Blower not running.
1. Turn off power to boiler. Remove line voltage connector at blower. Restart boiler and check voltage across blower plug terminals. If 120 vac is NOT present, inspect wiring and tightness of connections. Replace line voltage wire harness if necessary. Replace control module if wire harness replacement doesn’t resolve.
2. If 120 vac is present on blower wire harness, replace harness and retry. If problem persists, replace blower motor.
