Author: ApplianceFixGuide Team

Problem: Diagnostic code: Low voltage detected at control board power supply

How to Fix Dryer Error

1. Disconnect power and remove rear panel to access power cord terminal block.
2. Restore power and measure voltage at terminal block: L1-Neutral=120V, L2-Neutral=120V, L1-L2=240V. Voltage below 105V on either leg triggers d
3. If household voltage low, contact utility company—may indicate neighborhood transformer issue.
4. If voltage correct at terminal block but d9 persists, test voltage at control board power supply input terminals.
5. Inspect control board WPW10111608 for failed filter capacitors on power supply section—bulging/leaking tops indicate failure.
6. Test power supply output voltages if schematic available (typically 5VDC and 12VDC rails)—out of spec indicates board failure.
7. Control board cannot be economically repaired—replace WPW10111608 assembly.
8. Before replacement, verify no short circuits exist downstream that could damage new board: test heating element for ground faults, motor windings for shorts.
9. After installation, measure control board supply voltages to confirm proper operation.
10. Run diagnostic cycle to verify all functions operate correctly at proper voltage levels.

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Problem: Diagnostic code: Motor sensor circuit failure—failed tachometer or Hall effect sensor

How to Fix Dryer Error

1. Enter diagnostic mode and run motor speed test—observe if RPM reading displays correctly or shows error.
2. Unplug dryer and remove rear panel to access motor WPW
3. Locate tachometer/Hall sensor mounted on motor end bell (typically 2-3 wire harness).
4. Disconnect sensor harness and inspect for damage or corrosion.
5. Test sensor output per manufacturer specifications (typically requires oscilloscope to verify pulse signal while manually rotating motor shaft).
6. If sensor output absent or erratic, motor assembly must be replaced—sensor is integrated into motor housing and not serviceable separately.
7. Remove motor mounting bolts and belt tensioner to extract motor assembly.
8. Transfer blower wheel to new motor WPW10438706 if not included—ensure setscrew tightens securely on shaft flat.
9. Reinstall motor with proper belt tension (idler pulley should deflect 1/2-3/4 inch when pressed).
10. Exit diagnostic mode and run test cycle—verify motor reaches proper RPM and maintains speed under load.

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Problem: Diagnostic code: Moisture sensor circuit failure or communication error

How to Fix Dryer Error

1. Enter diagnostic mode and run moisture sensor test—observe resistance reading with dry vs. damp cloth on sensor bars.
2. Unplug dryer and open door to locate moisture sensor bars inside drum opening.
3. Clean bars thoroughly with isopropyl alcohol to remove fabric softener residue.
4. Remove front lower panel to access sensor wiring harness connection at control board.
5. Disconnect harness and inspect terminals for corrosion—clean with electronic contact cleaner if needed.
6. Measure resistance across sensor terminals at board—should read 1-2 megohms when dry. Near-zero resistance indicates shorted sensors.
7. If cleaning and reseating connections doesn’t resolve issue, replace moisture sensor assembly WPW
8. Route new harness carefully avoiding pinch points near drum rotation path.
9. Reconnect to control board ensuring secure connection.
10. Exit diagnostic mode and clear fault history per service manual procedure. Run test load with damp towels to verify sensor extends drying time appropriately.

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Problem: Diagnostic code: Door sense error on control board—intermittent door switch signal

How to Fix Dryer Error

1. Enter diagnostic mode and observe door status indicator while opening/closing door repeatedly.
2. Unplug dryer and remove front lower panel to access door switch WPW
3. Inspect wiring harness near door hinge for damage from repeated flexing—repair any broken wires.
4. Test door switch continuity while manually operating plunger—should show clean transition between open and closed states without intermittent flickering.
5. If switch shows intermittent continuity, replace WPW
6. Check door strike plate alignment—misalignment causes partial switch engagement triggering intermittent signals. Adjust strike plate position if needed.
7. Inspect door gasket for tears or debris preventing full closure—replace or clean as needed.
8. Reconnect all wiring and exit diagnostic mode.
9. Test door operation 10 times consecutively—dryer should start reliably each time with door closed.
10. Clear fault history per service manual to prevent d17 from reappearing on display.

