807387501 Frigidaire Dishwasher Timer is a timer assembly used to sequence andâ control the operational stages⣠ofâ aâ frigidaireâ dishwasher. It is⣠aâ control component-implemented in some models⣠as âŁan electromechanical âtiming â¤switch and in â¤others as an electronic control module-that âgoverns the âŁtimedâ activationâ and deactivation of loads and⢠signals within â¤the appliance.
Within the dishwasher, theâ timer serves as the centralâ sequencing device that coordinates âinteraction among the water inlet valve, â¤drain pump, wash motor, â¤heating⤠element or heater relay,⢠door âlatch⤠and interlockand⢠user interface or selector switches.⢠It performs⣠timed â˘switching of circuits âŁor issues control logic⤠to â¤downstream relays and sensorsand itâ typically âinterfaces with both line-voltage⣠loads and low-voltage control signals. âProper operation of the timer ensuresâ correct cycle progression, â˘synchronization of mechanical and thermal subsystemsand enforcement of safety interlocks.
This article⣠explains theâ functional â˘architecture of⤠theâ 807387501 timer, describes â˘how toâ confirm âcompatibility with specificâ Frigidaire models⣠and wiring harnessesand⢠outlines common âŁfailure symptoms suchâ as no-start conditions,⣠stuck â˘cycles,â or missed heater/drain â˘events. It also â˘covers diagnostic approaches useful to technicians and engineers-visual inspection, connector âŁand continuity checksand voltage⣠verification-and discusses practical replacement considerationsâ including part verification,⤠harness orientationand safety precautions when⤠working with mains-connected components. The data is intended to help technicians, engineersand appliance owners assess, troubleshootand âplan replacement of theâ timer âŁassembly.
Table of⣠Contents
- Functional Role and Electricalâ Interface âof the Dishwasher Timer Assembly
- How the 807387501 frigidaire Dishwasher âTimer⢠Works â¤Inside⣠the Appliance:⤠Control Logic, motor Driveand Switchâ Sequencing
- Common âFailure Symptoms âŁand Diagnostic Indicators for âŁTimer-relatedâ Faults
- Replacement Considerations, Model Compatibilityand StepâbyâStep Installation Procedures
- Q&A
- The way Forward
Functional Role⢠and Electrical Interface of the Dishwasher Timer Assembly
The 807387501 Frigidaire âDishwasher Timer functions as the electromechanical âsequence controller that⢠routes â˘mains power to âthe wash motor, drain pump, water inlet⤠valve,â and heating element according â¤to the selected cycle. Internally it⤠uses a⢠small⣠synchronous clock motor⤠driving⣠cams âand multipleâ cam-operated switch poles so⤠thatâ contacts close and open⤠in⣠a fixedâ sequence; thisâ provides timed control â˘without aâ separate microcontroller. Inâ practical terms,theâ timer supplies switched line voltage to devicesâ at specific intervals (fill â wash â drain â rinse â âŁdry),so a failed â˘timerâ typically results in a⢠machine that âwill not advance cycles,will not energizeâ the âpump â˘or âheater at the correct⢠time,or â¤will âremain stuck in one state despite correct âsensors and switches elsewhere in the appliance.
- common symptoms: no cycle⣠advancement, intermittent operationor continuous heating/draining when â˘other components test⤠good.
- Basic âdiagnostics: verify incoming line voltage atâ the timer,check⣠continuity â˘of the â˘clock motor and cam â˘switch contacts,and observe terminal voltages during an attempted cycleâ to confirm â¤switching behavior.
- Replacement considerations: match terminal layout, clockâ motor voltage,â and mounting âorientation-mechanical cam positions and terminal âlabeling must âŁmatch to maintain correct sequencing.
The electrical interface typically presents multiple screwâ or spade terminals labeled for line, neutral, motorandâ switched outputs; the timer itself isâ usually âdriven by 120 VAC â in North American models and contains several isolated â˘switch poles to feed different circuits. For troubleshooting, measure mains⣠at the timer line âinput and than probe the output terminalsâ during each stage: the correct sequence âwill show mains present on the appropriate output⣠onlyâ for the stage where that circuitâ should be active. âwhen replacing the timer, â˘use a unit with identical terminal mapping and cam timing; mismatched⤠pole assignments or different clock motor⣠speed can causeâ incorrect sequencing or unsafe âoperation.
