How to Diagnose a Bad Ignitor on a Neptune Dryer

Set your Neptune dryer to a high heat setting and start it. Wait a few minutes and open the dryer. Place your hand inside the drum to determine if you feel any heat inside.

Remove the front bottom panel of the dryer to access the burner assembly. Refer to the owner's manual for your dryer because the process can vary, depending on your particular Neptune dryer model. Set the dryer to a high setting temperature and start it. Look at the burner assembly to see if the ignition glow bar lights up.

Turn the dryer off and disconnect it from its power source. Use a pair of needle-nose pliers to remove the wire connectors from the ignitor in the dryer. Use a multimeter to check the amperage of the ignitor by pressing the probes to the terminals on the ignitor. Depending on which Neptune dryer model you’re working on, the correct reading should be between 50 and 600 ohms. If the reading shows zero or infinity, the ignitor is bad.