WP3387134 - Whirlpool Dryer Cycling Thermostat
OEM Temperature Control Thermostat - Controls Heating Element Cycling
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WP3387134 Cycling Thermostat - OEM temperature control component with internal bias heating control
Part Specifications
- Part Number:
- WP3387134
- Replacement Part:
- Whirlpool
- Part Type:
- Dryer Cycling Thermostat
- Function:
- Temperature Control
- Thermostat Type:
- Internal Bias Cycling
- Appliance Type:
- Electric & Gas Dryers
- OEM or Aftermarket:
- OEM Original or Aftermarket Replacement Available
- Installation Difficulty:
- Easy (10-15 minutes)
- Cross References:
- AP6008270, 3387134, 2011, 2893, 3-6910, 306910, 3387135, 3387139, ET187, PS11741405, WP3387134VP
Compatible Appliance Models
This cycling thermostat fits Whirlpool family dryers including electric and gas models:
Brand Compatibility Overview
- Whirlpool: 200+ models including LER, LGR, WED series dryers
- Maytag: 50+ models (MDG, MLG, LSG series dryers)
- Roper: 40+ models (RES, REX series dryers)
- Estate: 25+ models (TEDS, TEDX series dryers)
- Kenmore: Compatible with Whirlpool-manufactured models
- Other Brands: KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge
Common Compatible Models (Sample)
Popular Whirlpool Electric Models:
LER7646EQ2, LER4634PQ0, LER4634EQ2, LER4634JQ1, LER5620KQ1, LER4634JQ0, LER4634EQ0, LER7646JQ0, LER5636EQ3, WED5300SQ0, LER6620PQ0, LER7646EQ0, LER5636JQ0, LER8648PW0, LER4634EQ1, LER7646EQ1, LER8620PW0, LER7620LW0, LER8648LW0, LEB6300PW0, WED5540SQ0, LER7648KQ0
Popular Whirlpool Gas Models:
LGR7646EQ3, LGR4634JQ2, LGR5620KQ1, LGR8648LW0, LGR4634EQ0, LGR7646JQ0, LGR5636EQ2
Maytag Models:
MDG3000AWW, MDG4000BWW, MDG7600AWW, MDG9606AWW, MLG2000AWW, LSG7806AAE
Roper Models:
RES7646KQ2, REX5634KQ1, RED4440SQ0, RES7745PQ0, RES7745RQ0, REX6634PQ0, REX4634KQ1, RES7648KQ0, REX5634KQ0
Estate Models:
TEDS740PQ0, TEDS840JQ2, TEDS840PQ0, TEDX640PQ0, TEDX640JQ1
Thermostat Compatibility
- Both Electric & Gas: Works with both electric and gas dryer models
- Standard Size: Fits most 29-inch residential dryers
- Model Years: 2000-2015+ manufactured dryers
- Mounting: Standard 2-terminal thermostat mounting
Complete Model Number List
Click to View All Compatible Dryer Model Numbers
Whirlpool Electric Models
LER7646EQ2, LER4634PQ0, LER4634EQ2, LER4634JQ1, LER5620KQ1, LER4634JQ0, LER4634EQ0, LER7646JQ0, LER5636EQ3, WED5300SQ0, LER6620PQ0, LER7646EQ0, LER5636JQ0, LER8648PW0, LER4634EQ1, LER7646EQ1, LER8620PW0, LER7620LW0, LER8648LW0, LEB6300PW0, WED5540SQ0, LER7648KQ0, LTE6234DQ0
Whirlpool Gas Models
LGR7646EQ3, LGR4634JQ2, LGR5620KQ1, LGR8648LW0, LGR4634EQ0, LGR7646JQ0, LGR5636EQ2
Maytag Models
MDG3000AWW, MDG4000BWW, MDG7600AWW, MDG9606AWW, MLG2000AWW, LSG7806AAE
Roper Models
RES7646KQ2, REX5634KQ1, RED4440SQ0, RES7745PQ0, RES7745RQ0, REX6634PQ0, REX4634KQ1, RES7648KQ0, REX5634KQ0
Estate Models
TEDS740PQ0, TEDS840JQ2, TEDS840PQ0, TEDX640PQ0, TEDX640JQ1
Kenmore Models
Compatible with Whirlpool-manufactured Kenmore dryer models (110-series and other Whirlpool-built models)
Universal Compatibility - This cycling thermostat works with both electric and gas dryers, controlling the heating element cycling in electric models and gas valve cycling in gas models. Always verify your model number for guaranteed compatibility using the PartsDiscount.com compatibility checker.
What This Cycling Thermostat Does
The WP3387134 Whirlpool Dryer Cycling Thermostat monitors internal air temperature and controls the heating element to maintain optimal drying temperature. This component ensures consistent heat levels for efficient drying while preventing overheating.
