HTP PHE199-119 - Manual (Page 61)

61
LP-314 REV. 3.24.14
Fault Code F01
FLUE TEMP F01
PUMP ON
This display indicates that the flue temperature limit
switch of the unit has tripped. This is a serious
safety issue, as indicated by the red fault light and
the word LOCKOUT flashing on the display. The
unit will not restart until the flue cools down
sufficiently and a technician repairs the cause of
the problem and pushes the RESET button on both
the device and the display. During this lockout fault,
the pump will be on as indicated on the second line
of the display. 1. Check the flue for obstructions or any sign of damage
(especially signs of excessive heat). Repair as necessary.
2. Push the red reset button on the flue temperature switch
located on CPVC vent elbow. NOTE: Switch temperature
must be less than 90°F to reset.
3. Press RESET on the display. Run the unit and check the
flue temperature by using an external thermometer in the flue
pipe. If the flue temperature is below 190°F and the switch
trips, replace the switch. If the flue temperature is excessive,
check and adjust the combustion controls on the unit.
Fault Code F02
TOP TEMP SENSOR F02
PUMP ON
This display indicates that the top temperature
sensor of the tank has failed. This code indicates a
serious safety issue by the red fault light and the
word LOCKOUT flashing on the display. The unit
will not restart until a technician replaces the sensor
and resets the unit. During this lockout fault, the
circulator pump will be on as indicated on the
second line of the display. 1. Check the electrical connection to the thermistor on the
outlet manifold. Verify 5 VDC by checking in Molex connector.
If no 5 VDC, check harness. If harness is OK, replace control.
NOTE: Verify thermistor values by referencing chart in this
manual.
2. Replace thermistor if necessary.
Fault Code F03
BOT TEMP SENSOR F03
PUMP ON
This display indicates that the bottom temperature
sensor of the unit has failed. This code indicates a
serious safety issue by the red fault light and the
word LOCKOUT flashing on the display. The unit
will not restart until a technician replaces and resets
the unit. During this lockout fault, the pump will be
on as indicated on the second line of the display. 1. Check the electrical connection to the thermistor. Check
the wire harness. If harness is OK, replace control. NOTE:
Verify thermistor values by referencing chart in this manual.
2. Replace thermistor if necessary.
Fault Code F05
TOP TEMP HIGH F05
PUMP ON
This display indicates the top temperature of the
tank is excessive. If accompanied by the
illuminated red fault light and LOCKOUT flashing
on the display, then this code indicates that the
temperature on the top sensor has exceeded 230
o F
and a serious safety issue exists. The unit will not
restart until a technician repairs the cause of
excessive temperature and resets the unit.
If the red fault light is not illuminated and this
message is displayed, the top temperature of the
tank is at or above 210
o F. The message will clear
automatically when the temperature drops below
194
o F. While this message or lockout fault is
displayed, the pump will be on as indicated on the
bottom line.
1. Check the electrical connection to the thermistor on the
outlet manifold. Verify 5 VDC by checking in Molex connector.
If not 5 VDC, check harness. If harness is OK, replace
control. NOTE: Verify thermistor values by referencing the
resistance table in Part 12.
2. Replace thermistor if necessary.
Fault Code F06
BOT TEMP HIGH F06
PUMP ON
This display indicates that the bottom temperature
of the tank is excessive. If this code is accompa-
nied by the illuminated red fault light and
LOCKOUT flashing on the display, then the
temperature on the bottom sensor has exceeded
230
o F and a serious safety issue exists. The boiler
will not restart until a technician repairs the cause
of the excessive temperature and resets the unit.
If the red fault light is not illuminated and this
message is displayed then the bottom temperature
of the tank is at or above 210
o F. The message will
clear automatically when the temperature drops
below 194
o F. During the time that this message or
lockout fault is displayed, the pump will be on as
indicated on the bottom line of the display.
1. Check the electrical connection to the thermistor on the
outlet manifold. Verify 5 VDC by checking in Molex connector.
If not 5 VDC, check harness. If harness is OK, replace
control. NOTE: Verify thermistor values by referencing chart
in this manual.
2. Replace thermistor if necessary.
Fault Code F09
NO FLAME ON IGN F09
PUMP ON
The unit tried to ignite four times during a call for
heat and failed ignition all four times. This code
indicates a serious safety issue. The unit will not
restart until a technician repairs the cause of no
ignition and resets the display. The red fault light
and word LOCKOUT will flash on the display.
During this lockout fault, the pump will be on as
indicated on the bottom line.
1. Watch the igniter through the observation window.
2. If there is no spark, for natural gas units check the spark
electrode for the proper gap. Use 2 quarters together as a
gauge to check gap spacing.
3. Remove any corrosion from the spark electrode and flame
rectifier probe.
4. If there is a spark but no flame, check the gas supply to the
boiler.
5. If there is a flame, check the flame sensor.
6. Check for any flue blockage or condensate blocks.