Series 400
450 to 480
Num. Com-
ponent
Conditions Diagnosis
450
A2/A4
Prob. Communication on the
internal bus between the main
board and the I/O board A4
●
Check supply 11.5 VAC from T1 on the Main Board A4.
The green LED should be permanently lit.
●
On the A2 board, 3 green LEDs are to indicate the pres-
ence of food. They are to be permanently lit.
●
check the connections from the bus cable on both boards.
The orange LED on the A4 board is not to ash when the
unit is turned on.
460
A2
SD card
Undened device type.
Following a simultaneous
exchange of the SD card and
the Main Board the unit does
not recognise its type.
● Perform a conguration of the unit. See procedure in the
module 'control '.
470
SD Card
Communication problem with
the SD card
●
Check the SD card is inserted into its slot.
● Turn the unit off / back on, wait 30 seconds for verication.
480
File system
One or more system les do
not match the installed soft-
ware version.
480-1 to 480 are possible.
●
Perform a new update of the software for the unit with a
different USB stick to the one used last time.
●
Contact the manufacturer or his legal representative to
obtain specic updated les. Note the full number of the
service 480-x for this.
XIII.10
v03 • July-2016 • Hen
Service message module
Line Units Serial number (starting from) Sw Revision
VCCM
VCCWE
All ExxXH1009xxxxxxx 01-00-08
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