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Building Technologies Basic Documentation LMV27... CC1P7541en
28 Error code list (of all LMV2 / LMV3 types) 17.12.2018
Error
code
Diagnostic code Meaning for the LMV27 Recommended measures or causes
251 (-5) Backup – burner identification is not defined
Define burner identification and repeat backup
252 (-4) After restore, pages still on ABORT
Repeat reset and backup
253 (-3) Restore cannot at present be made
Repeat reset and backup
254 (-2) Abortion due to transmission error
Repeat reset and backup
255 (-1) Abortion due to timeout during restore
Make a reset, check the connections and repeat the backup
146 # Timeout building automation interface
Refer to User Documentation Modbus (A7541)
1 Modbus timeout
2 eBus timeout
150 #
TÜV test
1 (-1)
Invalid phase
TÜV test may only be started in phase 60 (operation)
2 (-2)
TÜV test default output too low
TÜV test default output must be lower than the lower output limit
3 (-3)
TÜV test default output too high
TÜV test default output must be higher than the upper output limit
4 (-4)
Manual abortion
No error: Manual abortion of TÜV test by the user
5 (-5)
TÜV test timeout
No loss of flame after fuel valves have been shut
1. Check for extraneous light
2. Check wiring for short-circuit
3. Check to see if one of the valves is leaking
154 # Trim function: Invalid analog value
1. Check wiring of analog trim specification to see if there is an open-circuit / loose contact
2. Check the process date of the read-in trim specification
(parameter 916; 4 mA = -15% / 12 mA = 0% / 20 mA = 15%)
1 Start prevention
2 Warning message (trim function temporarily deactivated)
155 # Trim function: Invalid curve setting VSD / PWM fan
The curve setting of the VSD / PWM fan must include a reserve for the set trim range.
((Minimum value curve + negative trim range)
curve point (maximum value curve -
positive trim range))
1..9 Minimum value VSD curve fall below
The curvepoint of the VSD curve is below the permissible minimum value
(diagnostic code = curvepoint number; e.g. 1 = P1)
21..29 Maximum value VSD curve exceeded
The curvepoint of the VSD curve is above the permissible maximum value
(diagnostic code = curvepoint number; e.g. 21 = P1)
41..49 Fuel 1: Minimum value VSD curve fall below
Fuel 1: The curvepoint of the VSD curve is below the permissible minimum value
(diagnostic code = curvepoint number; e.g. 41 = P1)
61..69 Fuel 1: Maximum value VSD curve exceeded
Fuel 1: The curvepoint of the VSD curve is above the permissible maximum value
(diagnostic code = curvepoint number; e.g. 61 = P1)
156 #
Trim function: Maximum time for range limit exceeded
Warning message!
Trim function is in limitation for too long (parameter 535; 916 < 531 or 916 >
532).This can be an indication that the trim function or the VSD curve is set
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