Faults And Solutions; Display And Fault Codes - Riello Residence Condens i User Instructions

Display and fault codes

When there is an operating fault a
flashing code is shown on the display
and the red led comes on in the event
of a definitive lockout.
For a description of the faults, refer to
the table below.
CODE DESCRIPTION OF TYPE OF
AL10 NUMBER OF IGNITION ATTEMPTS EXCEEDED (FLAME ABSENT/
CONDENSATION PRESENT)
AL20 LIMIT THERMOSTAT FAULT
AL21 LOW TEMPERATURE
SAFETY FAULT
AL26 RETURN LINE OVERTEMPERATURE
AL28 RETURN LINE/OUTLET PROBE DIFFERENTIAL FAULT
AL29 FLUE GASES PROBE OVERTEMPERATURE
AL34 TACKO FAN FAULT
AL40 SYSTEM WATER PRESSURE LOW (AFTER 10 MINUTES)
AL41 SYSTEM WATER PRESSURE LOW
AL52 GENERAL ELECTRONIC FAULT
AL55 FAULT DUE TO ABSENCE OF BOILER MODE CONFIGURATION
(CORRESPONDING JUMPER ABSENT)
AL60 DOMESTIC HOT WATER PROBE FAULT/WATER TANK PROBE
FAULT (IS i model)
AL71 OUTLET PROBE FAULT (OPEN/SHORT CIRCUIT)
AL73 RETURN LINE PROBE FAULT (OPEN/SHORT CIRCUIT)
AL79 OUTLET OVERTEMPERATURE/ RETURN LINE/OUTLET PROBE
DIFFERENTIAL FAULT
AL91 PRIMARY HEAT EXCHANGER CLEANING (CALL CUSTOMER SER-
VICE)
Resetting the faults
Wait about 10 seconds before resetting
normal operation conditions.
Then proceed as follows:
1) Display of the flashing alarm code
If just the flashing alarm is displayed
it means that a temporary stop was
diagnosed, if the fault is reset the
THERMOSTAT/CONDENSATION
31

Faults and solutions

LOCKOUT
LOCKOUT
LOCKOUT
PUMP
LOCKOUT
LOCKOUT
LOCKOUT
LOCKOUT
LOCKOUT
LOCKOUT
STOP
LOCKOUT
LOCKOUT
SEE DEDICATED
PART
STOP
STOP
LOCKOUT
SIGNAL