Troubleshooting a SIM or SIM+ module

IBC Part # Description Boiler Model
P-271 SIM+ (Safety Ignition Module) replacement kit

SL 10-85 G3, SL 14-115 G3, SL 20-160 G3, SL 30-199 G3

P-270 SIM (Safety Ignition Module plus) replacement kit

SL 26-260 G3, SL 40-399 G3

This topic provides identification steps as a way of troubleshooting issues related to the SIM and SIM+ modules.