Install Instructions

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.