Trane CTR1605 Contactor 326070-701 Check for 4-flash hard lockouts

Check for 4-flash hard lockouts or a lack of 24V signal to the X2 terminal

making it a robust interface for burner circuits and alarm systems in commercial applications

it eliminates the "G/V Relay Fail" and "No Flame Ign" codes often caused by brittle or intermittent legacy wiring

Verify the thermopile output is at least 650 millivolts and check the thermal switch for continuity

Trane CTR1605 Contactor 326070-701 Check for 4-flash hard lockoutsThe Trane CTR1605 Contactor is a heavy duty 3 pole normally open contactor featuring 2 SPDT auxiliary contacts, engineered for high demand commercial HVACR applications. As a veteran grade OEM replacement contactor, this component is designed for precise load management in condensing units and industrial motor control systems. The three pole configuration supports balanced three phase power distribution, while the integrated single pole double throw