Dexter Error Code NO-HEAT — Igniter

Service Guy AI • Dryer • Medium severity • Intermediate skill • ~30 min repair

What Does Dexter Error Code NO-HEAT Mean?

Dexter dryer: Igniter

This is a medium-severity fault. The machine may complete the current cycle but is signalling a problem you should resolve before it escalates.

Possible Causes (5)

Dexter engineers identify the following root causes for fault code NO-HEAT. Work through them in the order shown — they are listed from most common to least common.

1. Faulty igniter
2. Defective control board
3. Blocked venting system
4. Thermal fuse blown
5. Gas supply issue

Step-by-Step Troubleshooting (6 steps)

Follow this sequence to diagnose and clear Dexter error code NO-HEAT. Power down and unplug the machine before any internal inspection.

1. Disconnect power before servicing.
2. Inspect the igniter for cracks or damage.
3. Check the control board for any visible signs of failure.
4. Ensure the venting system is clear of obstructions.
5. Test the thermal fuse for continuity.
6. Verify that the gas supply is turned on and functioning.

Required Parts

Have these Dexter OEM part numbers ready before starting the repair. AAdvantage Laundry Systems carries verified parts for every code in this database.

• Igniter
• Control Board
• Thermocouple
• Venting Assembly

Diagnostic Test Mode

Enter Dexter diagnostic test mode: Hold 'Medium + Start' for 5 seconds

Skill Level & Repair Time

This repair is appropriate for an experienced laundromat owner or in-house technician. You should be comfortable removing service panels, reading wiring diagrams, and using a multimeter to test continuity and voltage. Plan for approximately 30 minutes of active repair time once parts are on hand.

Get AI-Powered Diagnosis

If the steps above don't resolve Dexter NO-HEAT, run a free Service Guy AI diagnosis. Upload a photo of the error display and get an AI-generated repair plan tied to your exact Dexter model number, including supplier links for required parts and on-call technician escalation.

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