MEDB765FW0 Dryer Not Heating — Heating Element Replacement & Diagnostic Guide
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Understanding the Problem
Many MEDB765FW0 complaints are "dryer runs but doesn't heat" or "takes forever to dry." The most common culprit is the heating element assembly, but safety devices (thermal fuse, high-limit thermostat), cycling thermostat, power supply, and even a clogged vent can cause the same symptoms. Below are practical diagnostic and repair steps focused on the heating element and the parts you should check first. 1) Safety & prep a. Unplug the dryer from the wall (or switch off the breaker for the dryer circuit). This model is an electric dryer — ensure both 120V legs (240V) are dead before working. b. Pull the dryer away from the wall so you can access the back panel and the vent. c. Have a multimeter (voltage and continuity), nut drivers or screwdrivers (usually 1/4" and Phillips), needle-nose pliers, and a replacement heating element assembly ready. 2) Quick checks (before disassembly) a. Check the vent: disconnect the exhaust duct and run the dryer on a heat cycle for a minute — if it heats normally with the vent off, clean or replace the vent. b. Check house supply: with the dryer plugged in, measure at the terminal block (carefully) for ~240V between the two hot terminals. If you do not have 240V, the problem is household wiring or the breaker. 3) Check thermal fuse and thermostats (cheap and common failures) a. Remove the back access panel (usually 4–6 screws). b. Locate the thermal fuse on the dryer housing near the heater duct and the cycling/high-limit thermostats on the heater assembly. c. Disconnect the wires and test continuity with the multimeter. An open (OL) thermal fuse or thermostat means replacement is required; these will prevent the heater from powering. 4) Inspect and test the heating element assembly a. With the back panel off, visually inspect the heater housing and coil for broken coils, burn marks, or melted insulation. b. Disconnect the wires on the heating element and measure continuity across the element terminals. A working element shows low resistance (a few ohms). An open reading means the element has failed and needs replacement. 5) Remove and replace the heating element (general MEDB765FW0 steps) a. Unplug dryer again. b. Remove the rear access panel. c. Label and photograph wire connections, then disconnect wires from the heating element, thermal fuse, and thermostats attached to the assembly. d. Remove screws/clips that secure the heating element housing to the cabinet and slide the element assembly out. e. Install the new heating element assembly in the reverse order, reconnect wires exactly as documented, reattach the back panel and vent, then restore power and run a test cycle. 6) After repair checks a. Test for heat and listen/observe for normal operation. b. Check that the dryer no longer trips breakers and that dry times return to normal. c. If a new heating element fails quickly or the thermal fuse opens again, check for restricted airflow (lint build-up), a failing blower wheel, or a shorted element that is touching the housing. Safety note: Always disconnect power before testing continuity or touching terminals. If you must test live voltage, use extreme caution or have an electrician do the measurement.
Common Symptoms
Dryer tumbles but produces no heat, low or intermittent heat, longer-than-normal drying times, dryer trips the breaker when heater kicks on, or visible broken heating coil.
Common Causes
- Open heating element coil or broken heating element assembly
- Blown/failed thermal fuse or high-limit thermostat (safety cut-out)
- Restricted venting or clogged lint screen causing overheating and fuse failure
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Helpful Repair Tip
Before removing the heater, test the thermal fuse and the heating element with a multimeter. If the thermal fuse is open, replace it at the same time — a bad thermal fuse often accompanies a failed element and is inexpensive to replace.
Frequently Asked Questions
How can I tell if the heating element is bad?
Unplug the dryer, access the heating element, and test continuity across the element terminals with a multimeter. A good element will show low resistance (a few ohms). An open circuit (OL) means the element is broken and must be replaced. You can also look for visible breaks, burn spots, or sagging coils.
Can I replace the heating element myself and what should I watch out for?
Yes—if you are comfortable with basic disassembly, labels for wires, and safe electrical practices. Always unplug power first, photograph wiring before you disconnect anything, replace the thermal fuse if it’s open, and make sure the venting is clear (restricted airflow causes repeat failures). If you’re not confident measuring live voltage or working inside the cabinet, hire a professional.
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