HTP EL-399 - Manual (Page 71)

71
LP- 293 REV. 5.20.14
Fault Code F20
CONDENSATE FULL F20
PUMP ON
The condensate trap is full. The red light will
display and the word LOCKOUT will flash. This
code indicates a serious safety issue. The boiler
will not restart until the cause is determined by a
technician and he pushes the RESET button on
the display. During this lockout fault, the pump will
be off as indicated on the second line of the
display. 1. Check condensate lines for obstructions.
2. Check float switch in condensate reservoir.
3. Check wiring from condensate reservoir to 926
control and repair as necessary.
Fault Code F31
PROGRAM ERROR F31
There was an error while programming the control
and the memory is corrupt. The boiler control will
not function in this state and the pump will be off
as indicated on the bottom line. This error only
occurs if a technician is programming the control
and the programming function fails. The only way
to recover from this error is to reprogram the
control. If this error occurs at any time other than
when a technician is servicing the boiler, the
control has failed and must be replaced by a
qualified technician The control must be re-programmed. If pro-
gramming does not solve problem, the control must
be replaced.
Fault Code PP
CONTROL PROGRAMED PP
The control has been programmed by a
technician or the factory. After programming, the
control is left in a locked out mode. Press the
RESET key for at least 1 second to begin use of
the control.
Fault Code FOU
OUTDOOR SENSOR FOU
PUMP ON 1:45P
There is an issue with the outdoor sensor. It is
shorted, damaged, or disconnected from the
boiler.
1. Check outdoor sensor connections and wiring.
Ensure the sensor and wiring are intact and that
the sensor is connected to the boiler.
2. Check the outdoor sensor resistance with an
ohmmeter. See Table 28 for correct outdoor sensor
resistance.
3. Replace the outdoor sensor.
NOTE: If an outdoor sensor IS NOT used in the installation, enter the System Setting Program Navigation, go to Function 21, and turn the setting from
ON to OFF.
The following blocking codes will block operation until the control determines the situation safe for boiler operation.
Blocking Code E07
FLUE TEMP HIGH E07
PUMP OFF TIME
This display indicates that the flue sensor tem-
perature is excessive and above 210
o F. When
this code is displayed, the boiler will not respond
to a demand for heat. When the flue temperature
decreases below 194
o F, the display will return to
normal and allow the boiler to respond to a heat
demand. The bottom line indicates the status of
the pump. The pump will remain off when this
error is displayed.
Check the flue for obstructions or any sign of
damage, especially signs of excessive heat. Repair
as necessary. Run the boiler and check the flue
temperature with an external thermometer. If the
flue temperature on the thermometer does not
agree with the flue temperature displayed in the
status menu, inspect the wiring to the flue
temperature sensor in the boiler and repair as
necessary. If the wiring is intact, replace the flue
sensor. If the flue temperature is excessive on the
status menu and the test thermometer reads the
same, check and adjust combustion controls on the
boiler. If the problem persists, inspect the target
wall in the combustion chamber and replace it if
cracked or damaged.
Blocking Code E19
LINE VOLTAGE
PUMP OFF E19
This display indicates that the line voltage fre-
quency is out of range. This could happen if the
boiler is being powered from a small gasoline
powered generator that is not functioning correctly
or overloaded.
Inspect power wiring to boiler and repair as nec-
essary. If connected to line voltage, notify the
power company. If connected to an alternate power
source such as generator or inverter, make sure
the line voltage frequency supplied by the device is
60 Hz.
Table 27 – Fault and Blocking Code Screens