Maytag Dryer Not Heating — Electric and Gas Diagnosis (MED/MGD Series)

Common Symptoms

• Drum tumbles normally but clothes come out wet after a full cycle
• No heat felt inside the drum — cold air only
• Takes 2–3 cycles to dry a single load
• Gas dryer: can hear the igniter clicking or see it glow faintly but no flame ignites
• Electric dryer: display shows dryness level advancing but clothes are still wet
• Burning smell (could be lint on element) or no smell at all
• Drum light illuminates (confirms power to drum circuit) but heat circuit is dead

Most Likely Causes

1. 1

   Blown Thermal Fuse (WP3392519) — Electric and Gas Models

   The thermal fuse WP3392519 is the first thing to test on any Maytag dryer with no heat. It's a one-time safety device that opens (blows) when the dryer exhaust temperature exceeds approximately 196°F — almost always caused by a clogged lint duct. It will test OL (open circuit, no continuity) on a multimeter when blown. This part number is shared across Whirlpool and Maytag — it mounts on the exhaust duct near the heating element or at the back of the blower housing depending on the model. Replacing the fuse without clearing the duct restriction will blow the new fuse within a few cycles.

2. 2

   Failed Heating Element (WP35001247) — Electric Models Only

   Electric Maytag models use a coiled resistance heating element (WP35001247). The element can partially or fully break open — partial breaks reduce heat output (clothes take multiple cycles), full breaks mean no heat. Test with a multimeter in resistance mode: a functional element reads approximately 10–20 ohms, not OL. The element is inside the drum housing, accessed from the front or back depending on the model. Visible break or burn marks in the coil confirm failure. Always check the thermal fuse first — a blown fuse mimics a failed element symptom-wise and is a $10 fix vs. a $40–$70 element.

3. 3

   Hi-Limit Thermostat (WP3977767) or Cycling Thermostat (WP3387134) Failure

   The hi-limit thermostat WP3977767 is a manual-reset or auto-reset safety device mounted near the heating element — it opens if the element housing overheats. The cycling thermostat WP3387134 cycles the heating element on and off to maintain drum temperature. On older Maytag models, the hi-limit thermostat and thermal fuse are mounted together on the same bracket near the element housing — both can fail or one failure causes the other. Test each with a multimeter for continuity. The cycling thermostat should read continuity at room temperature; the hi-limit should also read continuity unless it has tripped. If the hi-limit has tripped but the dryer shows no airflow restriction, the element itself may be failing and running excessively hot.

4. 4

   Gas Igniter Failure (WP279311) — Gas Models

   The gas igniter WP279311 is a silicon carbide or silicon nitride element that glows orange-hot to ignite the gas burner. Symptom: you can see the igniter glow through the burner housing sight port, but no flame appears — this means the igniter is working but something is preventing gas flow (see radiant sensor). Alternatively, the igniter doesn't glow at all — test resistance with a multimeter: a functional igniter reads 50–200 ohms. OL means the element has cracked. Handle by the ceramic insulator body only — skin oils cause thermal stress cracks.

5. 5

   Radiant Sensor / Flame Sensor (WP279834) Failure — Gas Models

   The radiant sensor WP279834 monitors the igniter heat output and opens the gas valve coils once the igniter reaches operating temperature. A failed radiant sensor keeps the gas valve coils closed — the igniter glows but gas never flows, so there's no flame. The radiant sensor must be tested cold: at room temperature, it should read continuity (closed). If it reads OL at room temperature, it has failed open — gas valve coils will never receive the signal to open. The WP279834 kit often includes the radiant sensor and the gas valve coil assembly together — replacing both at once is the recommended approach since these failures often occur together on high-cycle machines.

6. 6

   Duct Restriction — Bravos XL Top-Venting Check

   Maytag Bravos XL models (MGD6230HW, MGD6630HW, and similar) vent from the top of the unit rather than the rear. The duct exits through the top cabinet panel. If the dryer has been pushed back against the wall after service, the top vent duct can be crushed flat — blocking all airflow and causing the thermal fuse to blow repeatedly. Pull the dryer forward, look at the top duct connection, and confirm it is not kinked, crushed, or bent. On rear-vent models, pull the dryer out and inspect the transition duct between the dryer exhaust port and the wall duct for kinks, bird nests, or lint accumulation.

