Nordyne Gas Furnace: GL1RC Re: Lockout Codes Red Light Status Description On Power On 1 Limit Circuit Open 2 Pressure Switch Stuck Open 3 Pressure Switch Stuck Closed 4 Ignition Failure 5 Reversed Polarity Continuous Flame Detected...

Nordyne Gas Furnace: GL1RC Re: Flashing Code 2 If, after the vent blower is energized, the pressure switch does not close, the control will keep the blower on and wait for the switch to close. The diagnostic code for this problem is 2 short red flashes followed by a pause. ► The diagnostic code...