Temperature Adjustment; Turn The Boiler Off; Fault Finding - Saunier Duval ISOTWIN CONDENS F 35 E Instructions For Use, Installation & Servicing

High efficiency condensing combination boiler
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8.3

Temperature adjustment

8.3.1 Domestic hot water temperature
adjustment
The domestic hot water must be set at
max 63°C.
Push + or – on the
max temperature.
The ECO symbol remains until 49°C.
8.3.2 Heating temperature adjustment
Push + or – on the
water temperature between 22°C and
the maximum value allowed by your
installer.
Observation:
A quick push on +/- or
displays the temperature value previously
selected
Symbol and
fault code
The operating
indicator is OFF.
code F1, F4
code F2, F3
code F5
side to adjust the
side to change
/
side
Cause
Power failure
Ignition fault
Air flow failure
Overheating fault
Insufficient water
pressure in the system
Other defects

9 Turn the boiler off

Push the switch (6) until the "O" symbol
appears.
The appliance is no longer supplied
with electric power.
We advise you to turn off the appliance
gas supply if you leave home for a long
period.

10 Fault finding

If there is a fault, then a fault symbol
displays and the operating indicator on the
control panel flashes red.
Warning !
Never try to service or repair the appliance
by yourself and only start the appliance
once a skilled professional repaired the
fault.
Corrective action
Check the mains power supply is on and that
the appliance is switched on at the spur or
socket. The appliance starts automatically
once the power supply is on. If the fault
persists, please contact a skilled professional.
Deactivate the boiler
Wait 5 seconds and then start the boiler again.
If the fault continues, please contact a skilled
professional.
Please contact a skilled professionnal
Open the blue tap situated under the boiler
until you obtain a pressure between 1 and
2 bars on the indicator. If you have to fill it
this might be caused by a leakage in your
appliance. In this case, contact a skilled
professional to check the boiler and system.
Please contact a skilled professionnal
7

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