W10873801 whirlpool START DEV OEM is an electromechanical start device supplied as an OEM replacement for certain Whirlpool refrigeration systems. The component is intended to assist the hermetic compressor motor during the start-up phase by momentarily engaging the compressor’s start winding or modifying the motor circuit so the compressor can reach operating speed. In practice this part is a relay/PTC-type starter assembly packaged for direct replacement on compatible compressor models.
Inside the appliance,the start device sits in the compressor start circuit and interfaces directly with the compressor motor,overload protector and the appliance’s power and control wiring. It works as part of the start sequence controlled by the thermostat or control board,providing a brief change in motor circuit conditions that reduces starting torque demands and limits inrush current. As it is indeed part of the electrical starting system,its behaviour affects compressor starting reliability,electrical load on the supply circuit and interaction with overcurrent or thermal protection devices.
this article will describe the W10873801 start device’s functional role and typical electrical characteristics, list the types of appliances and compressor models where it is commonly used, and outline common failure symptoms (such as, compressor hum without start, frequent cycling, or tripped protection). It will also cover compatibility and selection considerations, non-procedural troubleshooting guidance to help isolate starter-related faults from other system issues, and practical replacement considerations such as matching OEM specifications and observing basic safety and wiring practices during service.
Table of Contents
- Function and Role of the Start Device in Whirlpool Washer Control Systems
- How the W10873801 Whirlpool START DEV OEM operates Within Washer Control and Power Circuits
- Common Failure Symptoms, Electrical Signatures, and diagnostic Indicators
- replacement Considerations, Model Compatibility, and Installation Verification
- Q&A
- The way Forward
Function and Role of the Start Device in Whirlpool Washer Control Systems
The W10873801 Whirlpool START DEV OEM functions as the interface that initiates the drive motor’s start sequence in compatible Whirlpool washers. It accepts a low-current control signal from the main board and closes a high-current path or triggers the motor starter circuit so the motor can develop torque from standstill. The module frequently enough contains suppression components and thermal protection to limit inrush current and protect the control electronics during the brief high-load interval required to spin the tub or begin agitation.
In operation, the start device only needs to conduct for the short period required to bring the motor up to speed; after that the motor’s run circuit takes over.Failures typically present as a humming motor, intermittent start, no-spin conditions, or control board error codes that indicate motor start faults. Before replacing the device, verify connector compatibility, pinout, and resistance values with a service manual or meter; mechanical fit (mounting tabs and harness routing) must match the washer model to ensure proper grounding and heat dissipation.
- Primary roles: initiate motor start, provide inrush control, and protect the control board from start currents
- Common symptoms of failure: no start/humming, intermittent spin, or specific motor-start error codes
- Replacement checks: verify part number, connector type, and electrical resistance before installation
| Item | Description |
|---|---|
| Part | W10873801 Whirlpool START DEV OEM |
| Function | Provides momentary high-current path or start signal to the drive motor; includes suppression/overcurrent protection |
| Typical fault indication | Motor hums without turning, intermittent starts, or motor-start error codes |
How the W10873801 Whirlpool START DEV OEM Operates Within Washer Control and Power Circuits
The W10873801 Whirlpool START DEV OEM is a dedicated start device used in single‑phase washer drive systems to provide a controlled path for the motor start winding during the initial seconds of motor rotation. Installed at the motor terminal block and wired into the washer’s power circuit, this device is actuated by the machine’s control board or mechanical timer so that the start winding receives current only during the brief startup interval. In practical terms,the start device either provides the phase shift or momentary connection needed to produce starting torque and then drops out when the motor reaches operating speed,preventing continuous energization of the start circuit and avoiding overheating or reduced efficiency.
Technicians should view the start device as a small but critical element of the washer’s motor control subsystem: it interfaces directly with the motor windings, the line supply, and the control output that times start events. Typical field behavior includes failure modes such as intermittent starting, persistent humming, or a motor that runs but lacks torque during spin – symptoms that point to either the start device, motor windings, or control timing. When replacing, match the OEM part number and connector style to ensure compatibility with the motor harness and control signals. Common diagnostic indicators and replacement guidance include:
- Symptom: Humming without spin – check start circuit continuity and replace the start device if open or intermittent.
