LAARS Mascot LX MLXC 175 MBH - Install and Operating Manual User Manual
Page 50

LAARS Heating Systems
Page 46
LOCKOUT CODES
CODE
DESCRIPTION
E001
Memory error lockout
E002
Fan speed error
E003
Flame present when not in run
E004
Outlet auto-reset hi limit
E005
Water pressure switch error
E006
Safety Switch - TBD
E007
Optional low-water cutoff error
E008
Field Interlock error
E009
Blocked vent switch (175C, 175H only at this time)
E010
Blocked vent / fan proving switch error
E011
Lockout due to 3 consecutive flame losses
during run
E012
Lockout due to 3 consecutive failed ignitions
E013
Flue high temperature
E014
Outlet high temperature (manual reset hi limit)
E015
Flue sensor drift too high
E016
Outlet sensor drift too high
E017
Flue sensor error
E018
Outlet sensor error
E019
Inlet sensor error
BLOCKING CODES (may reduce input rate/heating capacity)
CODE
DESCRIPTION
b01
General (e.g. if setpoint not reach or other not specified)
b02
Anticycling
b03
Outlet temperature too high
b04
Delta T (Outlet-Inlet) temperature too high
b05
Flue temperature too high
b06
Line voltage too low
NOTIFICATION CODES
CODE
DESCRIPTION
n01
Fan speed limited due to flue gradient not detected
n02
Fan speed limited due to outlet temperature
n03
Fan speed limited due to delta T (Outlet - Inlet)
n04
Fan speed limited due to flue temperature
n05
DHW sensor not present in combi boiler. HW call will be blocked
n06
Outdoor sensor not preset
LOCKOUT CODES
CODE
DESCRIPTION
E001
Memory error lockout
E002
Fan speed error
E003
Flame present when not in run
E004
Outlet auto-reset hi limit
E005
Water pressure switch error
E006
Safety Switch - TBD
E007
Optional low-water cutoff error
E008
Field Interlock error
E009
Blocked vent switch (175C, 175H only at this time)
E010
Blocked vent / fan proving switch error
E011
Lockout due to 3 consecutive flame losses
during run
E012
Lockout due to 3 consecutive failed ignitions
E013
Flue high temperature
E014
Outlet high temperature (manual reset hi limit)
E015
Flue sensor drift too high
E016
Outlet sensor drift too high
E017
Flue sensor error
E018
Outlet sensor error
E019
Inlet sensor error
BLOCKING CODES (may reduce input rate/heating capacity)
CODE
DESCRIPTION
b01
General (e.g. if setpoint not reach or other not specified)
b02
Anticycling
b03
Outlet temperature too high
b04
Delta T (Outlet-Inlet) temperature too high
b05
Flue temperature too high
b06
Line voltage too low
NOTIFICATION CODES
CODE
DESCRIPTION
n01
Fan speed limited due to flue gradient not detected
n02
Fan speed limited due to outlet temperature
n03
Fan speed limited due to delta T (Outlet - Inlet)
n04
Fan speed limited due to flue temperature
n05
DHW sensor not present in combi boiler. HW call will be blocked
n06
Outdoor sensor not preset
LOCKOUT CODES
CODE
DESCRIPTION
E001
Memory error lockout
E002
Fan speed error
E003
Flame present when not in run
E004
Outlet auto-reset hi limit
E005
Water pressure switch error
E006
Safety Switch - TBD
E007
Optional low-water cutoff error
E008
Field Interlock error
E009
Blocked vent switch (175C, 175H only at this time)
E010
Blocked vent / fan proving switch error
E011
Lockout due to 3 consecutive flame losses
during run
E012
Lockout due to 3 consecutive failed ignitions
E013
Flue high temperature
E014
Outlet high temperature (manual reset hi limit)
E015
Flue sensor drift too high
E016
Outlet sensor drift too high
E017
Flue sensor error
E018
Outlet sensor error
E019
Inlet sensor error
BLOCKING CODES (may reduce input rate/heating capacity)
CODE
DESCRIPTION
b01
General (e.g. if setpoint not reach or other not specified)
b02
Anticycling
b03
Outlet temperature too high
b04
Delta T (Outlet-Inlet) temperature too high
b05
Flue temperature too high
b06
Line voltage too low
NOTIFICATION CODES
CODE
DESCRIPTION
n01
Fan speed limited due to flue gradient not detected
n02
Fan speed limited due to outlet temperature
n03
Fan speed limited due to delta T (Outlet - Inlet)
n04
Fan speed limited due to flue temperature
n05
DHW sensor not present in combi boiler. HW call will be blocked
n06
Outdoor sensor not preset
Table 18. Error Codes
12.3 Error Codes -
See
Table 18
.
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