HTP EL-80 - Page 57

LP-293 Rev. 9.24.15
57
NO FLAME ON IGN F09
PUMP ON
The boiler tried to ignite four times during
one heat call and failed. This is a serious
safety issue as indicated by the illuminated
red light and the word LOCKOUT ashing on
the display. The boiler will not restart until a
technician determines and repairs the cause
of ignition failure and pushes RESET on the
display. During this lockout fault, the pump
will remain on.
1. Watch the igniter through the observation window.
2. If there is no spark, check the spark electrode for the
proper .196” (5.0 mm ± 1mm) gap. See below.
3. Remove any corrosion from the spark electrode and
ame rectier probe.
4. If there is a spark but no ame, check the gas supply to
the boiler.
5. If there is a ame, check the ame sensor.
6. Check any ue blockage or condensate blocks.
FLAME LOSS F10
PUMP ON
The ame was lost 3 times while the boiler
was ring during 1 demand call. This is a
serious safety issue as indicated by the
illuminated red light and the word LOCKOUT
ashing on the display. The boiler will not
restart until a technician determines and
repairs the cause of ame loss and pushes
RESET on the display. During this lockout
fault, the pump will be on.
1. Monitor gas pressure to the unit while in operation.
2. Assure the ame is stable when lit.
3. Check if the display readout changes from “GAS VALVE
ON” to “RUN” within a few seconds of boiler ignites.
4. Check the FLAME signal on the display. It should be
above 1.0 when the boiler is ring.
5. If the signal reads less than 1 microampere, clean the
ame rectier and spark probe.
6. If the problem persists and the ‘FLAME” signal is still
less than 1.0, replace the ame probe and spark igniter
probe.
7. The ame signal should be steady after the boiler has
been ring for 1 minute and is normally at 5.0 to 9.0. If the
ame signal is not steady, disassemble the burner door
and check the burner and its sealing gaskets.
FALSE FLAME SIG F11
PUMP ON
There is ame when the control is not telling
the boiler to run. This is a serious safety issue
as indicated by the illuminated red light and
the word LOCKOUT ashing on the display.
The boiler will not restart until a technician
determines and repairs the cause and pushes
RESET on the display. During this lockout
fault, the pump will be on.
1. Look into window. If there is ame, turn the gas o to
the unit at the service valve and replace the gas valve.
2. If the ame signal on the status menu is greater than
1.0 when the burner is not lit, replace the spark ignitor and
the ame rectication probe.
3. If the ame signal is not present after turning o the gas
supply, check the gas valve electrical connection.
4. Check for condensate backup. Repair condensate
system as necessary. If condensate has partially lled
the combustion chamber, the refractory wall may be
damaged and should be replaced.
5. Turn the gas on at the service valve after corrective
action is taken.
6. If the refractory wall falls against the rectier probe, it
may conduct the signal to ground, giving a false reading.
FAN SPEED ERROR F13
PUMP ON
The fan is not running at the speed
determined by the control. Fan speed has
been more than 30% faster or slower than
the commanded speed for more than 10
seconds. This is a serious safety issue as
indicated by the illuminated red light and
the word LOCKOUT ashing on the display
.This boiler will not restart until a technician
determines and repairs the cause and pushes
RESET on the display. During this lockout
fault, the pump will be on.
1. Check the combustion fan wiring.
2. Measure DC voltage from the red fan wire to ground
while it is connected to the fan. It should be between 24
and 40 volts. If it is lower than 24 volts, check for excessive
external loads connected to the boiler sensor terminals
3. Disconnect the 5 pin plug from the fan and check the
voltage on the red wire again. If it is now between 24-40
volts, replace the fan. If it is still below 24 volts replace the
boiler control board.