Commissioning; Troubleshooting; Replacing Components; Reminders For Replacing Components - AFG MULTI20 Instrucciones Para Instalacion, Uso Y Manteniniento

• Identify the specific appliance model. The mo-
del number is detailed on the packaging and
on the appliance data plate.
• The appliance must be installed in a well-ven-
tilated room.
• Do not obstruct any air vents or drains present
on the appliance.
• Do not tamper with appliance components.

15 COMMISSIONING

After installation or maintenance operations,
check the appliance is in perfect working or-
der. In the event of any malfunction, consult the
next Paragraph "Troubleshooting".
Switch on the appliance as directed in the in-
structions and reminders for use given in Chap-
ter " INSTRUCTIONS FOR USE " and check:
• the current values of each phase.
• the correct operation of the heating elements.

16 TROUBLESHOOTING

The appliance does not heat.
• Defective heating element.
• Temperature thermostat defective.
• Safety thermostat tripped.
Heating cannot be adjusted
• Temperature thermostat defective.
Difficult or noisy operation of the tank mo-
ving device
• Defective actuator.
• Worn bearings.
Insufficient tank pressure
• Defective pressure switch;
• Display led not working (Fig.3-button3).
Loss of steam inside structure
• O-ring seals defective.
Lid unbalanced
• Springs broken.
Poor seal on lid
• Defective seal.
Release safety devices (Fig.17 - 17.1)
1. Position of sensitive elements
2. Position of thermostat bodies
12
3. Indicates the intervention of the overheating
safety devices for the heating elements (S1).
Need for mechanical reset to be performed by
a qualified technician
4. Access points for S1 reset to be carried out
using a suitable tool once the appliance is di-
sconnected from the power supply
5. Indicates the intervention of the tank overhe-
ating safety device (S2). Need for reset to be
carried out by a qualified technician following
the procedure on the display (see figure 17.1)
Explanation of Figure 17.1
1. Switch on the appliance using the switch on
the front
2. Off screen
3. Press the display On-Off button
4. Home screen
5. Press the Service button and enter the pas-
sword 114
6. Service screen
7. Press the reset button TR2
8. TR2 reset screen
9. If, after entering the password, the screen
shown in the figure is displayed, it indicates
that you must wait until the temperature falls
sufficiently
10. TR2 alarm active screen

17 REPLACING COMPONENTS

REMINDERS FOR REPLACING COMPO-
NENTS.
• Disconnect the appliance electric supply, if
present, before carrying out any operation.
• After replacing a gas system component,
check for gas leaks at connection points.
• After replacing an electrical system compo-
nent, check it is correctly wired.
• When replacing the radiant hotplates, handle
and re-assemble parts with the utmost care.