Ariston GENUS HE 35 Plus Installation And Servicing Instrucnion page 45

Display
S 01
S 02
S 04
S 05
S 06
S 25
S 26
S 27
S 30
S 31
S 80
Display
E 02
E 06
E 07
E 08
E 09
E 10
E 20
E 94
E 95
E 99
Antilocking of pump and three-way valve
To prevent locking of the components, the appliance performs a self-test every 24 hours: the pump starts up for 3 seconds and the
diverting valve is operated.
Frost protection
The boiler is fitted with an anti-freeze device, which checks the heating outlet temperature of the boiler: if this temperature falls
below 8°C, the pump starts up (circulation within the heating appliance) and runs for 2 minutes.
After two minutes' circulation, the microprocessor carries out the following check:
a - if the outlet temperature is > 8°C, the pump stops;
b - if the outlet temperature is > 3°C and < 8°C the pump continues for a further 2 minutes;
c - if the outlet temperature is < 3°C, the burner is ignited (in heating mode at minimum power) until a temperature of 33°C is
reached. Once this temperature is reached, the burner switches off and the circulation pump continues to operate for a further two
minutes.
It is possible to cause the pump to operate continuously using parameter P in the settings menu (see menu table).
The antifreeze protection is only activated if the boiler is in perfect working order,
in other words:
- the appliance water pressure is sufficient;
- the boiler is receiving an electrical supply;
- gas is being supplied.
Flame not detected on first attempt
Flame not detected on second attempt
Open circuit on Domestic hot water sensor
Short circuit on Domestic hot water sensor
Flame separation
Tank sensor open
Tank sensor short circuit
Tank overheating
External sensor open circuit
External sensor short circuit
Open circuit or short circuit on room sensor of the Clima Manager remote control
Insufficient water pressure
Open circuit on heating outlet sensor
Short circuit on heating outlet sensor
Open circuit on heating return sensor
Short circuit on heating return sensor
Contact open in the floor overheat safety device circuit (Flora room thermostat)
False flame detection with gas valve closed
Electronic control problem
Read error in heating outlet and return sensors
5 resets in less than 15 minutes. Resetting by a boiler ON/OFF operation
CAUSE
CAUSE
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