- Symptom: Delayed spin or weak torque – verify control output timing and confirm the start device drops out after acceleration.
- Installation: Confirm plug orientation and secure terminal connections to prevent poor contact or arcing.
| Item | Description |
|---|---|
| Function | Provides a timed connection or phase-shift path for the motor start winding during motor acceleration |
| Connection | Mounted at motor terminal block; wired between line, control output, and start winding |
| Failure mode | Intermittent starts, humming, loss of starting torque - symptoms that mimic motor or control faults |
Common Failure Symptoms, Electrical Signatures, and Diagnostic Indicators
The W10873801 Whirlpool START DEV OEM is a motor start device designed to provide the auxiliary starting torque required by single‑phase induction motors used in household appliances.In practice this component behaves as either an electromechanical relay or a solid‑state start assist that momentarily connects the auxiliary/start winding (or a start capacitor) during motor spin‑up and then disengages; compatibility depends on the motor winding arrangement and connector style on the appliance model. Technicians should expect the device to change state only during initial energization and to show measurable signatures at the terminals (continuity or low resistance when engaged, open/ higher resistance when out of circuit) and possible heat buildup if the motor or device has marginal load or internal fault. Examples: a refrigerator compressor start kit uses the same functional principle as a dryer or washer motor start device,but pinout,mounting,and electrical ratings must match the appliance model for safe replacement.
- Motor hums and will not start, or starts intermittently
- High inrush current or repeated tripping of branch‑circuit breakers at motor start
- Burnt or discolored terminals, melting of connector housing, or thermal cutouts opening
- Open or shorted start device when checked with multimeter continuity/resistance tests
- Voltage drop across the start device or auxiliary winding during start that deviates from spec
| Item | Description |
|---|---|
| Coil/relay continuity | Start relay should show defined continuity when engaged; open or short indicates failure. |
| Voltage behavior during start | expect momentary full line voltage on start terminals then drop; persistent voltage indicates failed disengagement. |
| Physical/thermal signs | Discoloration, melting, or hot housing points to repeated overloads or internal shorting. |
For diagnosis, first observe dynamic symptoms under load: measure line voltage at the device during a start attempt, clamp the supply for inrush current, and compare readings to the motor’s service data. Use a multimeter to check for continuity and a low‑ohms resistance between start terminals when the device should be engaged; a high resistance or intermittent reading often correlates with the humming/no‑start condition. When replacing, verify mechanical fit, terminal type, and electrical ratings against the appliance model; if the start device tests nominal but the motor still fails to start, investigate the motor start winding, start capacitor (if present), and supply voltage integrity before attributing fault to the W10873801 whirlpool START DEV OEM.
Replacement Considerations, Model Compatibility, and installation verification
The W10873801 Whirlpool START DEV OEM is the OEM motor start device used on select Whirlpool appliances to manage the motor’s initial engagement phase. Its function is to provide the appropriate start-path behavior-either by engaging a start relay or enabling an electronic start circuit-long enough for the motor to reach running speed, then remove the start condition. When evaluating replacements, verify the appliance model and parts fiche, compare terminal layout and mounting footprint, and confirm weather the appliance uses a separate start device or an integrated control; mismatches in harness connectors or terminal positions are common causes of incompatibility. Typical failure modes are motor hum without acceleration, intermittent starting, or nuisance tripping of thermal protection, which help distinguish a start-device issue from motor-winding or control-board faults.
- Confirm exact appliance model/serial and consult the Whirlpool parts fiche before ordering replacement.
- Compare connector type, terminal spacing, and mounting points; mechanical fit is as notable as electrical match.
- Perform visual inspection for heat damage or corrosion before installation.
- After installation, run controlled operational tests rather than prolonged full-load runs to verify correct engagement and disengagement.
verify installation electrically and operationally: check continuity and resistance values against the service manual where available,ensure all crimped or quick-disconnect terminals are fully seated and insulated,and observe the motor during a diagnostic cycle for smooth acceleration and normal sound levels. If the motor still only hums after installing a confirmed-compatible W10873801, isolate the motor windings and supply voltage to rule out winding faults or supply issues; if the replacement resolves starting but symptoms reappear under load, inspect thermal protectors, drive belts, and control relays for secondary faults. Record the appliance model/serial and the installed part number for warranty and future troubleshooting reference.
| Item | Description |
|---|---|
| W10873801 | Motor start device; replace when motor fails to accelerate, verify connector fit, continuity, and correct operation during a test cycle. |
Q&A
What is the W10873801 START DEV OEM?
