1. Clogged vent → tripped thermal cutoff (most common root cause)
What it is: 60% of Maytag 'no heat' calls trace back to a restricted vent that overheated and opened the one-shot thermal cutoff. The dryer still tumbles but never gets hot. Replacing the cutoff without clearing the vent burns out a new one in weeks.
Fix: Clear the full vent run, replace OEM cutoff + high-limit kit, verify temp rise to 135°F+.
Typical all-in: $215–$345 all-in
2. Failed heating element (electric MED)
What it is: The 240V coil burns open at the porcelain insulator. Tests open on a multimeter. Common at year 5–9 on hard-running MED / Bravos units.
Fix: Replace OEM heating element + cutoff + high-limit as a service kit (Whirlpool/Maytag SB), inspect blower wheel.
Typical all-in: $245–$385 all-in
3. Failed gas valve coils (gas MGD)
What it is: Igniter glows but the gas valve never opens or drops out — the dual coils on top of the gas valve have failed. Symptom: 60-second glow, then cool tumble.
Fix: Replace OEM coil kit, verify ignition and flame sustain.
Typical all-in: $245–$365 all-in
4. Worn / open igniter (gas MGD)
What it is: Silicon-carbide igniter fractured — no glow, no ignition.
Fix: Replace OEM igniter, verify glow and burn.
Typical all-in: $215–$315 all-in
5. Thermistor or control board heat-relay failure
What it is: Thermistor shorted / opened, or the board's heat relay welded. Less common; confirmed by diagnostic mode reading.
Fix: Run Maytag service mode, replace OEM thermistor or main board.
Typical all-in: $245–$425 all-in