76
PHTM II
Installation, Operating & Service Instructions
110331-01 - 5/20
19 Troubleshooting (continued)
Table 19-5: Active Fault Code and Corrective Actions (continued)
Code Name Possible Causes Corrective Action
H17
E17
Invalid
Safety
Parameters
[17.0] Control in program
mode.
Control was left in laboratory mode, cycle power.
[17.4] Boiler Type and
BCC mismatch.
WARNING
Asphyxiation Hazard.
Boiler type is factory set and must match boiler model. Boiler
type BCC determines minimum and maximum blower speeds.
Incorrect BCC could cause hazardous burner conditions and
improper operation resulting in severe personal injury, death or
substantial property damage.
To verify boiler type BCC is correct, a qualified technician
should do the following: Check boiler model and insert correct
Boiler Type BCC.
Check wiring to Model Key located inside control enclosure.
[17.1, 17.2, 17.3, 17.5,
17.6] Control is defective
Cycle power to control, if problem persists replace control or
BCC.
[17.7] Parameter transfer
from a new BCC is
required or in progress.
Remove and reconnect BCC and cycle power. If problem
persists replace control or BCC.
[17.6] Invalid fuel or
altitude selection or power
is cycled too soon after a
fuel selection
Select desired fuel and altitude. Note only 0-2,000 ft. is valid
altitude selection. If fuel selection [A06] on local display and
power is cycled too fast, select original fuel to clear alarm
before reselecting desired fuel.
[17.8] BCC is missing,
has incompatible software
revision or is damaged.
Remove and reconnect BCC and cycle power. If problem
persists replace control or BCC.
E18
Invalid
Application
Parameters
[18.0] Application
parameters are not valid.
Normal condition following a parameter download, set Factory
Defaults, parameter A10 . (Table 16-11 Menu A, Quick Menu)
[18.1] Parameter Model
Mismatch.
Repeat reset to factory default using parameter A10. If problem
persists replace control.
[18.2] CH Setpoint and
Modulation source both
selected.
(Feature not available with local user display). Only CH
Setpoint or Modulation source may be selected. Select only
a single feature. Check Central Heat Modulation Rate Source
and Central heat Setpoint Source.
[18.3] Invalid header
sensor configuration.
(Feature not available with local user display). Header/
recirculation Sensor selection must be set to "Header" when
selecting CH modulation sensor selection to "Header".
[18.4] Invalid Stepped
modulation parameters
(Start Offset-Recycle
Limit)<5°F.
(Feature not available with local user display). Check Stepped
Modulation Start Offset is 5°F greater than Stepped Modulation
Recycle offset. Check Flow and Flue temperature Stepped
Modulation Start Offset is 5°F greater than Flow and Flue
temperature Stepped Modulation Recycle Offset.
[18.5] Invalid Setpoint
interpolation parameters.
(Feature not available with local user display). Check CH
20mA Water Temperature is greater than CH 4 mA Water
Temperature.
[18.6] Invalid comfort
mode configuration.
(Feature not available with local user display). Comfort mode
selected and Header/Recirculation Sensor selection is not set
to "Recirculation" or Auxiliary thermostat input selection not set
to "Recirculation Enable".
!
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