Jenn-Air JBC7624BS, Техническое образование

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DIAGNOSTICS & TROUBLESHOOTING
Jenn-Air Built-in Coffee System
n
5-3
For Service Technician Use Only
Control Panel
To Enter Load Test Mode:
1. With the coffee system in standby (plugged in with the
main switch on but the machine off), open the service
door.
2. Press 1 COFFEE, STRENGTH and OK until the display shows
the message “SELECT TEST” (hold for 6 seconds).
3. Close the service door, and press CAPPUCCINO. The
display will show the message “LOAD TEST MODE.” This
mode manually checks the devices listed. To activate the
relays manually in the test mode, press the keys as shown
in the following chart. Press the keys only once.
NOTE : The Load Test Mode display is in English only
Key Pressed Display message Device
1 Coffee EV1 3 Way Valve
2 Coffee EV2 ON + FAN 2 Way Valve + Fan
Menu HEATER ON Coffee Heater
Strength VAPORIZER ON Steam Heater
Size PUMP ON Pump
Up Arrow MOTOR UP + LIGHT Diverter Motor + Light
Down Arrow MOTOR DOWN Diverter Motor
OK GRINDER ON Grinder
Cappuccino EV1 ON
EV2 ON 3 Way Valve
2 Way Valve
To Exit or Reset the Load Test Mode Procedure:
To exit the procedure, press the power button on the side of
the coffee system to turn it off and back on again.
To Reset the Upper Position of the Infuser:
With the machine in standby (plugged in with the main
switch on, but machine off), open the service door and press
1 COFFEE, STRENGTH and OK until the display shows the
message “SELECT TEST” (hold for 6 seconds). Close the door
and press OK—the coffee system will turn OFF. Switch the coffee
system ON and wait for the rinsing to complete, then turn OFF.
NOTE: When the coffee system is reset, the language must be
set again.
To Enter Display Test Mode:
(Test the User Interface) Before proceeding with any
corrective action, perform the following steps to enter the
Display Test Mode. This mode checks the User Interface.
1. With the coffee system in standby (plugged in with the main
switch on, but the machine off), open the service door.
2. Press 1 COFFEE, STRENGTH, and OK until the display
shows the message “SELECT TEST” (hold for 6 seconds).
3. Close the service door and press 1 COFFEE. After a few
seconds, the display will show the message: “DISPLAY
TEST MODE.” When the relay is active, the appropriate
button is shown.
4. Press each key as shown in the following chart, and the display
will show the corresponding/indicated message. If any of
the messages fail to appear, replace the User Interface.
Key Pressed Message
1 Coffee BUTTON 1
2 Coffee BUTTON 2
Menu BUTTON 3
Strength BUTTON 4
Size BUTTON 5
Up Arrow BUTTON 6
Down Arrow BUTTON 7
OK BUTTON 8
Hot Water BUTTON 9
Cappuccino BUTTON 10
On/Standby BUTTON 0
To Exit or Reset Display Test Mode:
n
The machine will automatically exit the procedure after 10
seconds. This test resets the language and will restart from
the pump priming.
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To reset the board: With the machine in standby, open the
service door and press 1 COFFEE, STRENGTH and OK until
the display “SELECT TEST” is shown. Close the door and
press OK.
NOTE: When the coffee system is reset, the language must be
set again.
FOR SERVICE TECHNICIAN’S USE ONLY
Parts And Features
Rear view Service Door
Control Panel
W10629091A FOR SERVICE TECHNICIAN’S USE ONLY
DANGER
Electrical Shock Hazard
Only authorized technicians should perform diagnostic
voltage measurements.
After performing voltage measurements, disconnect
power before servicing.
Failure to follow these instructions can result in death
or electrical shock.
WARNING
Electrical Shock Hazard
Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.
Voltage Measurement Safety Information
When performing live voltage measurements, you must do the following:
■
Verify the controls are in the off position so that the appliance does not start when energized.
■
Allow enough space to perform the voltage measurements without obstructions.
■
Keep other people a safe distance away from the appliance to prevent potential injury.
■
Always use the proper testing equipment.
■
After voltage measurements, always disconnect power before servicing.
Tech Sheet Do not discard
A. Main On/Off Switch
A
A. Coffee spout B. Service door
A
B
A. 1 Coffee
B. 2 Coffee
C. Menu
D. Strength
E. Display
F. Down arrow key
G. Up arrow key
H. Hot water
I. Cappuccino
J. OK
K. Size
A B C D
E G
H
I
J K
F
Figure 1