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Error
Diagnostic code
code
243 (-13)
244 (-12)
245 (-11)
246 (-10)
247 (-9)
248 (-8)
249 (-7)
250 (-6)
251 (-5)
252 (-4)
253 (-3)
254 (-2)
255 (-1)
146
#
1
150
#
1 (-1)
2 (-2)
3 (-3)
4 (-4)
5 (-5)
165
#
166
0
167
#
1
2
3
8
9
33
168 ÷ 171 #
200 off
#
201 off
#
VA
Bit 0
Valency 1
Bit 1
Valency 2..3
Bit 2
Valency 4..7
Bit 3
Valency 8..15
Bit 4
Valency 16..31
20079029
Faults - Possible causes - Solutions
Meaning of the REC 27.100A2 system
Backup – the data comparison between the internal
microprocessors is irregular
The backup data are incompatible
Error in access to the parameter Restore_Complete
Restoration – time-out during logging in EEPROM
The data received are contradictory
The restoration cannot currently be carried out
Restoration – interruption caused by inadequate
identification of the burner
Backup – the CRC of a page is not correct
Backup – the identification of the burner is not defined
After restoration, the pages are still in
INTERRUPTION
The restoration cannot currently be carried out
Interruption owing to transmission error
Interruption owing to time-out during the restoration
Time-out of the system automation interface
Modbus time-out
TÜV test
Invalid phase
The TÜV test default output is too low
The TÜV test default output is too high
Manual interruption
TÜV test timeout
Internal error
Watchdog reset internal error
Manual lockout
Manual lockout from remote reset command
Manual lockout from RDI21...
Manual lockout from PC interface
Manual lockout from RDI21...
Timeout/interrupted communication
Manual lockout from PC interface
Communication interrupted
Manual lockout after the PC tool has performed a tentative
reset
Internal error management
System free of errors
Lockout or error at start
No valid operation mode
No fuel train defined
No curve defined
Standardisation speed not defined
Backup / Reset impossible
60
Recommended measures
Repeat the reset and backup
The backup data are incompatible with the current version of
the software; the restoration is not possible
Repeat the reset and backup
Repeat the reset and backup
The series of backup data is not valid; restoration is not
possible
Repeat the reset and backup
The backup has an inadequate identification of the burner and
must not be transferred to the control box
The series of backup data is not valid; restoration is not
possible
Define the identification of the burner and repeat the
backup
Repeat the reset and backup
Repeat the reset and backup
Repeat the reset and backup
Carry out a reset, check the connections and repeat the
backup
Refer to the Modbus User Documentation (A7541)
The TÜV test can only be started in phase 60
(operation)
The output of the TÜV test must be lower than the minor output
limit
The output of the TÜV test must be greater than the upper
output limit
No error: Manual interruption of the TÜV test by the user
No flame loss after the fuel valves have been closed
1. Check for any extraneous lights
2. Check that there are no short-circuits
3. Check whether one of the valves is leaking
The control box has been manually blocked (no error)
During a regulation of the curve via the operating panel
RDI21...the timeout for the operating menu is passed (setting
via the 127 parameter), or else the communication between
REC 27.100A2 and RDI21... has been interrupted
During an adjustment of the curve via the PC interface,
the communication between REC 27.100A2 and the
operator panel has been interrupted for more than
30 seconds
The PC tool has performed a tentative reset, even if the system
has worked correctly
Carry out a reset; if the error arises repeatedly, replace the
control box
No error
Lockout or error due to lack of unit parameter settings
GB
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