASSY, SPRAYHEAD
NUT, LOCK, / " BRASS
5
8
SPRAYHEAD, BLUE .178 DIA
COVER, FRONT C250
SCREW, 8-32 x ¼ PHILLIPS TRUSS
LABEL, FRONT PANEL
LIGHT, BREW 115V
FILTERS, PAPER COFFEE #506 1000/PKG
BREW CONE, UNIVERSAL 7 / " BLK PLASTIC
POWER SWITCH, 25A 120V
THERMOSTAT REPLACE KIT 202º
BRACKET, UPPER TANK SUPPORT
LEG, SCREW BUMPER, 8-32 STUD
POWER CORD, 6'
CORD GRIP / " O.D.
7
8
GRID, DRIP TRAY AIRPOT
INSERT, SILICONE GROMET
KIT, TANK LID RETROFIT
O' RING, ¾" I.D.
FITTING, SYPHON TUBE
FITTING ASSY, TANK OVERFLOW
NUT, LOCK, ¾ -16 BRASS
SHIELD, BUBBLE
9
WASHER, / " SILICONE
16
THERMOSTAT, HI LIMIT HEATER CONTROL
GUARD, SHOCK RESET THERMOSTAT
ELEMENT, HEATING 1600W, 115V
CLIP, HEATING ELEMENT CAPILLARY
FITTING, INLET
PLUG, DRAIN, FDA TEFLON
GUARD, SHOCK HEATING ELEMENT
INSULATION, WRAP GEM-120A/120P
TANK, ASSEMBLY COMPLETE
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Product Warranty Information
The Wilbur Curtis Company certifies that its products are free from defects in material and workmanship under normal use. The following limited warranties
and conditions apply:
3 Y ears, Parts and Labor , from Original Date of Purchase on digital control boards.
2 Years, Parts, from Original Date of Purchase on all other electrical components, fittings and tubing.
1 Y ear , Labor , from Original Date of Purchase on all electrical components, fittings and tubing.
Additionally, the W ilbur Curtis Company warrants its Grinding Burrs for Forty (40) months from date of purchase or 40,000 pounds of coffee, whichever
comes first. Stainless Steel components are warranted for two (2) years from date of purchase against leaking or pitting and replacement parts are
warranted for ninety (90) days from date of purchase or for the remainder of the limited warranty period of the equipment in which the component is
installed.
All in-warranty service calls must have prior authorization. For Authorization, call the Technical Support Department at 1-800-995-0417. Ef fective date
of this policy is April 1, 2003.
Additional conditions may apply. Go to www.wilburcurtis.com to view the full product warranty information.
CONDITIONS & EXCEPTIONS
The warranty covers original equipment at time of purchase only. The Wilbur Curtis Company , Inc., assumes no responsibility for substitute replacement
parts installed on Curtis equipment that have not been purchased from the
Wilbur Curtis Company, Inc. The Wilbur Curtis Company will not accept any responsibility if the following conditions are not met. The warranty does not
cover and is void under the following circumstances:
1) Improper operation of equipment: The equipment must be used for its designed and intended purpose and function.
2) Improper installation of equipment: This equipment must be installed by a professional technician and must comply with all local electrical,
mechanical and plumbing codes.
3) Improper voltage: Equipment must be installed at the voltage stated on the serial plate supplied with this equipment.
4) Improper water supply: This includes, but is not limited to, excessive or low water pressure, and inadequate or fluctuating water flow rate.
5) Adjustments and cleaning: The resetting of safety thermostats and circuit breakers, programming and temperature adjustments are the
responsibility of the equipment owner. The owner is responsible for proper cleaning and regular maintenance of this equipment.
6) Damaged in transit: Equipment damaged in transit is the responsibility of the freight company and a claim should be made with the carrier.
7) Abuse or neglect (including failure to periodically clean or remove lime accumulations): Manufacturer is not responsible for variation in
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: This shall include, but is not limited to, light bulbs, shear disks, “0” rings, gaskets,
silicone tube, canister assemblies, whipper chambers and plates, mixing bowls, agitation assemblies and whipper propellers.
9) Repairs and/or Replacements are subject to our decision that the workmanship or parts were faulty and the defects showed up under normal
use. All labor shall be performed during regular working hours. Overtime charges are the responsibility of the owner . Charges incurred by delays,
waiting time, or operating restrictions that hinder the service technician’s ability to perform service is the responsibility of the owner of the
equipment. This includes institutional and correctional facilities. The Wilbur Curtis Company will allow up to 100 miles, round trip, per in-warranty
service call.
RETURN MERCHANDISE AUTHORIZA TION: All claims under this warranty must be submitted to the Wilbur Curtis Company Technical Support
Department prior to performing any repair work or return of this equipment to the factory . All returned equipment must be rep ackaged properly in
the original carton. No units will be accepted if they are damaged in transit due to improper packaging. NO UNITS OR PARTS WILL BE AC-
CEPTED WITHOUT A RETURN MERCHANDISE AUTHORIZATION (RMA). RMA NUMBER MUST BE MARKED ON THE CARTON OR
SHIPPING LABEL. All in-warranty service calls must be performed by an authorized service agent. Call the Wilbur Curtis T echnical Support
Department to find an agent near you.
WILBUR CURTIS CO., INC.
6913 Acco St., Montebello, CA 90640 Web Site: www.wilburcurtis.com Customer Service Tel: 800/421-6150
Technical Service Tel: 800/995-0417 E-Mail: techsupport@wilburcurtis.com
Printed in U.S.A. 8/9/06 . 13.3 . F-2003 rev A
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