Key Features
- Internal Bias Design: Self-regulating temperature control for consistent performance
- Automatic Cycling: Turns heating element on/off to maintain proper temperature
- Dual Compatibility: Works with both electric and gas dryer models
- Temperature Monitoring: Continuously monitors air temperature in dryer drum
Common Problems This Thermostat Solves
- Dryer not heating or heating inconsistently
- Clothes taking too long to dry completely
- Dryer overheating and shutting off early
- Timer not advancing properly during cycle
- Clothes coming out too hot or burned
- Dryer running but not shutting off automatically
How the Cycling Thermostat Works
The cycling thermostat acts as a temperature switch that opens and closes electrical contacts based on the air temperature inside your dryer. When the temperature gets too low, it closes the circuit to turn on the heating element. When it reaches the set temperature, it opens the circuit to turn off the heat.
Temperature Control Process
This thermostat works with your dryer's temperature selection settings, cycling the heating element on and off approximately every 2-3 minutes to maintain the selected heat level throughout the drying cycle.
Why Replace Your Cycling Thermostat?
Temperature Control Failure: Over time, the bimetal sensor can lose calibration or the electrical contacts can wear out, causing inconsistent temperature control.
Energy Efficiency: A properly functioning thermostat prevents energy waste from overheating and reduces drying times.
Signs You Need a New Cycling Thermostat
- Inconsistent heating: Dryer alternates between too hot and not hot enough
- Long drying times: Clothes require multiple cycles to dry completely
- Overheating: Clothes come out extremely hot or with heat damage
- No temperature control: Dryer heats continuously without cycling off
- Continuity test failure: Multimeter shows thermostat not opening/closing properly
DIY Installation Guide (10-15 Minutes)
Step 1: Safety & Access
Unplug dryer and remove rear panel. Locate the cycling thermostat near the blower housing, usually attached to the side of the dryer cabinet.
Step 2: Remove Old Thermostat
Take photo of wire connections, disconnect the two wires from thermostat terminals. Remove mounting screw and lift out old thermostat.
Step 3: Install New Thermostat
Position new thermostat in same location, secure with mounting screw. Reconnect wires to terminals in same configuration as original.
Step 4: Test Operation
Replace rear panel, plug in dryer, and run test cycle. Thermostat should cycle heating element on/off during operation.
⚡ Electrical Safety Warning
Power Disconnection: Ensure dryer is completely unplugged before beginning repair. Test thermostat with multimeter to verify proper operation before installation.
Common Issues & Solutions
Thermostat Still Not Working
Cause: Faulty thermal fuse or high-limit thermostat
Solution: Test and replace other thermal protection components
Dryer Still Overheating
Cause: Restricted airflow or blocked exhaust vent
Solution: Clean lint buildup from exhaust system
Temperature Not Consistent
Cause: Poor thermostat mounting or damaged wiring
Solution: Ensure proper mounting and check wire connections
Rapid Thermostat Failure
Cause: Excessive lint buildup causing overheating
Solution: Clean dryer interior and exhaust system thoroughly
Customer Reviews View Official Reviews
"Perfect replacement for my Whirlpool dryer. The temperature control is much more consistent now. Installation was easy with basic tools."
Verified Purchase - 2 weeks ago"My dryer was overheating and this thermostat fixed the problem completely. Clothes dry evenly now without getting too hot."
Verified Purchase - 3 weeks ago"Easy DIY repair. The thermostat controls the heating element properly and my drying times are back to normal. Great OEM quality."
Verified Purchase - 1 week ago"This was exactly what my Maytag dryer needed. The temperature cycling works perfectly and installation took less than 15 minutes."
Verified Purchase - 5 days ago"Excellent replacement thermostat. Fixed my inconsistent heating problem immediately. Much cheaper than calling a repair service."
Verified Purchase - 4 days ago"Perfect fit for my Roper dryer. The temperature control is working great and my clothes are drying properly again. Highly recommend."
Verified Purchase - 2 days agoFrequently Asked Questions
How do I test if my cycling thermostat is bad?
Use a multimeter to test continuity. At room temperature, it should show continuity (closed). When heated, it should open. If it stays open or closed regardless of temperature, it needs replacement.
What's the difference between cycling and high-limit thermostats?
The cycling thermostat controls normal temperature cycling during drying. The high-limit thermostat is a safety device that shuts off heat if temperatures get dangerously high.
Can I use this in both electric and gas dryers?
Yes, this thermostat works in both types. In electric dryers it controls the heating element, in gas dryers it controls the gas valve cycling.
Why does my dryer keep burning out thermostats?
Usually caused by restricted airflow from lint buildup. Clean your dryer's exhaust system thoroughly and check the vent outside your home for blockages.
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