Jenn-Air JMC2427IM Fiche Technique page 9

FAILURE ERROR LIKELY FAILURE CONDITION
F1
E0
Oven user interface (UI) failure
Internal
SUGGESTED CORRECTIVE ACTION PROCEDURE
NOTE: Before starting any test, cycle power to the oven (power Off, wait 10
seconds, and then power On).
PROCEDURE: Before proceeding, verify the error code by entering the
Diagnostics Menu and selecting "Error Diagnostics."
NOTE: If other error codes are stored, troubleshoot those other error codes
first.
1.
Unplug oven or disconnect power.
2. Confirm the control panel assembly is grounded to the oven chassis. If it
is, go to Step 6. If it is not, fix the connection.
3. Reassemble all parts and panels before operating.
4. Plug in oven or reconnect power and cycle power.
5. If error persists, unplug oven or disconnect power.
6.
Replace HMI-Central/UI board.
7.
Reassemble all parts and panels before operating.
8. Plug in oven or reconnect power and cycle power.
9. If error persists after HMI-Central/UI board is replaced, unplug oven or
disconnect power and replace Control Panel Assembly.
10. Reassemble all parts and panels before operating.
11. Plug in oven or reconnect power. Follow the on-screen prompts for model
selection.
12. Verify operation is normal. Enter Diagnostics Mode, select "Error
Diagnostics," and clear the history. If the Control Panel Assembly was
replaced, there is no need to clear the error history.
FAILURE ERROR LIKELY FAILURE CONDITION
F1 E4 Microwave Oven Relay 4903 Error
SUGGESTED CORRECTIVE ACTION PROCEDURE
NOTE: Before starting any test, cycle power to the oven (power Off, wait 10
seconds, and then power On). After powering on, be sure that a load, such as
a microwave-safe cup of water, is present in the microwave oven cavity, and
start a microwave cooking function. Wait 1 minute, and then verify that the
failure happens again.
1. Make sure that all interlock switches work properly: when door is open,
microwave light is On; when door is closed, microwave light is Off.
2.
Unplug oven or disconnect power.
3.
Check the following on the Microwave Appliance Manager:
a. Wire connections to Relay 4903.
Line Fuse
20A
BR
L1
Primary
Interlock
Switch
b. Check if Relay 4903 is shorted. If so then go to Step 7.
4. Reassemble all parts and panels before operating.
5. Plug in oven or reconnect power.
6. To check if the error code is still present, be sure that a load, such as a
microwave-safe cup of water, is present in the microwave oven cavity,
and start a cooking function in the microwave oven. Wait 1 minute to
check if the error appears. If error remains, go to Step 7. If not, go to Step
10.
7. Unplug oven or disconnect power and replace the Microwave Appliance
Manager.
8. Reassemble all parts and panels before operating.
9. Plug in oven or reconnect power.
10. Verify operation is normal. Enter the Diagnostics Menu, select "Error
Diagnostics," and clear the history.
9
Microwave Relay
1
Inverter
4903
BU
CN702
4