Honeywell Home Resideo EW701 Instructions De Service Et De Montage page 64

Example: Switch the checksum display on / off (postcard readout)
Display level L3 -
1.
Activate programming mode using the key combination < H > and then < V >.
When programming mode is activated,
+
the "M-" symbol will flash.
2. If the marking is not set on the "M-" symbol, press the < H >
key briefly until the "M-" symbol flashes.
3. Press the < V > key briefly if the "display checksum"
option is to be switched on or off.
Confirm acceptance of the password using the key combination < H > and then < V >.
4.
+
If the "No test number switched on" option is selected via the software, changeover
via the keys on the measuring device is not possible.
V1.00 / 3.5.2018
display "possible + active levels"
MU2H-0501ge23 R1020 63 EN