Quick DIY Checks

1. 1Confirm power to the drum and isolate to the heat circuit: Maytag includes an interior drum light on many MED/MGD models. Open the door — if the drum light illuminates, power is reaching the drum circuit and the issue is in the heat circuit specifically, not a power supply problem. For electric models, confirm both 120V legs are present at the dryer outlet using a multimeter set to AC voltage — measure between each hot slot and neutral (should read approximately 120V each), and between the two hot slots (should read approximately 240V). A missing 120V leg means a tripped breaker or a burned dryer cord terminal. For gas models, confirm the gas shutoff valve at the wall is fully open.
2. 2Unplug the dryer, then test the thermal fuse WP3392519 first: the thermal fuse is typically located on the exhaust duct inside the back panel or on the blower housing. On Maytag MED/MGD models, remove the 2–4 screws on the back panel to access it. Disconnect both wires from the thermal fuse and test for continuity — a blown fuse reads OL with no continuity. If OL, replace the fuse. Before reinstalling: clear the entire vent duct from the dryer exhaust port to the outside wall cap. Use a dryer vent brush kit — remove all lint accumulation. Install the new fuse, reconnect the duct, and run a test cycle. If the new fuse blows again within a few cycles, the duct restriction is still present.
3. 3Electric models — heating element test (WP35001247): with the dryer unplugged, access the heating element housing. On most Maytag front-load-style (front-access) electric models, remove the lower front panel and the lint screen housing to access the element housing at the bottom of the drum housing. On rear-access models, remove the back panel. Disconnect the two wires from the element terminals. Test resistance across the element terminals — should read 10–20 ohms. OL means the element is broken open — replace it. Visually inspect the coil for a visible break or arc mark. Also visually inspect the element housing for lint accumulation — a lint-coated housing is a fire hazard and the cause of the original thermal fuse failure.

1. 4Hi-limit thermostat and cycling thermostat test (WP3977767 and WP3387134): these mount near the heating element housing (hi-limit) and on the exhaust duct (cycling thermostat). Both test with a multimeter in continuity mode. Disconnect one wire from each and test across the terminals. Both should read continuity (closed) at room temperature. On older Maytag models where the hi-limit and thermal fuse are on the same bracket, remove the bracket completely and test both components — if one has failed, replace both since they share the same mounting and failure mode. If either reads OL at room temperature, replace it. Do not bypass thermostats with jumper wires — bypassing causes uncontrolled overheating.
2. 5Gas igniter and radiant sensor test (WP279311 and WP279834): unplug the dryer and shut off the gas supply valve at the wall. Access the burner assembly — on most Maytag front-load gas models, remove the lower front panel and lint screen housing. The igniter is mounted on the burner tube with one screw and two wire leads. Disconnect the igniter wires and test resistance — functional igniters read 50–200 ohms; OL means cracked, replace it. For the radiant sensor WP279834, remove the single mounting screw and disconnect the two-wire harness. Test continuity at room temperature — should be closed (continuity). OL at room temperature means the sensor has failed open and gas valve coils will not receive the trigger signal. Replace radiant sensor and consider replacing the gas valve coil kit at the same time.
3. 6Bravos XL top-vent duct check and full duct clearance: pull the dryer completely away from the wall. On Bravos XL top-vent models, look at the top of the cabinet — the exhaust duct exits through the top panel and bends into the wall duct. Confirm this duct is not crushed, kinked, or collapsed. On rear-vent models, disconnect the flexible transition duct from the wall and dryer ports. Reach into the wall duct and check for lint accumulation. Use a dryer vent brush kit (flexible rod sections) to clear the full run from dryer to outside vent cap. Verify the outside vent cap flap opens freely. Measure exhaust duct airflow on the test cycle by holding your hand near the outside vent — you should feel strong, steady airflow. Restricted airflow = future thermal fuse failures.

Repair vs Replace

Recommended Tools & Parts

• Maytag/Whirlpool Thermal Fuse (WP3392519)

  Replacement thermal fuse for Maytag MED and MGD series dryers (also Whirlpool — identical part). WP3392519 is the most commonly replaced dryer part across both brands. One-time device — always replace with new when testing shows it blown. Fix the vent duct restriction before replacing or the new fuse will blow again within cycles.

  $8–$15

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• Maytag Electric Heating Element (WP35001247)

  Replacement heating element for Maytag MED electric dryers. WP35001247 fits MED5630HW, MED6230HW, and related models. Coiled resistance element — tests 10–20 ohms when functional, OL when broken. Replace if the coil is broken open or arc-marked. Includes element housing on some kits.

  $35–$70

  Buy on Amazon →

• Maytag Gas Dryer Igniter (WP279311)

  Replacement igniter for Maytag MGD gas dryers. WP279311 is the common Maytag/Whirlpool gas igniter. Handle by the ceramic body only — never touch the silicon carbide element. Resistance should read 50–200 ohms; OL means replace. Fixes no-heat gas dryers where the igniter doesn't glow.

  $20–$40

  Buy on Amazon →

• Maytag Gas Dryer Radiant Sensor / Valve Coil Kit (WP279834)

  Replacement radiant flame sensor and gas valve coil kit for Maytag MGD gas dryers. WP279834 covers the radiant sensor assembly. The kit includes the radiant sensor and gas valve coils — replace both together when gas models ignite but fail to sustain a flame. Fixes no-heat caused by gas valve coils not opening.

  $25–$55

  Buy on Amazon →

Links are Amazon affiliate links (tag: fixitfastai-20). Prices are estimates.

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