WD1050
12/04/2010
Pag. 27
8. ALARMS
All the alarm situations are quitted by means of the RESET procedure (see par. 6.9).
There may arise two types of alarm: fatal or not fatal.
In the first case, the message on the display is ‘AF’ followed by the alarm number.
In the second case, the message is ’A-‘ followed by the alarm number.
The instrument washer is equipped with the following alarms.
Alarm ID
Description
Action
1
Water is not being heated.
Check the condition of the safety
thermostat. Call the Technical
Assistance Service if the fault
persists.
2
The temperature difference between TL1 and TC
is greater than 2°C.
Repeat the cycle: It could be a
temporary alarm.
4
TL1 measures a temperature greater than target
temperature.
Repeat the cycle: It could be a
temporary alarm.
5
TL1 probe is "open".
Call the Technical Assistance Service.
10
TCL probe is "open".
Call the Technical Assistance Service.
11
Lack of cold water.
This alarm is active during the loading
phase.
It intervenes when the relative turbine
does not count any impulses for 30
seconds and the state of the pressure
switch does not change.
Check the water supply:
. cock and connection pipe
open/closed
. solenoid valve input
. mains water pressure
. the state of the pressure switch
. turbine operation
