Curtis D500GT12A1000 TROUBLESHOOTING GUIDE

CURTIS AIRPOT BREWER

TROUBLESHOOTING GUIDE

Service & Sales 1-800-421-6150

D500GT12A1000

G3 Single Airpot Coffee Brewer

(Dispenser Sold Separately)

www.wilburcurtis.com

BREWER PARTS IDENTIFICATION

WATER RELATED

PART #

1. WC-826L VALVE, INLET 1.0 GPM 120V

2. WC-5527K KIT, PROBE WATER LVL FITTING, ORING, NUT

3. WC-889-101 VALVE, DUMP LEFT 120V 12W

4. WC-3763 KIT, VALVE REPAIR (FOR WC-889, DUMP VALVE)

5. WC-29025 SPRAYHEAD, PURPLE ADVANCE FLOW

6. WC-37252 KIT, HOT WATER FAUCET REPLACEMENT

7. WC-1806 SEAT CUP, SILICONE

8. WC-3621-101 BREW BASKET, NON METAL

9. WC-3316 BREW BASKET, STAINLESS STEEL

Service & Sales

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DESCRIPTION

HEAT RELATED

PART #

10. WC-1438-101 SENSOR, TEMPERATURE TANK

11. WC-8556 HEAT SINK & TRIAC

12. WC-904-04 HEATING ELEMENT

13. WC-522 THERMOSTAT, HI LIMIT HEATER

DESCRIPTION

MASTER CONTROL

14. WC-37064

15. WC-102 SWITCH, TOGGLE DPST 25A 125/25OVAC

KIT, LABEL & UNIVERSAL CONTROL MODULE

www.wilburcurtis.com

PARTS IMAGES

1

WC-826L

VALVE, INLET 1.0 GPM 120V

5

WC-29025

SPRAYHEAD, PURPLE

ADVANCE FLOW

2 3 4

WC-5527K

KIT, PROBE WATER LVL

FITTING, ORING, NUT

WC-889-101

VALVE, DUMP LEFT 120V 12W

6 7 8

WC-37252

KIT, HOT WATER FAUCET

REPLACEMENT

WC-1806

SEAT CUP, SILICONE

WC-3763

KIT, VALVE REPAIR

(FOR WC-889, DUMP VALVE)

WC-3621-101

BREW BASKET, NON METAL

9

WC-3316

BREW BASKET, STAINLESS STEEL

13

WC-522

THERMOSTAT, HI LIMIT HEATER

10 11 12

WC-1438-101

SENSOR, TEMPERATURE TANK

WC-8556

TRIAC & HEAT SINK

14 15

WC-37064

KIT, LABEL & UNIVERSAL

CONTROL MODULE

WC-102

SWITCH, TOGGLE DPST

25A 125/25OVAC

WC-904-04

HEATING ELEMENT

Service & Sales 1-800-421-6150

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TROUBLESHOOTING INSTRUCTIONS

POWER ISSUES

The unit will not turn on:

Check if the panel breaker is turned on. If it

1

is, proceed to STEP 2.

Check the voltage at the receptacle if it

2

reads: L1-L2 = 220v, L1-N = 120v, L2-N = 120v, N-G = 0v. Proceed to STEP 3 if accurate.

Check if the power cord is properly con-

3

nected to the receptacle. If it is, proceed to STEP 4.

Check that the toggle switch is in the ON

4

position. If it is ON, proceed to STEP 5.

HEATING ISSUES

Check the voltage at the power block, it

5

should read: L1-L2 = 220v, L1-N = 120v, L2-N = 120v, N-G = 0v.

Check the voltage at the reset thermostat, it

6

should read: between #1 & #3 = 220v and between #2 & #4 = 220v.

Check the voltage at the toggle switch, it

7

should read: between #1 & #3 = 220v and between #2 & #4 = 220v.

Check if there is 120v between pins #8 and

8

#16 on molex connector at UCM.

If all steps were taken and the unit still does

9

not turn on, replace the UCM.

Not heating:

LCD reads “Heating”

Yes:

Verify 220 volts between #2 & #4 on the Manual Reset Thermostat. If no, reset or replace the Manual Reset Thermostat.

