55
R1BK_50-RAD-ING-Manuale-1812.1_SK.3
2 Co
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2 Co
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2. MAINTENANCE
SUPPOR
T CENTRE
CODE
FAULT
POSSIBLE CAUSE
SOLUTION
RESET
E21
GENERAL INTERNAL
BOARD ERROR
INCORRECT SIGNAL
RECOGNITION BY THE
MODULATION BOARD
MICRO-PROCESSOR.
IF THE MODULATION BOARD DOES NOT
RESET THE ERROR AUTOMATICALLY,
REPLACE IT.
AUTOMATIC.
E22
P A R A M E T E R S
PROGRAMMING REQUEST
MICRO=PROCESSOR
MEMORY LOSS.
PARAMETERS REPROGRAMMING.
MANUAL RESET
(CUT OFF THE
TENSION).
E31
INCOMPATIBLE REMOTE
CONTROL
FUNCTION ACTIVE
WHEN THE CONNECTED
REMOTE CONTROL IS NOT
COMPATIBLE WITH THE
P.C.B.
REPLACE IT WITH A COMPATIBLE ONE.
AUTOMATIC
.
E32
COMMUNICATION ERROR
BETWEEN THE BOILER
BOARD AND THE MODBUS
BOARD
NO ELECTRICAL
CONNECTION;
CHECK THE WIRING;
AUTOMATIC.
MODBUS BOARD BROKEN;
REPLACE IT;
E35
RESIDUAL FLAME
FAULTY DETECTION
ELECTRODE;
CLEAN IT OR REPLACE IT;
MANUAL RESET
(PRESS THE RESET
‘
’ KEY).
FAULTY DETECTION
ELECTRODE CABLE;
REPLACE IT;
FAULTY MODULATION
BOARD.
REPLACE IT.
E40
SUPPLY VOLTAGE
SUPPLY VOLTAGE OFF THE
OPERATION RANGE (
≤
160
VOLTS).
CHECK THE POWER SUPPLY
NETWORK (THE ERROR DEACTIVATES
AUTOMATICALLY AS SOON AS THE
SUPPLY VOLTAGE FALLS BACK WITHIN
THE REQUESTED LIMITS).
AUTOMATIC.
E52
COMMUNICATION FAULT
BETWEEN MODBUS
CONTROLLER AND
MODBUS CONTROL UNIT
NO ELECTRICAL
CONNECTION;
CHECK THE WIRING;
AUTOMATIC.
MODBUS CONTROL UNIT
BROKEN.
REPLACE IT;
