ROBUA AY00-120, Installation, Use And Maintenance Manual

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Diagnostics
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8
8 DIAGNOSTICS
8.1 OPERATIVE CODES
Table 8.1
Operative Codes AY00-120
CODES DESCRIPTION Warning (u) Error (E)
100
FAULT ON RESET CIRCUIT OF FLAME
CONTROL UNIT
NA
Power cycle the appliance.
If the code persists, shows up again or in case of doubt, contact
the TAC.
101
THERMOSTAT TRIP INTERNAL CIR-
CUIT LIMIT
Contact authorised Technical Assistance
102
FLUE GAS THERMOSTAT AND/OR
INTERNAL EXCHANGER THERMO-
STAT TRIP
Contact authorised Technical Assistance
103 HEATING BOARD (S70) ABSENT NA Contact authorised Technical Assistance
105
AMBIENT TEMPERATURE EXCEED-
ING OPERATIVE LIMITS
NA Reset is automatic when the triggering condition ceases.
106
AMBIENT TEMPERATURE LOWER
THAN OPERATIVE LIMITS
Non-blocking Warning (informative code).
The code is reset automatically when the trigger-
ing condition ceases.
NA
107
SYSTEM CIRCUIT WATER PRESSURE
SWITCH TRIP WITH SYSTEM IN
COLD MODE
Reset is automatic when the triggering condition
ceases.
NA
112 FLAME CONTROLLER UNIT ARREST Reset is automatic up to 4 attempts (in about 5
minutes).
Gas supply check.
Reset may be performed from the DDC or from the AY10 board
(menu 2, parameter 20).
If the code persists or in case of doubt, contact the TAC.
127
FAULTY INTERNAL CIRCUIT WATER
PRESSURE SWITCH OR INSUFFI-
CIENT INTERNAL CIRCUIT WATER
FLOW
Reset is automatic when the triggering condition
ceases.
Reset may be performed from the DDC or from the AY10 board
(menu 2, parameter 21).
If the code persists or in case of doubt, contact the TAC.
128
GAS SOLENOID VALVE EXCITED
DURING FLAME CONTROLLER
ARREST
NA
Power off the appliance.
Contact the TAC.
129
GAS SOLENOID VALVE WITHOUT
ELECTRICAL POWER
Reset occurs automatically if the gas solenoid
valve switches on again within 10 minutes (with
central flame control unit on).
Reset may be performed from the DDC or from the AY10 board
(menu 2, parameter 21).
If the code persists, shows up again or in case of doubt, contact
the TAC.
135
FAULTY INTERNAL CIRCUIT DELIV-
ERY TEMPERATURE PROBE
NA
Reset may be performed from the DDC or from the AY10 board
(menu 2, parameter 21).
If the code persists, shows up again or in case of doubt, contact
the TAC.
136 BLOWER FAULT
Reset occurs automatically 20 minutes after the
code is generated.
Reset may be performed from the DDC or from the AY10 board
(menu 2, parameter 21).
If the code persists, shows up again or in case of doubt, contact
the TAC.
175
INSUFFICIENT SYSTEM CIRCUIT WA-
TER FLOW
Reset is automatic when the triggering condition
ceases.
Check and clean water filters on the system.
Check for air in the system.
Check water flow pump.
Power cycle the appliance.
Reset may be performed from the DDC or from the AY10 board
(menu 2, parameter 21).
If the code persists, shows up again or in case of doubt, contact
the TAC.
176
FAULTY SYSTEM CIRCUIT DELIVERY
TEMPERATURE PROBE
NA
Reset may be performed from the DDC or from the AY10 board
(menu 2, parameter 21).
If the code persists, shows up again or in case of doubt, contact
the TAC.
177
FAULTY SYSTEM CIRCUIT RETURN
TEMPERATURE PROBE
NA
Reset may be performed from the DDC or from the AY10 board
(menu 2, parameter 21).
If the code persists, shows up again or in case of doubt, contact
the TAC.
178
HIGH HOT OUTLET WATER
TEMPERATURE
Reset is automatic when the triggering condition
ceases.
NA
179 DEFROST FUNCTION ACTIVATED
Non-blocking Warning (informative code).
The code clears automatically when anti-icing
function execution ends.
NA
80
INCOMPLETE OR INVALID
PARAMETERS
Contact the TAC.
81 INVALID P0 PARAMETERS
Reset is automatic when the triggering condition
ceases.
Contact the TAC.
82 INVALID P1 PARAMETERS
Reset is automatic when the triggering condition
ceases.
Contact the TAC.
84
FAULTY TRANSFORMER CONNEC-
TION OR 24 V AC FUSES
NA Contact the TAC.
85 INCORRECT MODULE TYPES NA Contact the TAC.
86 FAULTY BOARD, ROM NA Contact the TAC.