Instruction manual SGE 99
s
15 Performing
maintenance
15.1 Introduction
Caution
Maintenance may only by carried out by an approved service and
maintenance engineer.
At each service, the water heater undergoes maintenance on both the water
side and the gas side. The maintenance must be carried out in the following
order.
1. Preparation for maintenance
2. Water-side maintenance
3. Gas-side maintenance
4. Solar collector maintenance
5. Finalizing maintenance
Note
Before ordering spare parts, it is important to write down the installation type,
water heater model, and the full serial number of the water heater. These details
can be found on the rating plate. Only by ordering with this information can you
be sure to receive the correct spare parts.
15.2 Preparation for
maintenance
To test whether all components are still working properly, complete the following
steps:
1. Activate the
MENU
with .
2. Use: and to place the cursor beside
OFF
.
3. Confirm
OFF
with .
4. Wait until the fan has stopped. The icon is then dimmed.
Caution
Failure to wait until the fan stops can cause damage to the water
heater.
5. Switch the appliance OFF (position 0) using the ON/OFF switch on the
control panel.
MENU
»OFF
^ ON
È WEEK PROGRAM
