Maytag Dryer Won't Heat: How to Troubleshoot
A Maytag dryer (MED electric or MGD gas) that tumbles but will not heat is almost always one bad part in the heat circuit — most often a blown thermal fuse from a clogged vent. Work through the checks in order with a multimeter and you will find it in 30-60 minutes. Difficulty: intermediate.
Diagnose in order — do not guess#
Maytag dryers do not post an error code for a broken heat part; they just run cold, so a multimeter is essential. Unplug the dryer first (and shut the gas valve on a gas model), then work the checks below from the cheapest and most common down.
Tools and safety#
- Tools: a multimeter (essential), Phillips #2 screwdriver, 5/16-inch nut driver, flashlight
- Time: 30-60 minutes to diagnose · Difficulty: intermediate
- Safety: unplug the dryer before testing anything; on gas models close the supply valve.
Do You Have the Right Tools?
Gas leak detector ($130), thermal fuse tester ($95), belt tension gauge, and vent inspection camera ($180). Our technician arrives with $3,000+ in professional tools — your diagnostic is free.
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The checks#
1. Power#
Electric Maytags need 240V from two breakers (or a double-pole). If one leg is tripped, the motor still runs on 120V but the element gets nothing — reset both breaker handles. On a gas model, confirm the valve behind the dryer is open and the gas is on.
2. Thermal fuse (most common)#
Reach the thermal fuse from the rear panel (electric) or lower front (gas) and check it for continuity: a beep means good, an open reading means blown. A blown fuse means the exhaust vent was restricted — clean the whole vent run before you fit a new fuse, or it will blow again.
3. Heating element (electric MED)#
Disconnect one element wire and meter its resistance: about 8-20 ohms is healthy, infinite means the coil is broken, and continuity from a terminal to the housing means it is grounded — replace it either way.
4. Gas valve coils and igniter (gas MGD)#
Start a heat cycle and watch the burner. No glow at all — meter the igniter (about 50-400 ohms; open means failed). Glows bright but no gas — the gas valve coils have failed (the most common gas-dryer fix). Lights then goes out — an intermittent coil or a flame-sensor issue.
5. Cycling thermostat#
It cycles the heat on and off; at room temperature it should read continuity. Open at room temperature means it has failed and the heat will not come on.
6. High-limit thermostat#
A secondary safety that trips at a higher temperature — also continuity at room temperature. If it is open, it tripped from overheating, which usually rides along with a restricted vent.
7. Timer or control board#
If every heat part tests good, the timer or main board may not be feeding the circuit. Meter for 240V (electric) or 120V (gas valve) at the heater terminals during a heat call; no voltage there points at the board or timer contacts.
Quick decision tree#
| Symptom | Test | Likely cause |
|---|---|---|
| No heat, drum turns (electric) | Thermal fuse continuity | Blown thermal fuse (vent) |
| No heat, a breaker tripped | Element-to-ground | Grounded element |
| No heat, fuses good (electric) | Element resistance | Open element |
| No heat, igniter glows (gas) | Watch the burner | Failed gas valve coils |
| No heat, no glow (gas) | Igniter resistance | Failed igniter |
| Intermittent heat | Cycling thermostat | Failed thermostat |
Safety First — Know the Risks
Gas dryers carry carbon monoxide and explosion risk. Even electric dryers involve 240V circuits that can deliver a fatal shock. Our techs are licensed and insured — let them handle the risk.
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After the fix#
Clean the exhaust vent no matter which part failed, run a timed heat cycle and confirm warm airflow at the exterior vent cap, then run an auto-dry load to confirm the moisture sensing ends correctly. Watch it for two or three loads to be sure it holds.
When to call a professional#
Call a tech if you smell gas after replacing valve coils, if the board is the suspect (an expensive part worth confirming), if the thermal fuse keeps blowing even after a clean vent (a possible wiring fault), or if metering a live 240V circuit is not for you.
Appliance Repair Technician & Diagnostics Specialist · 10 years experience
Electronics and diagnostics specialist with 10 years of experience in modern smart appliance repair, specializing in LG and Samsung.