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Problem: High limit thermistor/thermostat triggered—excessive temperature detected

How to Fix Dryer Error

1. IMMEDIATE ACTION: Disconnect power—overheating condition exists.
2. Remove rear panel to access heater assembly and thermal protection devices.
3. Test high-limit thermostat WP3392914 for continuity—no continuity indicates tripped/open thermostat.
4. Test thermal fuse WP3392519 on blower housing for continuity—replace if blown.
5. Inspect heating element for grounded windings (continuity between element terminal and metal housing)—replace element if grounded.
6. Verify blower wheel is intact and rotates freely—cracked wheel reduces airflow causing overheating.
7. Inspect entire vent system for blockages: clean lint screen thoroughly, check flexible hose for kinks, verify exterior vent flap operates freely.
8. Replace high-limit thermostat WP3392914 and thermal fuse WP3392519 as a set—both exposed to same overheating event.
9. Clean blower housing thoroughly of lint buildup before reassembly.
10. Test dryer with vent disconnected for first cycle while monitoring exhaust temperature with infrared thermometer—should not exceed 180°F. Reconnect vent only after verifying proper operation.

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Problem: Over-suds detection—excess detergent causing foam overflow into drain system

How to Fix Dryer Error

1. Cancel current cycle and power off dryer.
2. Remove lint screen and inspect for soap residue—clean thoroughly under running water.
3. Wipe interior of drum with damp cloth to remove detergent residue.
4. Run empty rinse cycle (no clothes) using cold water setting to flush residual suds from system.
5. For future loads: use HE (High Efficiency) detergent only, reduce detergent amount to manufacturer recommendation (typically 1-2 tablespoons for normal loads).
6. Avoid liquid fabric softeners—use dryer sheets instead to prevent sensor contamination.
7. If 0E recurs frequently with proper detergent amounts, moisture sensor bars may be contaminated—clean per F3E2 procedure.
8. Error clears automatically after suds dissipate and sensor readings return to normal—no parts replacement needed.

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Problem: Ambient temperature too low for proper thermistor operation—below 40°F/4°C

How to Fix Dryer Error

1. Verify room temperature where dryer is installed—must be above 40°F (4°C) for proper operation.
2. If installed in unheated space (garage, basement), provide supplemental heating during cold weather or relocate dryer to heated area.
3. Test inlet thermistor WP35001191 resistance at current ambient temperature—should follow standard thermistor curve (approximately 35k ohms at 40°F, 10k ohms at 70°F).
4. If thermistor reading doesn’t track ambient temperature correctly, replace WP
5. Inspect thermistor mounting—must be positioned in airflow path, not touching metal housing which conducts cold.
6. Check for drafts directly hitting thermistor location—seal gaps in dryer cabinet if needed.
7. After ambient temperature rises above 40°F, power cycle dryer (unplug 1 minute) to clear 6E code.
8. Run test cycle to verify proper temperature monitoring and cycle termination.
9. For permanent cold-location installations, consider installing thermostatically controlled space heater to maintain minimum 45°F ambient temperature.

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Problem: Temperature control error—overheating detected by multiple sensors

How to Fix Dryer Error

1. IMMEDIATE ACTION: Disconnect power—serious overheating condition exists.
2. Remove rear panel to access heater assembly and thermal protection devices.
3. Test thermal fuse WP3392519 on blower housing—replace if open (blown).
4. Test high-limit thermostat WP3392914—replace if open (tripped).
5. Inspect heating element for grounded windings causing continuous heating—test continuity between element terminals and metal housing (should be open circuit).
6. Verify blower wheel integrity—cracked or missing fins reduce airflow causing overheating. Replace wheel if damaged.
7. Inspect entire vent system for severe blockages: remove lint screen and clean thoroughly, disconnect flexible hose and clean with vent brush, verify exterior vent flap opens fully.
8. Check drum seals for tears allowing air bypass—replace if damaged.
9. Replace thermal fuse WP3392519 and high-limit thermostat WP3392914 as a set.
10. After repair, run first test cycle with vent disconnected while monitoring exhaust temperature—should cycle normally without exceeding 180°F. Reconnect vent only after verifying proper operation.

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