80
ALTA
Installation, Operating & Service Instructions
110327-02 - 7/20
19
Troubleshooting
(continued)
Table 19-6: Detailed Fault Code (found on"
cc
" and "
bb
" menus, continued)
Code Detailed
Code
Type
Condition
H17
E17
H17.0
Hold
Control in program mode.
H17.1
Hold
Internal Safety Core error.
E17.2
Lockout
Parameter CRC error.
E17.3
Lockout
Parameter CRC error.
H17.4
Hold
Boiler Type and BCC mismatch.
H17.5
Hold
Parameter value read from safety core differs from value read in application MCU.
H17.6
Hold
Safety core refused write of fuel selection parameter.
H17.7
Hold
Parameter transfer from a new BCC is required or in progress.
E17.8
Lockout
BCC is missing, has incompatible software revision or is damaged.
H18
E18
E18.0
Lockout
Application parameters are not valid, normal condition following a new parameter
download.
H18.1
Hold
Actual boiler model doesn't match with control detected model during factory reset.
H18.2
Hold
CH Setpoint and Modulation source both selected.
H18.3
Warning
Invalid header sensor configuration.
H18.4
Hold
Invalid Stepped modulation parameters (Start Offset-Recycle Limit)<5°F (?°).
H18.5
Warning
Invalid Setpoint interpolation parameters.
H18.6
Hold
Invalid comfort mode configuration.
E18.7
Lockout
Selected boiler model default parameters not available.
H18.8
Hold
Boiler pump outpet set to 0 or boiler pump outpet set to 3 and Aux. pump outlet is
not set to 3.
E19
E19.0
Lockout
Air/Fuel ratio outside acceptable limit.
H20
E20
H20.0
Warning
Safety core actuators.
E20.1
Lockout
Calibration low limit.
E20.2
Lockout
Calibration high limit.
E20.3
Lockout
Calibration deviation.
E20.4
Lockout
Ion base value invalid.
H21
H21.0
Hold
Ion control deviation.
H21.1
Hold
Offset adaption at limit.
E21.2
Lockout
Ion control deviation.
E21.3
Lockout
Gas valve current fault.
H22
H22.0
Hold
No flame build up at burner start.
H22.1
Hold
No flame build up at burner start.
H23
H23.0
Hold
A flame was detected before burner start.
H23.1
Hold
Gas valve circuit, after burner run, a flame is detected for 15s, although a valve has
been switched off.
H23.2
Hold
Safety core flame amplifier.
H23.3
Hold
Safety core flame amplifier.
H24
H24.0
Warning
Flame loss in operation.
H24.1
Hold
Flame loss in stabilization phase.
H24.2
Hold
Flame signal loss in safety time.
H24.3
Hold
Flame signal loss in safety time.