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3737 3-90-30007498Vermont Castings • Radiance RADVT Installation Manual_R32 • 10/23
M.Troubleshooting
With proper installation, operation, and maintenance your gas appliance will provide years of trouble-free service. If you do
experience a problem, this troubleshooting guide will assist a qualied service technician in the diagnosis of a problem and
the corrective action to be taken. This troubleshooting guide can only be used by a qualied service technician. Contact your
dealer to arrange a service call by a qualied service technician.
IntelliFire™ Touch
Error Codes
ECM LED
Error Codes Description
3 Red: 1 Green IFT-RC400 error message: ‘Appliance Safely Disabled’, pilot sparks for 90 sec, no ame rectication.
2 Red: 1 Green IFT-RC400 display: ‘Error Pilot Flame’, pilot valve solenoid not detected.
2 Red: 2 Green Sparking feedback signal error, spark coil failure.
5 Red: 1 Green IFT-RC400 display: ‘Error Power Vent’ (if installed).
See Troubleshooting matrix for more detail on Lock-out Error Codes, Possible Causes and Corrective Actions.
Troubleshooting:
Symptom PossibleCause Corrective Action
Pilot won’t light, module clicks but no
spark 90 sec, 3 Red/1 Green Lock out.
Incorrect wiring. Verify ‘S’ (White) sense wire and ‘I’ (orange) ignitor wire
are connected to correct terminals on IFT-ECM.
Loose connections or
electrical shorts in wiring.
Verify no loose connections or electrical shorts in wiring
from module to pilot assembly. Verify wire insulation is not
damaged. Verify wires are not grounding out to chassis,
pilot burner, or any other metal object. Replace any
damaged wires.
Ignitor gap is too large. Verify spark gap is approximately 0.095” (2.41 mm) to
0.135” (3.43 mm).
Pilot won’t light, there is no noise or
spark.
No AC power, AC/DC adaptor
faulty, backup batteries (if
being used) depleted, IFT-
ECM slider switch in OFF
position.
Verify IFT-ECM slider switch is in ON or REM position.
Verify AC power available to junction box. Verify AC/DC
adaptor is plugged into junction box and ECM. Verify AC/
DC adaptor output voltage is between 5.7-6.3 Vdc. If
battery pack is used, check battery pack voltage is >4.2 V
(if not, replace batteries).
Shorted or loose connection
in system wiring or wiring
harness.
Verify system wiring conguration. Remove and reinstall
wiring harness that plugs into module. Check continuity
of wires in valve wiring harness. Replace any damaged
components.
Poor or no system ground. Verify black ground wire in valve harness is connected to
metal chassis of replace.
Pilot won’t light, there is no noise or
spark, 2 Red/1 Green Lockout. Pilot solenoid not detected.
Check if valve harness orange wire is connected to pilot
solenoid valve. Check pilot solenoid resistance, nominal
is 40 ohms. If open or shorted, replace valve. Check valve
harness wire continuity, if open replace 6-pin harness.
Pilot won’t light, there is no noise or
spark, 2 Red/2 Green Lockout. Spark coil failure. Replace ECM.
37


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