7776
ON SCREEN DESCRIPTION POSSIBLE SOLUTIONS
Comparison:
LVL DC:xxx TC:xxx
The Door Card and Terminal Card do not
agree on the state of the Level Contact.
“xxx” will be either “ON” or “OFF”.
Remove level contact wiring and jumper the
terminals, if the problem is resolved check the wiring.
If the problem remains the boards or ribbon cable may
need to be replaced.
Comparison:
MAN DC:xxx TC:xxx
The Door Card and Terminal Card do not
agree on the state of the Main Valve
Output. “xxx” will be either “ON” or
“OFF”.
Remove solenoid wires; if the problem is resolved
check the solenoid wiring. If the problem remains
the same, the boards or ribbon cable may need to be
replaced.
Comparison:
PLT DC:xxx TC:xxx
The Door Card and Terminal Card do
not agree on the state of the Pilot Valve
Output. “xxx” will be either “ON” or
“OFF”.
Remove solenoid wires; if the problem is resolved
check the solenoid wiring. If the problem remains
the same, the boards or ribbon cable may need to be
replaced.
Comparison:
PoC DC:xxx TC:xxx
The Door Card and Terminal Card do
not agree on the state of the Proof of
Closure Contact. “xxx” will be either
“ON” or “OFF”.
Remove Proof of Closure contact wiring wires and
jumper the terminals, if the problem is resolved check
the wiring. If the problem remains the boards or
ribbon cable may need to be replaced.
Comparison:
PRH DC:xxx TC:xxx
The Door Card and Terminal Card do not
agree on the state of the High Pressure
Contact. “xxx” will be either “ON” or
“OFF”.
Remove high pressure contact wiring and jumper the
terminals, if the problem is resolved check the wiring.
If the problem remains the boards or ribbon cable may
need to be replaced.
Comparison:
PRL DC:xxx TC:xxx
The Door Card and Terminal Card do not
agree on the state of the Low Pressure
Contact. “xxx” will be either “ON” or
“OFF”.
Remove low pressure contact wiring and jumper the
terminals, if the problem is resolved check the wiring.
If the problem remains the boards or ribbon cable may
need to be replaced.
Comparison:
STRT DC:xxx TC:xxx
The Door Card and Terminal Card do not
agree on the state of the Start Contact.
“xxx” will be either “ON” or “OFF”.
Remove start contact wiring and jumper the
terminals, if the problem is resolved check the wiring.
If the problem remains the boards or ribbon cable may
need to be replaced.
Control Error The Internal Control State is not valid. One of the boards will likely need to be replaced.
DC MSP430 No
Communications
The TC430 Temperature chip on the Door
Card is not responding.
Faulty Door Card
EEPROM Error The EEPROM settings are corrupted. Faulty Door Card
ESD Input The ESD Input was open while the
system was running or attempting to
start.
Check wiring.
Expansion Card Error / 4-20
Exp Card: 4-20 Level Low
The 4-20mA Level Input was below the
Level Low Setpoint while the system
was running with the Level Event
Restart feature disabled.
Verify proper settings and check for issues outside the
system.
Expansion Card Error / 4-20
Exp Card: 4-20 Level Open
The 4-20mA Level Input is open (reading
below ~ 3.75mA)
Check wiring.
Expansion Card Error / 4-20
Exp Card: 4-20 PRS High
The 4-20mA Pressure Input was above
the Pressure High Setpoint while the
system was running with the Main Valve
open.
Verify proper settings and check for issues outside the
system.
Expansion Card Error / 4-20
Exp Card: 4-20 PRS Low
The 4-20mA Pressure Input was below
the Pressure Low Setpoint while the
system was running with the Auto
Restart feature disabled.
Verify proper settings and check for issues outside the
system.
Expansion Card Error / 4-20
Exp Card: 4-20 PRS Open
The 4-20mA Pressure Input is open
(reading below ~ 3.75mA)
Check wiring.
Expansion Card Error / 4-20
Exp Card: Card Fail
The 4-20mA Expansion Card is not
responding.
This may indicate that the card is not installed
correctly or that the feature is enabled when the card
is not present.
Expansion Card Error /
Modbus Card: Card Fail
The Modbus Expansion Card is not
responding.
This may indicate that the card is not installed
correctly or that the feature is enabled when the card
is not present.
ON SCREEN DESCRIPTION POSSIBLE SOLUTIONS
Flame detected before start Flame was detected prior to the system
igniting the pilot.
This may indicate a leaky valve, inadequate purge
time, or a faulty Terminal Card.
Flame Fail The system failed to ignite the pilot
within the allocated number of retry
attempts.
See the Flame Detection Troubleshooting section.
Flame Rod Test Error / Adjust
Flame Rod Position
The Flame Rod or associated wiring may
be shorted to ground thus preventing it
from properly detecting flame.
If the error shows up immediately and does not allow
you to start the system, remove the 4 pin terminal
block to the ignition coil and try starting again. If you
can start the system, there is a wiring problem. If
you cannot start the system, one of the boards or the
ribbon cable may be faulty.
If the system runs for a while and then shuts down
with this error after a random amount of time, the
problem is that the flickering of the flame is lining
up with the internal self test. Usually moving the rod
more into the flame will resolve this issue.
High Pressure The High Pressure Contact is open or
the 4-20mA pressure reading remained
above the 4-20mA Pressure High
Setpoint for 2s after the main valve
opened.
Verify proper settings and check for issues outside the
system.
High Temp The Process Temperature rose above the
High Temp ESD Setpoint.
Verify proper settings and check for issues outside the
system.
High Temp Setpoint
Mismatch
The Door Card and Terminal Card do not
agree on the value of the High Temp
ESD Setpoint.
Reset to factory defaults.
High Voltage xx.x Volts The system voltage remained above the
High Voltage Alarm point for 20s or more
and Auto Restart is disabled. “xx.x” is
the voltage reading at the point in time
when the shutdown occurred.
Verify proper settings and check for issues outside the
system.
HT Thermocouple Error The High Temp Thermocouple is open. Check wiring.
Ignite Key Stuck The Ignite Key was held for more than
30s while in manual mode.
Check for mechanical failure of the key.
Key Stuck Error / xxxx One of the keypad keys was stuck at
System Startup. The particular key stuck
will be displayed in place of xxxx and will
be one of the following:
DOWN, IGN, MAIN, MODE, OK, PLT,
MENU, STOP, UP
This may indicate a defective keypad. This error must
be resolved in order to continue using the system.
Level Input The Level Contact is open and “Level
Event Restart” is set to “Off”. This error
can also be triggered by the 4-20 Input
Card if the Level reading is below the
4-20 Level Low Setpoint and “Level
Event Restart” is set to “Off”.
Verify proper settings and check for issues outside the
system.
Low Pressure The Low Pressure Contact is open and
“Auto Restart” is set to “Off”. This error
can also be triggered by the 4-20 Input
Card if the Pressure reading is below the
4-20 Pressure Low Setpoint and “Auto
Restart” is set to “Off”.
Verify proper settings and check for issues outside the
system.
Low Voltage xx.x Volts The system voltage remained below the
Low Voltage Alarm point for 20s or more
and “Auto Restart” is set to “Off”. “xx.x”
is the voltage reading at the point in
time when the shutdown occurred.
Verify proper settings and check for issues outside the
system.
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