| Item | Description |
|---|---|
| Rated âvoltage | Typically 120 âŁVAC for North â¤American Frigidaire units |
| Motor type | Synchronous clockâ motor driving cam-operated switches |
| Typical terminals | Line (L), Neutral⣠(N), motor, heater/pump/valve switched outputs (multiple poles) |
How the 807387501⤠Frigidaire Dishwasher Timer Works Inside the Appliance: Control Logic, Motor Driveand Switch sequencing
807387501 Frigidaire Dishwasher⢠Timer is an â¤electromechanical sequencing module that provides the timed control logic and switch routing for âcompatible âFrigidaire âdishwashers.⤠Its internal synchronousâ clock motorâ advances a cam-and-switchâ assembly through discrete positions; each cam position closes and â˘opens specific contacts âto⤠routeâ mains⢠power to â˘theâ wash pump, drain â¤solenoid, heater, detergent dispenserand⢠door interlock âas the cycle âprogresses. Because theâ timing⢠logic is implemented with mechanical cams and contactâ sets rather than software,⢠replacement requires matching the terminal layout and cam profile⤠to the appliance model – electronicâ control boards are not interchangeable with this type of timer. A typical failure modeâ is⤠loss of advancement (stays in one stage), intermittent contact âŁopening (rusted or worn cam followers)or no motor drive, which âwill produce âsymptoms such as noâ motor operation, âno âdrainor no heater energization âdespite those âindividual components testing good when â˘directly powered.
- Common⢠symptoms:⤠stuckâ cycle stage, â˘no advancement,â intermittent powering of pumps/heater.
- Quick diagnostics:⤠verify the âtimer motor runs, manually advance theâ cam to observe which outputs changeand check⣠continuity across timer contacts during different positions.
- Compatibility âchecks: confirm âterminal⤠numbering and cam pattern match the service⢠diagram â¤before replacing the⣠unit.
The timer motor is typically a low-RPM synchronous or shaded-pole motor⣠sized to produce defined dwellâ intervals; its mechanical drive determines how âŁlong each switch state persists and therefore sets the run/drain/fill durations.Switch sequencing inside the timer is usually implemented with multiple⣠SPDT or multi-contact switch stacksâ actuated by shaped âŁcam lobes,⢠so âŁa⣠single cam rotation âcan perform severalâ simultaneous routing changes (for example, turning off the wash pump while energizing the drain⣠solenoid). âŁTechnicians â˘use âŁa âmultimeter to⣠trace which timer terminal supplies voltage to a given load duringâ a âspecific cam positionâ – asâ an example, âchecking for line voltage⤠to theâ heater⣠terminals onlyâ when theâ timer is âin the dry/heat segmentâ helps isolate a contact fault⤠from a bad heatingâ element.â For âfield replacement, align⤠the mounting and wiring harness exactly and confirm âthat the timer provides the expectedâ outputs âfor each labeled âterminal before⤠reassembling⤠the dishwasher.
| Item | Description |
|---|---|
| Motor drive | Synchronous/shaded-pole âŁmotor advancing cam for âtimed dwell |
| Switch pack | Cam-actuated SPDT/multi-contact switches that⣠route power to⢠loads |
| Diagnostic âtip | Manually âŁadvance cam âand observe which âŁterminals â¤gain âor lose mains voltage |
Common Failure Symptoms⢠and âDiagnostic âIndicators for timer-Related Faults
The 807387501 Frigidaire Dishwasher Timer functions as âthe⣠sequencing hubâ that âŁroutes mainsâ power to the wash motor, drain pump, âwater âinlet âŁvalve,⢠and heater at the correct times. Timer-related failures produce predictableâ electrical and mechanical symptoms because the timer either fails⣠to close contacts or advancesâ erratically between steps: a cycle may stop midâsequence, the motor⤠or pump will not energize⢠while other components stillâ operateorâ the dishwasher will remain⤠stuck on â¤a single⣠phase. Technicians should consider both⢠mechanical wear (worn cams,⣠broken advance springs) andâ electrical contact degradation (pitted or carbon-tracked⤠contacts) when â˘assessing compatibility and deciding whether to replace⣠the timer or ârepair âassociated wiring⢠and connectors;â always âconfirm the⤠replacement⤠part number⣠matches the appliance model beforeâ installation.
- No cycle advancement while controlsâ and lights remain responsive.
- Circulation motor, drain pumpor heater fail to energize â˘during⤠their expected stage.
- Intermittent or erraticâ stage â˘changes-cycles â¤skip steps or advance â˘unpredictably.
- Visible arcing, pittingor a burnt âodor coming from the⣠timer assembly.
