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Ignition Module
2=:C 699>I>DC6A=:6I >HC::9:9 I=: 8DB7JHI>DC6>G
7ADL:GHI6GIHIDEJG<:6>G;GDBI=:8DB7JHI>DC8=6B
7
:G ;DG 67DJI  H:8DC9H *C EGDD;D;6>G ;ADL I=:
6>GEGDK>C<HL>I8=8ADH:H6C9I=:><C>I:G>H:C:G<>O:9
/D:CHJG:H6;:DE:G6I>DCI=:<6HK6AK:86CCDIDE:C
JCI>AI=:><C>I:G>HK:G>;>:9/=:B6>C7JGC:G>H6JIDB6I
>86AANA>IL=:CI=:9:K>8:>HEDL:G:96C9EG:EJG<:9
/=:=:6I:GE:G;DGBH>IHDLCH6;:IN8=:8@6C9DE:CH
I=: B6>C K6AK:DCAN 6;I:GI=: ><C>I:G>H EGDK:C ID7:
86E67A:D;><C>I>DC
/=:HI6C96G9><C>I>DCBD9JA:L>AA6II:BEIIDA><=II=G::
I>B:H7:;DG:AD8@>C<DJI/DG:H:I>IIJGCD;;EDL:GID
I=:=:6I:GL6>IH:8DC9H6C9G:6EEANEDL:G/=:
DEI>DC6A H>C<A:IGN ><C>I>DC BD9JA: L>AA AD8@ DJI 6;I:G
;6>A>C<IDA><=IDC:I>B:/DG:H:I>IEG:HH6C9G:A:6H:
I=:HB6AAG:8:HH:97A68@EJH=7JIIDCAD86I:9>CH>9:D;
I=:8JIDJIDCI=:ADL:GG><=I=6C98DGC:GD;I=:><C>
I>DCBD9JA:86H:/JGC>C<D;;I=:EDL:GIDI=:=:6I:G
2$'')*/G:H:II=:><C>I>DCBD9JA:
Code Condition
On
System OK;
No faults present
Off
Possible control fault;
Check power
1 Flash
Low air pressure, brief flash-
ing normal on start-up
2 Flashes
Flame in combustion
chamber; No call for heat
3 Flashes Ignition lockout
4 Flashes Low igniter current
5 Flashes
Low 24VAC, check control
supply voltage
6 Flashes
Internal fault;
Replace control
Fig. 29: Ignition Module
Table Q: Ignition Module
Diagnostic LED Codes

 /=: HI6<: ' DC I=: HI6IJH9>HEA6N 7D6G9 >H
C
DL>AAJB>C6I:9
 /=: 8D>A D; G:A6N & >H CDL :C:G<>O:9 L>I= I=:
)*8DCI68IH8ADH>C<9DLCHIG:6BD;I=:HI6<:
8
DCC:8I>DCH
 /=:<6H8DB>C<I=GDJ<=I=:7JGC:GHH=DJA9><C>I:
;GDB I=: =:6I D; I=: =DI HJG;68: ><C>I:G 6C9 I=:
;A6B: H=DJA9 86GGN DK:G ;GDB DC: 7JGC:G ID I=:
DI=:G 7JGC:GH D; HI6<:  /=: G:BDI: H:CHDG >H
CDLIGN>C<IDH:CH:I=:;A6B:$;I=:;A6B:>HCDI
H:CH:9L>I=>CH:8DC9HI=:><C>I>DCBD9JA:L>AA
H=JI9DLC<6HK6AK:6C9G:IGNI=:=DIHJG;68:
><C>I:GJG>C<><C>I>DCG:IGN I=:=:6I:GBJHIE:G
;DGB6H:8DC9EG:EJG<:6C96C6EEGDM>B6I:AN
H:8DC9 ><C>I:G L6GBJE 7:;DG: DE:C>C< <6H
K6AK:  6<6>C/=: HI6C96G9><C>I>DC BD9JA:L>AA
6II:BEI><C>I>DC6B6M>BJBD;I=G::I>B:HEG>DGID
><C>I>DCAD8@DJI
 $; I=: ><C>I>DC BD9JA: AD8@H DJI 6 H><C6A L>AA 7:
H:CIIDI=:0C>K:GH6A>6<CDHI>8HD6G9ID>C9>86I:
6C><C>I>DC;6JAI
 (D9:AHDCAN1>HCDLL6>I>C<
6IE>CD;I=:HI6<:8DCC:8I>DCHDCI=:+2
7D6G9
 (D9:AHDCAN2=:CEDL:G>HH:CIID
<6HK6AK:>I>H6AHDH:CIIDI>B:9:A6NG:A6N/
L=>8=HI6GIH6H:8DC98DJCI9DLC
 (D9:AH  DCAN ;I:G I=: H:8DC9
8DJCI9DLC;GDB/1>HL6>I>C<6IE>C
D;I=:HI6<:8DCC:8I>DCHDCI=:+27D6G9
 ;I:G8ADHJG:D;I=:HI6<:8DCI68IH"6HK6AK:
>H:C:G<>O:9
 /=: HI6<: ' DC I=: HI6IJH9>HEA6N 7D6G9 >H
CDL>AAJB>C6I:9
 /=:#:6I:G>HCDLDE:G6I>C<6I;JAA;>G: