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If the IFC is signaling lock out: The
board should be unlocked to
reinitiate a pilot flame ignition (for
the correct unlock sequence refer
to the IFC Use and Installation
Instructions).
Is the IFC board in
lockout?
1.
Verify the electrical connections’ integrity and
make sure they are in accordance with the relevant
system wiring diagram. If necessary, replace the
wire harness.
2.
Replace the IFC board.
Was spark observed
at the Pilot Hood
before the IFC board
locked out?
1.
Check the spark electrode positioning - adjust
as necessary.
2.
Replace the pilot assembly.
3.
Verify the electrical connections’ integrity and
make sure they are in accordance with the
relevant system wiring diagram. If necessary,
replace the wire harness.
4.
Replace the IFC board.
1.
Verify the electrical connections’ integrity and
make sure they are in accordance with the
relevant system wiring diagram. If necessary,
replace the wire harness.
2.
If pilot flow adjuster screw is not sealed,
check if pilot flow adjust screw is set correctly in
accordance with the appliance manufacturer
instructions. If necessary, correct it.
3.
Replace pilot tube or complete pilot
assembly.
4.
Replace the pilot orifice with a new orifice of
correct size and type or replace the pilot assembly.
Under all circumstances follow the appliance
manufacturer’s service instructions.
5.
Remove the provided wiring harnesses from
Ev1 of gas valve (red base), and verify voltage at
ignition between the Ev1 terminal and the ground
connection on the valve body. If the voltage is
greater than 0 then Replace Valve. Otherwise
replace IFC.
Spark continues
while the pilot is ON.
2
1.
Replace the pilot assembly.
2.
Replace the IFC board.
NO
NO
YES
NO
YES
YES
YES
NO
CONTROL SYSTEM TROUbLESHOOTING
