Maintenance Items - Mitsubishi Electric QAHV-N560YA-HPB Service Handbook

[ IX Troubleshooting ]
IX Troubleshooting

[1] Maintenance items

1. Checking the error history
Take the following steps to view the last six error histories (error codes).
Refer to "[2] 2.Diagnosing Problems Using Error Codes" for information about error codes. (page 129)
Setting procedure
Step 1
Set the dip switches
SW2 and SW3.
Step 2
Select the desired
item with the push
switch SWP3.
Step 3
Press the push
switches SWP1 (↑) or
SWP2 (↓) to increase
or decrease the value.
Step 4
Press the push switch
SWP3 to save the
change.
HWE1517A
Set the dip switches on the circuit board as follows to view error histories.
SW2
10 5 6 7
OFF OFF OFF OFF
Press the push switch SWP3 to toggle through the item codes listed below.
Select an item code from 1 through 18, and press either of the push switches SWP1 or
SWP2 to display the error history (error code) in blinking form.
Refer to "Error history item list" on the next page for the types of errors that appear on
error history.
Press SWP3 to stop the blinking and return to the item code display.
- 121 -
SW3
8 9 10
OFF ON ON
GB