STA-RITE Sr200na, Sr200lp,, Sr333na, Sr333lp,, Sr400na, Sr400lp Owner's Manual page 27

Heater Will Not Fire - D
Start
Gas flows during igni-
tion try, but burner
does not fire.
YES
Check for 120 VAC at
Igniter leads during
ignition try.
NO
Check for 120 VAC
between S1 and S2
terminals on Ignition
Control Module during
ignition try.
NO
Check for 120 VAC
between L1 and L2
terminals on Ignition
Control Module.
YES
Replace Ignition
Control Module.
Go back to chart "HEATER
NO
WILL NOT FIRE-C"
(Page 26).
YES
Check gas pressure? OK?
Fix wiring between S1 and S2
YES
terminals on Ignition Control
Module and HSI Igniter.
Fix wiring between L1 and L2
NO
terminals on Ignition Control
Module and Terminal Board.
YES
NO
27
Replace HSI Igniter.
Replace gas line with larger
line or replace regulator.