table 4
11.2 50570/G dispaly signals
Fault signals are displayed with the message (All) followed by the fault code.
11.3 Alarm or fault reset
Reset of alarms or faults is carried out by pressing key (B) for about 3 seconds; the machine
then goes into stand-by signalled by the message (Stb).
To turn the machine back on the key (B) must be pressed again.
If the fault has been repaired the machine shall display the tank and boiler temperatures,
otherwise the alarm message shall reappear.
11.4 Boiler overheating alarm
When the boiler temperature exceeds 105°C, this alarm is activated.
Boiler cooling is simultaneously activated as follows:
• cold water is introduced by a water/rinse load electric valve for 17s;
• 43s pause.
This cycle is repeated until the boiler temperature comes down to 105°C.
The cooling function is not performed or is suspended if the door is opened.
TYPE OF FAULT FAULT CODE SOLUTION
Boiler probe fault 1 Replace probe
Tank probe fault 2 Replace probe
Boiler overheating 3 Probe fault/control unit fault. Call Service
Technician.
Tank overheating 4 Probe fault/control unit fault. Call Service
Technician.
Lack of boiler heating 5 Check probe or resistance. Call Service Tech-
nician. Control and reset safety thermostat to
105°C.
Lack of tank heating 6 Check probe or resistance. Call Service Tech-
nician.
Water load 7 Tap turned off or not hooked up to water
supply system or rinse pump
Thermal motors 9 Objects stuck in the rotation pump. Check
pumps control function. Call service Techni-
cian.
Boiler load 10 Tap turned off or not hooked up to water
supply system. Boiler manostat detective or
water in manostat/boiler tube.
No rinse 11 Rinse pump damaged. Call Service Techni-
cian
To Next Page
Loading...
