DIHR HT 12 - Extraordinary Maintenance - by Qualifi Ed Service Personnel; Signals and Alarms; Signals; Alarms

USA
page 55
Push START button A; an automatic cycle of 30 seconds will start, after this the machine will be in
STAND-BY mode.
•
Shut the water valve.
• Turned off the machine by switching the main power switch OFF (see pict. 26).
6.2 Extraordinary Maintenance – by qualifi ed Service Personnel
At least once per year, the machine should be supervised by qualifi ed Service Personnel:
1 Clean the solenoid-valve(s) fi lters.
2 Remove scale from the heating elements.
3 Control the status of the seals.
4 Control for components integrity and/or consumption.
5 Control the dispenser(s) effi ciency;
6 Check the effi ciency of the door safety switch.
A qualifi ed electrician, should check all electric connections inside the machine, at least once a year.
7. SIGNALS AND ALARMS
7.1 Signals
The signals messages are displayed, based upon their meaning.
When on the display appears DETERGENT LEVEL it means that the detergent level is low (only on machines equipped
with the optional "Chemicals level Sensor").
When on the display appears RINSE-AID LEVEL it means that the rinse-aid chemical level is low (only on machines equipped
with the optional "Chemicals level Sensor").
When on the display appears SHUT HOOD it means that you are trying an operation that cannot be done with the open
Hood or that you opened the Hood, interrupting a cycle in progress.
When on the display appears DRAIN WATER IN WASH TANK it means that you are trying an operation that cannot be
done with the wash tank full.
When on the display appears SELF-CLEANING: REMOVE FILTERS AND PRESS START it means that the machine
requires a self-washing cycle.
When on the display appears SELF-CLEANING CYCLE OVER it means that the machine has concluded its self-washing
cycle.
7.2 Alarms
The alarm messages are displayed, based upon their meaning.
STAND-BY
TYPE OF ALARM CAUSE
B1 BOILER FILLING FAIL
B2
BOILER PROBE FAIL.
B3 BOILER HEAT. ALARM
B4 RINSING FAILED
B5 BOILER OVERHEATING
E1 WATER LOAD FAILED
E2 TANK PROBE FAIL.
E3 TANK HEATING ALARM
E5 TANK OVERHEATING
E6 TANK DRAINING FAIL.
Z10 ALARM SL8 - BREAK TANK HIGH LEVEL
Table 3
pict. 26