- Continuous⤠running of a single component (stuck contact) or â¤complete âŁsilence on⤠mechanical timers⤠when a click is expected.
| Item | Description |
|---|---|
| Open contact / no output | Measure line voltage atâ the⣠timer output terminals during the stageâ whenâ a component⤠should run;â absence â¤of voltage indicates âfailed contacts orâ broken internal connections. |
| Intermittent continuity | Wiggle-test âconnectors and⣠rotate the⤠timer âŁslowly; âŁfluctuating continuity or sudden opens point to wornâ cams or⣠dirty⣠contacts requiring replacement or⢠cleaning. |
diagnostic â˘workflow⤠should combine visual inspection with electrical verification: verify incomingâ supply at the timer,use a multimeter to â¤confirm expected line voltage appears on the appropriate âŁoutput terminal during eachâ cycle⤠stage,and check for low-resistance â˘continuity across mechanical⤠switch contacts.⢠For example, âif the drain â¤pump never receives voltage, measure the timer’s pump-outputâ terminal while initiating âa drain step; an open reading isolates the timer, whereas correct âvoltage but no pump âoperation â˘points to the⤠pump or its wiring. Exercise standard safety precautions-isolate mains before disassembly-and use the appliance’s âparts list âto ensure the âŁcorrect 807387501 âpart is ordered when replacement is required.
Replacement â¤Considerations, Model Compatibilityand StepâbyâStep Installation Procedures
The 807387501 frigidaire Dishwasher Timer is the electromechanical sequencing device that governs â¤valve, âpump, âheaterand âmotor ârelay activation through cams and switch contacts (or an integrated â˘control assembly on some revisions). A failed timer typicallyâ presents â¤as a⤠cycle âthat will not⤠advance,⤠a⢠stuckâ or humming timer motor, intermittent operation ofâ the drain or wash â˘pump, â¤or continuous fill.â Compatibility dependsâ onâ the âŁtimer’s shaft and âŁmounting orientation, connector pinoutand whether â˘the unit âŁuses a synchronous motorâ orâ anâ electronic⤠control module;⢠swapping â¤in â˘a physically similar⣠timer with a different cam profile or pin â¤assignmentâ can produce incorrect sequencing or damage other components. For example, a model⢠that⣠has a⣠different cam â¤timing may start the pump during the fill phase, â¤so verify the replacement’s pinout and cam profile against the appliance wiring diagram before â˘installation.
- Verify⤠model fit: mounting tabs, shaft orientationand connector type.
- Check electricalâ behavior: continuity ofâ switch terminals and motor resistance.
- Observe symptoms: humming âmotor, no step âadvanceor stuck contacts.
- Confirm âcontrol⤠type: âsynchronous motor âversus electronic timer module.
- Document wiring:⢠photographâ harnessâ and label âconnectors before⢠removal.
| Item | Description |
|---|---|
| Part Number | 807387501 – check⣠original⤠part stamp â¤and service sheet⣠for cross-references |
| Connector | Multi-pin stamped terminals – match⣠harness âpinout before reconnecting |
Installation â˘procedure begins with safety: disconnectâ power at theâ breaker andâ confirm zero voltage to âthe appliance. âRemove the lower kickplate orâ access panel to reach âthe timer, photograph the wiring âharness, then detach all connectorsâ and note any retained âspadeâ orientations. Unfasten âŁmounting screws and extract the timer; compareâ the replacement visually forâ identical cam â¤positions, shaft length,â and mounting bosses. Before â¤final âŁreassembly, âbench-check the timer motor resistance and âconfirm continuity across the switch âŁterminals that âcorrespond⤠to fill, â˘wash,⤠and â˘drain âpositions using aâ multimeter while manually rotating the shaft⤠to indexed âŁpositions referenced âon the⣠service sheet. Reinstall,⣠reconnect theâ harness â˘in the âŁphotographed âŁorientation, restore powerandâ run a short test âcycle âwhileâ observing valveâ and⢠pump timing; if sequencingâ is incorrect, remove â¤power and re-verify â˘part compatibility⤠or pinout mapping rather than forcing âŁoperation â˘with mismatched components.
Q&A
What is Frigidaire⤠part â¤807387501?
Frigidaire part 807387501 is a⢠dishwasher â˘timer / â¤control assemblyâ used in certain Frigidaire dishwashers. It sequences âand supplies power to⣠the dishwasher’s components âŁ(wash motor, drain⤠pump, water⣠inlet â¤solenoid, heater/thermostatâ and cycle selection)â and âŁmanages the timing of wash, rinse â¤and drain operations.
What symptoms indicate theâ 807387501 timer âmay be failing?
Common âsymptoms⤠include: dishwasher â˘won’t start orâ is unresponsive,â cycles won’t â¤advanceâ or get âstuck,â intermittentâ operation, no pump or no âdrain when expected, no heating during â¤theâ dry cycle, unresponsive buttons or display, âor frequent âŁtripping of fuses/circuit breakers. Intermittent or erratic behavior often⢠points to aâ control/timer problem.
How canâ I diagnose whether the âŁtimer/control â¤is âthe problem?
