Troubleshooting - Heatilator LEGACY42-IFT Owners Manual Care And Operation

C. 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 qualified service technician in the diagnosis of a problem and
the corrective action to be taken. This troubleshooting guide can only be used by a qualified service technician. Contact
your dealer to arrange a service call by a qualified service technician.
IntelliFire™ Touch
Error Codes:
ECM LED Error
Codes
3 Red: 1 Green Appliance Safely Disabled
2 Red: 1 Green Error Pilot Flame
2 Red: 2 Green Sparking Feedback Signal Error
5 Red: 1 Green Error Power Vent
See Troubleshooting matrix for more detail on Lock-out Error Codes, Possible Causes and Corrective Actions.

Troubleshooting:

Symptom
Pilot won't light, module clicks but
no spark 60 sec, 3 Red/1 Green
Lock out.
Pilot won't light, there is no noise
or spark.
Pilot won't light, there is no noise
or spark, 2 Red/1 Green Lockout.
Pilot won't light, there is no noise
or spark, 2 Red/2 Green Lockout.
Display Error Message
Possible Cause
Incorrect wiring.
Loose connections or electrical
shorts in wiring.
Ignitor gap is too large.
No AC power, AC/DC adaptor
faulty, Control Module slider
switch in OFF position.
Shorted or loose connection
in system wiring or wiring
harness.
Poor or no system ground.
Pilot solenoid not detected.
Spark coil failure.
Heatilator • Legacy42-IFT Owner's Manual • 4095-900 Rev. A • 9/17
Description
Pilot sparks for 60 seconds, no flame rectification
Pilot valve solenoid not detected/ground not connected
Spark coil failure
Speed Control failure or High Limit Switch tripped
Corrective Action
Verify 'S' (White) sense wire and 'I' (orange) ignitor wire are
connected to correct terminals on
Verify no loose connections or electrical shorts in wiring from
module to pilot assembly. Verify wire insulation is not dam-
aged. Verify wires are not grounding out to chassis, pilot burn-
er, or any other metal object. Replace any damaged wires.
Verify spark gap is approximately 0.095" (2.41 mm) to 0.135"
(3.43 mm).
Control Module
Verify
position. Verify AC power available to junction box. Verify AC/
DC adaptor is plugged into junction box and Control Module.
Verify AC/DC adaptor output voltage is between 5.7-6.3 Vdc.
Verify system wiring configuration. Remove and reinstall wir-
ing harness that plugs into module. Check continuity of wires
in valve wiring harness. Replace any damaged components.
Verify black ground wire in valve harness is connected to metal
chassis of fireplace.
Check if valve harness orange wire is connected to pilot so-
lenoid 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.
Replace Control Module.
Control Module
.
REMOTE
slider switch is in ON or
19