Yes:

Verify 220 volts across the Toggle Switch. If no, replace the toggle switch.

Yes:

Verify 220 volts across the Heating Element. If yes, replace the Heating Element. If no, verify 120 volts between the Triac gate, Neutral, and L1. If yes, replace the Triac, if no, replace the UCM.

No:

Verify that the panel breaker is turned on and the receptacle has 220 volts. If not, consult an electrician.

Overheating/Steaming:

LCD reads “Heating”

Verify that the resistance on the Temperature Sensor is less than 10k ohms with a hot tank (200+ degrees) If no, verify correct mounting and that the walls of the tank are free of mineral deposits. If yes, bypass the sensor using a jumper with a 5k ohm resistor. If the LCD reads “ready” and the unit stops heating, replace the temperature sensor, if not, replace the UCM.

LCD reads “Ready to Brew”

Check the triac for continuity across A1 & A2, if continuity is present, replace the triac, if no continuity, replace UCM.

Ensure that the temperature is adjusted to compensate

i

for high elevation. The factory setting is 200°F. The temperature setting will need to be reduced Two degrees for every one thousand feet of elevation.

Service & Sales 1-800-421-6150

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TROUBLESHOOTING INSTRUCTIONS

TANK FILLING ISSUES

Not lling:

Yes:

Does the LCD read “Water Level Error”?

Yes:

Verify the ow rate to be a minimum of 1 gpm from outlet of the water lter. If not,

ensure that the inlet side of the water

lter is receiving a minimum of 1 gpm. If yes, replace the water lter. If not, con-

sult a plumber.

No:

Remove the orange wire from the probe.

Does the tank start lling?

Yes:

Replace water level probe

No:

Replace the UCM

BREWING ISSUES

LCD does not read “Brewing”:

If the LCD reads “Ready to Brew” and there is no response when Brew Button is pressed, replace the UCM.

LCD reads “Brewing”:

No water ow from the spray head: Does water ow from the hot water faucet? If

yes, verify 120 volts at the dump valve coil. If voltage is present at the dump valve coil, replace the dump valve. If 120 volts is not present at

the dump valve coil, conrm continuity of wiring

between molex connector and Dump Valve. If okay, replace the UCM. (Verify the resistance on the dump valve coil to be open in one direction, and under 2k ohm in the other direction BEFORE

REPLACING THE UCM) If water does not ow

from the hot water faucet, replace the Water Level Probe.

Brewing Short Pots:

Verify that the Hot Water Tank is lling correctly.

(See Tank Filling issues)

Overlling:

Turn OFF toggle switch.

Does the tank continue to ll?

Yes: Replace water inlet valve No: Ground the probe wire to the chassis.

Does the tank continue to ll?

Yes: Replace the UCM No: Replace Water Level Probe

Before replacing any parts, verify the

i

following:

Verify that the Dump Valve outlet tting on the tank,

the tubing between the tank outlet and the Spray head

tting, the Spray head, and Dump Valve are clear of

obstructions.

Ensure correct alignment of the spray head tting and

that the tubing is routed properly to allow for maximum

water ow. (No Kinks)

Overowing the Pot:

• Ensure that the Spray head has not been removed. Replace as needed.

• Ensure that the Hot Water Tank is not over-

owing (See Tank Filling Issues)

• Ensure that hot water is not owing from the Dump Valve when the toggle switch is turned off. If it is, replace the dump valve.

• Ensure Cold Brew Lock is set to 5°F.

Service & Sales 1-800-421-6150

www.wilburcurtis.com

NOTES

__________________________________________________________________________________________

Service & Sales 1-800-421-6150

www.wilburcurtis.com

Wilbur Curs Co., Inc.

6913 Acco Street, Montebello CA 90640

Customer Service: 800.421.6150 | 323.837.2300

csrassistance@wilburcurs.com

Tech Support: 800.995.0417

www.wilburcurs.com

JAN/2016 M202_TS_WC_D500_revNC

Curtis D500GT12A1000 TROUBLESHOOTING GUIDE

Specifications and Main Features

Frequently Asked Questions

User Manual