Start with basic⣠checks: verify household power to the dishwasher⤠at the terminal block,⤠confirm the door latch and float switch are working,â and check for stored error codes or diagnostic mode messages.With the power off,visually inspect the âŁcontrol board⢠for burned âcomponents,corrosion or water damage. using a multimeter (and â˘the service manual wiring diagram), âŁverify â˘the control â¤is receiving â˘lineâ power and that it is outputting the expected voltages⣠to motor, heater and solenoid at the appropriate times.If all external components (motor,â pump, solenoid, door switches, thermalâ fuse) test good but the control does not send the â¤expected⤠outputs, the â˘control/timer is likely bad.
Can â˘theâ 807387501⤠timer beâ repaired or must it be â˘replaced?
Most modernâ dishwasher control âmodules are notâ designed for field⣠repair and are replaced as âŁan assembly. In some â¤cases âŁa technician can repair solder joints or replace obvious failed components, but generally replacement of the complete timer/controlâ assembly is the â˘reliable approach.â Attempting component-level âŁrepairâ is best left to qualified electronics technicians.
How do I replace the 807387501 timer safely?
Always disconnect⤠power at the household breaker before beginning. Remove⤠the inner⣠door panelâ or controlâ access panel â(follow âyour model’s⣠service âinstructions), note or photographâ all connector locations, disconnect the wiring harness and â˘any â¤grounding âstraps, remove mounting⣠screwsand âswap theâ control assembly.⣠Reconnect all wiringâ exactly as removed, reassemble âthe âdoor/panel, restore power and⤠run a âŁtest cycle. If â¤you’re not cozy with âelectrical work, hire a qualified âŁappliance technician.
How⤠do Iâ confirm âthat 807387501⢠is âthe⢠correct⣠replacement for my dishwasher?
Locate âyour dishwasher’s modelâ and serial â¤number from the tag (usually on the⣠door âŁedgeâ or frame) and cross-reference that model number with Frigidaire’s parts⢠list, an authorized partsâ dealeror theâ manufacturer’s website.⤠Do not rely solely on aâ visual match-verify⣠the part number or an approved cross-reference to ensureâ compatibility.
How much does âtheâ 807387501 timer typically âcost and â¤is â˘replacement worth it?
Prices for the timer/control assembly âŁtypically range from roughly $50 to $200 for the part âalone, depending on supplier and whether it’s OEM or aftermarket. Labor costs vary⣠by location and complexity; expect an appliance technician visit to be additional.Whether it’s âŁworth replacing depends on âŁthe dishwasher’s⢠age, other failingâ components, â˘and repairâ cost versus replacement appliance cost. For a relatively new orâ or else healthyâ dishwasher, replacing the control is frequently⤠enough economically justified.
Are there troubleshooting⤠steps â˘I should try before replacing âthe timer?
Yes. âFirst, try a power resetâ (disconnect power for 1-5 âminutes) to⢠clear transient faults. Check/error-code âdiagnostics per âŁthe service manual. inspectâ andâ test the door âlatch,float/safety switch,inletâ valve,and drain for obvious faults. â˘Clean andâ reseat connectors and look⢠for corrosion or moisture on the control.If these checks âdon’tâ resolve the â˘issue âand the control doesâ not produce expected outputs during diagnostics, replacement âis âthe likely ânext step.
The Way Forward
Theâ 807387501 â˘Frigidaire dishwasher timer âŁis aâ central control â¤component âthat⤠coordinates âŁthe appliance’s wash cycles, timing sequencesand safety interlocks. âBy regulating the sequence and duration âofâ operations, this timer helps ensure consistent cleaning âperformance, efficient water and energy useand âsafeâ operation of â˘the dishwasher.When functioning correctly, â¤it contributes directly to the âappliance’s reliability and user convenience.
Accurate diagnosis is essential âŁwhen timer-relatedâ symptoms appear-such as âinterrupted cycles,â failure to advanceor unresponsiveâ controls-as â¤similar symptoms can stem from other componentsâ or wiring⢠issues.⣠Proper testing by a qualified âtechnician, usingâ the manufacturer’s diagnostics âand appropriate â¤tools, reduces the ârisk of unneeded parts replacement and â¤helps identify âŁthe â˘root cause. When replacement is required,â selecting â˘the⢠correct 807387501⣠timerâ orâ an approved â¤equivalent and following recommended installation and safety procedures supports long-term performance.
understanding âthe role â˘of âŁthe 807387501 Frigidaire dishwasher timer and prioritizing accurate diagnosis and proper replacement practices âpreserves appliance efficiency,â safety, âand longevity.â Professionalâ evaluation and use⣠of correct partsâ ensureâ that repairs restoreâ intendedâ function while minimizing⢠recurrent issues.
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