199/245
Building Technologies Division
Basic Documentation LME7...
CC1P7105en
Infrastructure & Cities Sector
24 Error code list with operation via external AZL2... display
29.11.2011
24 Error code list with operation via
external AZL2... display
Note:
Display depends on program!
Error code
Clear text
Possible cause
bAC Er3
Fault of compatibility program module to basic
unit during backup process
Program sequence of program module does not
match the basic unit
Err PrC
Fault of program module
- Error in data content of program module
- No program module fitted
Loc: 2
No establishment of flame at the end of safety
time
- Faulty or soiled fuel valves
- Faulty or soiled flame detector
- Poor adjustment of burner, no fuel
- Faulty ignition equipment
Loc: 3
Air pressure faulty (air pressure switch welded
in no-load position, decrease to specified time
(air pressure switch response time)
Air pressure switch faulty
- Loss of air pressure signal after specified time
- Air pressure switch has welded in no-load position
Loc: 4
Extraneous light
Extraneous light during burner startup
Loc: 5
Air pressure faulty, air pressure switch welded
in working position
Timeout air pressure switch
- Air pressure switch has welded in working position
Loc: 6
Fault of actuator
- Actuator faulty or blocked
- Faulty connection
- Wrong adjustment
Loc: 7
Loss of flame
Too many losses of flame during operation
(limitation of repetitions)
- Faulty or soiled fuel valves
- Faulty or soiled flame detector
- Poor adjustment of burner
Loc: 8
---
Free
Loc: 9
---
Free
Loc: 10
Error not relatable (application), internal error
Wiring error or internal error, output contacts, other
faults
Loc: 12
Valve proving
Fuel valve 1 leaking
Loc: 13
Valve proving
Fuel valve 2 leaking
Loc: 14
POC error
Error valve closure control POC
Loc: 20
Gas pressure switch-min open
Gas shortage
Loc: 22
Safety loop open
- Gas pressure switch-max open
- Safety limit thermostat cut out
Loc: 60
Analog power source 4...20 mA,
I
<4 mA
Wire breakage
Loc: 83
PWM fan faulty
- PWM fan does not reach the target speed within
the preset period of time, or
- After reaching the target speed, the PWM fan
leaves the tolerance band again (P650) for a time
exceeding the tolerance time speed deviation
(P660)
Loc: 138
Restore process successful
Restore process successful
Loc: 139
No program module detected
No program module plugged in
Loc: 167
Manual locking
Manual locking
Loc: 206
AZL2... incompatible
Use the latest version
Loc: 225
PWM fan faulty
- Fan speed dropped below the minimum prepurge