The W10873801 START DEV OEM is a replacement start device (start switch/assembly) sold by Whirlpool as an original equipment manufacturer (OEM) part. It is indeed the electrical/mechanical component used to complete the start circuit on compatible Whirlpool-family appliances so the motor or controller will begin operation when the user presses the Start button.
Which appliances use the W10873801 part?
W10873801 is used in select Whirlpool, Maytag, KitchenAid and Kenmore appliances. compatibility depends on the exact appliance model and production date – not all machines from those brands use this part.Always verify compatibility by entering your appliance model number on the Whirlpool parts site or on reputable parts sellers (e.g., RepairClinic, PartSelect) before ordering.
What symptoms indicate the start device (W10873801) might be bad?
common symptoms include: the appliance does not start when the Start button is pressed, intermittent starting, a click/noise but motor does not run, or the console shows a start error code. These symptoms can also be caused by door switches, control boards, fuses, or wiring, so the start device should be tested as part of a systematic diagnosis.
How can I test the W10873801 start device?
First, disconnect power to the appliance. Remove the control panel to access the start device. Use a multimeter set to continuity or resistance: with the start button not pressed you may see an open circuit; when the button is pressed you should get continuity (or a very low resistance) across the appropriate switch terminals. Consult the appliance wiring diagram for the exact terminals. If the device does not change state or shows infinite resistance when pressed, it is likely faulty.
How difficult is it to replace the W10873801 and what are basic replacement steps?
Difficulty is moderate and typically requires basic hand tools and safe handling of electrical components.General steps: 1) Unplug the appliance or shut off its breaker. 2) Remove the control console or access panel (screws/clips). 3) Note or photograph wiring locations. 4) Disconnect the wire harness and/or quick-disconnect terminals from the start device. 5) Remove mounting screws and install the new device. 6) Reconnect wires, reassemble, restore power and test. If you are not agreeable with electrical work, hire a qualified technician.
Should I buy the OEM W10873801 or an aftermarket equivalent?
OEM parts like W10873801 are made to the manufacturer’s specifications and usually provide the best fit, form and warranty. Aftermarket parts can be cheaper but may differ in longevity or fit. if you want guaranteed compatibility and warranty support from the manufacturer, choose the OEM part; if cost is the primary concern, reputable aftermarket vendors can be considered but check return policies and reviews.
How much does the W10873801 typically cost and where can I buy it?
Prices vary by seller and region, but start devices of this type are generally low-to-moderate cost parts (typically in the low tens to a few tens of dollars). You can buy W10873801 from the Whirlpool parts website, authorized parts distributors, appliance parts stores (online and local), and marketplaces. Always confirm the part number and your appliance model before purchase.
Are there any safety or warranty considerations when replacing the W10873801?
Always disconnect power before servicing the appliance. If the appliance is under manufacturer or extended warranty, check warranty terms before doing repairs yourself because self-repair can void some warranties. When installing the part, follow proper grounding and wiring practices. If unsure, use a certified appliance technician to avoid electric shock, damage to the appliance, or voiding coverage.
The Way Forward
The W10873801 Whirlpool START DEV OEM serves as a critical starting device in compatible Whirlpool appliances,helping to initiate motor operation reliably and maintain consistent performance. As an original equipment manufacturer component, it is designed to meet the appliance’s specifications for fit, function, and durability, and plays an important role in reducing stress on related electrical and mechanical systems to support overall appliance longevity.
Because start-device symptoms can overlap with other electrical or mechanical faults, accurate diagnosis is essential before replacement. When testing indicates the W10873801 is the cause of a failure, replacing it with the correct OEM part and following proper service procedures helps restore safe, reliable operation and preserves compatibility with the appliance’s design. Professional assessment and installation-or careful adherence to manufacturer guidance-remain the most effective way to ensure any replacement achieves the intended performance and longevity benefits.
Professional Appliance Service
If your appliance requires professional diagnosis or repair, visit
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