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Speed-queen Dryer Error Codes

All Speed-queen dryer error codes with step-by-step troubleshooting, multimeter specs, and OEM part numbers.

7 error codes

CodeMeaning
ER-ROThe dryer's airflow monitoring circuit detected insufficient exhaust air movement, indicating the exhaust path is blocked or restricted
moderatebeginner
HUBA reference for all Speed Queen dryer fault codes - LCD text codes on newer models with displays, and LED blink patterns on older units without them. Covers the core fault types across residential and commercial models: airflow restrictions, temperature sensor failures, and door switch faults.
lowbeginner
N5The NTC thermistor on the exhaust duct is sending a signal outside the valid range. Either it's shorted (reads zero ohms, control board thinks it's at max temp), open (reads OL, board sees no sensor at all), or the wiring to it broke somewhere along the run. Either way the board can't regulate heat and shuts the whole thing down.
moderateintermediate
NOISECommercial Bearing, Belt, and Blower Sounds
moderateintermediate
NOT-HEATINGWhen a Speed Queen dryer stops heating, the heat circuit has either been cut by a safety device like the thermal fuse, or a core heating component has physically failed. The thermal fuse is a one-use device that sacrifices itself to prevent a fire when temps spike too high. Once it's blown, it won't reset. You have to replace it.
moderateintermediate
NOT-SPINNINGWhen the drive belt breaks or loses tension, a spring-loaded belt switch opens and cuts power to the motor circuit. The drum physically can't turn without the belt looped around it and over the idler pulley. No belt tension, no motor power. That's the whole system in a nutshell.
moderateintermediate
RESETA procedure to clear stored fault codes from the control board and restore the dryer to normal operation. Works for transient codes caused by power blips or one-time sensor spikes, but won't fix codes caused by actual broken hardware.
lowbeginner