Whirlpool WED5500BW0 Dryer — Common Problems and How to Fix Them
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Understanding the Problem
This guide covers the most common problems owners see with the Whirlpool WED5500BW0 electric dryer — no power, won't start, no heat, long dry times, lack of tumbling, and loud noises. Below are step-by-step diagnostic and repair procedures you can follow. Always unplug the dryer and shut off power at the breaker before you begin. 1) Dryer won't start (no motor spin/tumble) - Check basic power: Verify the dryer is plugged in and the circuit breaker is not tripped. Electric dryers require a 240V double-pole breaker. Flip the breaker OFF and ON to be sure. - Inspect door switch: Open the door and press the door switch; you should hear a click. Remove the switch and test continuity with a multimeter. No continuity when closed = replace door switch. - Test start switch and pushbuttons: With power off, check the start switch for continuity when pressed; replace if defective. - Check the belt and motor: Manually rotate the drum — if drum spins freely but motor won't run, check the thermal fuse and motor. If drum is stuck, inspect for a broken belt or jam. Remove front panel to visually check and replace the belt if broken. - How to fix: Replace any failed electrical switches or a broken drive belt. If the motor hums but doesn’t run, test motor windings and capacitor (if present); replace motor assembly as needed. 2) Dryer runs but no heat or not enough heat - Confirm venting and airflow: Remove lint screen and vacuum lint from the opening. Disconnect exhaust vent from the back and do a quick test run; if drying improves dramatically, clean or replace the vent. Restricted vents are the most common cause of poor heating. - Check the thermal fuse: On many Whirlpool dryers the thermal fuse (overheat safety) will open with no continuity when blower or vent is restricted. Locate the thermal fuse (on blower housing or exhaust duct), disconnect, and test for continuity with a multimeter. No continuity = replace thermal fuse. - Test the heating element: Remove the back panel and inspect the heating element for visible breaks. Test for continuity across the element coils. If open or grounded to the heater housing, replace the element assembly. - Check thermostats and high-limit thermostat: Test cycling thermostat and high-limit thermostats for continuity. Replace any that are open when they should be closed. - Check 240V supply: Use a voltmeter to verify ~240 VAC across the two hot terminals at the dryer’s terminal block. If you only have ~120V or one leg missing, the heating element will not get full power — call an electrician. - How to fix: Replace any failed thermostats, thermal fuse, or heating element. Replace or clean venting to restore airflow. If the control board is suspected (rare), verify all upstream components first. 3) Dryer tumbles but loud squeal or grinding noise - Likely causes: Worn drum support rollers, worn idler pulley, damaged drum glides/slide pads, or worn bearings on the motor. - Diagnostic steps: Run the dryer empty and listen to locate the sound. Manually rotate drum and feel for roughness on rollers or pulleys. Remove the belt and spin motor shaft by hand to check for bearing noise. - How to fix: Replace worn drum rollers and axles, idler pulley, drum glides, or motor if bearings have failed. Replace the drum belt if it is glazed or frayed. 4) Dryer heats but takes too long to dry - Check lint trap and venting first (clean both). Measure air temperature at the vent — if airflow is weak or vent is hot but damp clothes remain, suspect restricted venting. - Verify proper element and thermostats operation as above. If heating is intermittent, the cycling thermostat or electronic controls may be failing. - How to fix: Clean or replace venting; replace thermal/ cycling thermostats or heating element if tests show failure. 5) Dryer trips breaker or fuses - Shorted heating element or wiring can draw excessive current. Disconnect heating element and test resistance; if element is shorted to ground, replace it. - Motor short or bad start components can also trip breakers. Test motor for shorts to ground and correct resistance. - How to fix: Replace the shorted component and correct any damaged wiring. General step-by-step replacement overview for common parts (thermal fuse, heating element, belt/rollers): - Unplug dryer and shut off power at breaker. - Move dryer away from wall and remove the back or front panel as required (refer to service sheet under dryer console or online manual for panel removal steps). - For thermal fuse: Typically located on blower housing — disconnect wires, remove mounting screw, install new fuse, reconnect wires. - For heating element: Disconnect wires, remove mounting screws and retaining clips, pull out the heater assembly and replace with new assembly; reattach wires and panels. - For belt/rollers: Remove front panel, lift out front bulkhead, remove old belt from drum and motor pulley, replace rollers/idler as needed, loop new belt around drum and motor idler, reassemble. Safety note: Always unplug the dryer and turn off the breaker before working on electrical components. Use a multimeter rated for household voltage. If you're not comfortable working with 240V circuits or disassembling the dryer, hire a certified appliance technician.
Common Symptoms
No power or won't start; tumbles but no heat; takes too long to dry; loud squealing or grinding; trips the breaker.
Common Causes
- Tripped breaker or missing 240V supply
- Clogged lint screen or exhaust vent restricting airflow
- Failed thermal fuse, thermostat, or heating element
- Broken drive belt, worn drum rollers, or failed motor
- Faulty door switch or start switch
Popular Parts That Fix This Problem
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Helpful Repair Tip
Confirm a failed thermal fuse or heating element with a multimeter: thermal fuses and thermostats should show continuity when cold; the heating element should show continuity through the coils and not be grounded to the heater casing.
Frequently Asked Questions
Where do I find the model and serial number to order the correct parts?
The model/serial tag is on the dryer inside the door opening (on the frame) or on the back of the dryer. For WED5500BW0, use that exact model plus the serial to confirm compatible replacement parts on Whirlpool's parts site or major appliance parts suppliers.
Can I replace the thermal fuse or heating element myself?
Yes, these are common DIY repairs if you are comfortable unplugging the dryer and removing panels. Always cut power at the breaker first. Remove the appropriate panel, disconnect wires (take a photo first), swap the part, reconnect wires, and reassemble. If you find missing voltage at the terminal block or are unsure about electrical tests, call a pro.
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