Jenn-Air JMW2427IL Mode D'emploi page 4

FOR SERVICE TECHNICIAN'S USE ONLY
IMPORTANT: Before powering microwave (MW) magnetron, be sure that a
load, such as a microwave-safe cup of water, is present in the microwave
oven cavity.
Unplug oven or disconnect power before performing the following checks:
A potential cause of a control not functioning is corrosion on connections.
■
Observe connections and check for continuity with an ohmmeter.
All tests/checks should be made with a VOM or DVM having a sensitivity
■
of 20,000 Ω per volt DC or greater.
Check all connections before replacing components, looking for broken
■
or loose wires, failed terminals, or wires not pressed into connectors far
enough. Damaged harness must be entirely replaced. Do not rework a
harness.
Resistance checks must be made with power cord unplugged from outlet
■
and with wiring harness or connectors disconnected.
IMPORTANT: Do not replace the control if there is no evidence of any failure.
To Enter Diagnostics Mode:
Before proceeding with any corrective action, perform the following steps to
enter the Diagnostics mode:
1. Enter Diagnostics mode by pressing LOWER OVEN>LOWER
LIGHT>OVEN CANCEL (repeat 2 more times).
TIP: You can also swipe your finger from left to right over the keypads 3
times.
NOTE: You do not need to wait for any audible or visual feedback from
the control between keypad presses.
2.
If control does not enter Diagnostics mode, continue repeating the
keypad sequence from Step 1. All the keypads will light up when the
control enters Diagnostics mode.
3.
From the Diagnostics menu, scroll to the desired selection using the
touch screen.
Error Diagnostics: View and clear the failure history.
Component Activation: Manually activate each relay.
Sensors & Switches: View the traditional oven cavity temperatures and
door/latch switch status.
Diagnostics
System Information: View the model number, serial number, and
software versions.
Exit Diagnostics
General Procedure: Error Codes
NOTE: All failures are stored in the failure history. To check if the error code
is still present, start a cooking function and wait 1 minute to check if the error
appears.
1. Plug in oven or connect power.
2.
Enter Diagnostics mode.
3.
Touch or scroll to "Error Diagnostics" in the Diagnostics menu, and then
touch "OK."
4.
To clear error codes, touch "Clear History."
5. If no failures are listed, the message "No Error" will appear on the screen.
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