Intertek FT Series - Page 77

The FT Series Floor Standing, Heating Only Boiler
Page 77
Fault Condition Diagnostic Corrective Action(s)
TEMPERATURE
SENSOR
Occurs when
a temperature
sensor has
electrically
shorted
(SHORT) or has
become
disconnected
(OPEN).
Reset using manual
reset screen on control
panel. (Power button)
Check all the temperature readings
of the boiler on the DIAGNOSTICS -
TEMPERATURES menu to determine if any
sensors are currently displayed as SHORT or
OPEN.
Check wire harness for loose connections and
pin engagement at sensor Connection and
Control module.
If problem persists after checking items above
replace Control. Refer to repair parts section
for kit number.
FLAME FAULT
Occurs when
ame is
detected when
there should be
no ame.
Reset using manual
reset screen on control
panel.
(Power button)
Burner may be operating too hot due to
incorrect combustion. Inspect ame and
conduct combustion test.
Check for ame at burner via ame current
with burner o󰀨. Turn boiler o󰀨 and watch
ame through observation port. If ame
continues after shutdown replace gas valve.
BLOWER FAULT
Blower unable to
reach required
speed or does
not reach 0
RPM when
turned o󰀨.
Reset using manual
reset screen on control
panel.
(Power button)
Check wire harness for loose connections and
pin engagement at blower.
Connections.
Boiler in standby mode and blower not
running. If BLOWER SPEED is not 0 RPM
then replace blower.
If blower does not rotate during ignition
sequence check for 120V power at blower
connection. If 120Vac power at blower motor
and it doesn't start replace blower. Check
power at Control. If 120Vac is not present
at Control when boiler is powered replace
Control.
IGNITION
FAULT
Even if boiler
went through
8 ignition
attempts, but
cannot detect
ame
Power o󰀨 and on.
Dirty burner and/or heat exchanger will cause
high back pressure and poor ignition.
Visual inspection of ue ways often will not be
able to diagnose condition.
Check incoming gas pressure with boiler o󰀨
and at Max re. Adjust within limits on rating
label.
Check for ue pipe and intake pipe restrictions
or blockage
Check burner fasteners and gaskets
Check air intake pipe and proper propane
orice
GAS VALVE
FAULT
The Control
has detected a
problem with it
gas valve
output circuit.
Reset using manual
reset screen on control
panel.
(Power button)
Check wire harness connections between gas
valve and Control.
If lockout re-occurs replace Control.
7.2 Suggested Corrective Actions (continued)