131758600 Frigidaire Control Timer is a timed control module used in Frigidaire household appliances to sequence operations and manage timed cycles. It is a control timer assembly-implemented either as an electromechanical cam-driven timer or an electronic timing module in different revisions-that provides time-based switching and user-interface functions rather than a simple momentary switch or sensor.
Inside the appliance, the control timer coordinates functions such as energizing heating elements, motors, solenoid valves and lamps, and it interfaces with user controls, power relays or contact sets, safety interlocks and feedback sensors (thermostats, thermistors or door switches). Its outputs switch line or control voltages to downstream components in the correct order and duration,and its inputs monitor user selections and safety conditions; correct timing and switching are therefore essential to ensure safe,predictable cycles and to prevent conflicts between subsystems.
In this article readers will find a technical overview of how the 131758600 timer operates, guidance on model and connector compatibility, common failure symptoms to watch for (for example: non-advancing or stuck cycles, intermittent operation, burned or pitted contacts, and erratic outputs), diagnostic approaches a technician can use (visual inspection, continuity and voltage checks at the timer motor and outputs, and isolation tests), and practical replacement considerations (verifying part number and harness fit, OEM versus aftermarket choices, mechanical alignment or cam indexing where applicable, safety precautions and post-replacement verification).
Table of contents
- Function and Role of the Control Timer in Wash Cycle Sequencing and Safety Interlocks
- How the 131758600 Frigidaire Control Timer Works: Internal Electronics, Motor Drive, and Control Logic
- Common Failure Symptoms: Electrical, Mechanical, and Timing Fault Indicators
- Compatibility and Replacement Considerations: Model Fitment, Diagnostic testing, and Installation Procedure
- Q&A
- Insights and Conclusions
Function and Role of the Control Timer in Wash cycle Sequencing and Safety Interlocks
The 131758600 Frigidaire Control Timer functions as the electromechanical sequencing element in manny Frigidaire washer models, using a small synchronous motor and cam-operated contact pack to route mains power to the fill valve, drive motor windings, drain pump, and heater at scheduled points in the wash program. It enforces safety interlocks by only energizing agitation or spin circuits when permissive inputs-lid/door switch, water-level or pressure switch, and temperature selectors-present the correct logic; if those inputs are satisfied but the timer contacts fail to close the corresponding outputs, the cycle will stall or behave incorrectly. Because the timer physically opens and closes multiple contact sets, common failure modes include worn cams, burned contacts, and a stalled drive motor, all of which produce measurable electrical symptoms rather than intermittent electronic logic faults.
Technicians should verify mechanical and electrical compatibility before replacing the timer: confirm the terminal layout, contact ratings, mounting geometry, and the voltage of the timer drive motor against the service documentation for the specific model. Useful diagnostic steps include measuring line voltage at the timer’s output terminals while manually advancing the timer or running a diagnostic cycle, checking continuity across cam-operated contacts in expected positions, and observing whether the timer motor receives supply when the cycle is supposed to advance.For practical context, a washer that fills but neither agitates nor drains frequently enough indicates the timer is not switching motor and pump outputs even though the lid and level switches are functioning; replacement requires correct alignment of cam positions and transfer of harness connectors to avoid miswired circuits.
- common field symptoms: no advance, continuous fill, loss of agitation, failure to enter spin.
- Typical failure causes: worn contacts, stalled timer motor, broken cam lobes, or incorrect replacement part.
- Diagnostic checks: voltage at timer outputs, continuity of contact sets, and physical inspection of cams.
| Item | description |
|---|---|
| Timer type | Electromechanical cam-and-contact assembly driven by a synchronous motor |
| Function | Sequentially directs mains power and enforces interlocks for fill, wash, drain, and spin |
How the 131758600 Frigidaire Control Timer Works: Internal Electronics, Motor Drive, and Control Logic
The 131758600 Frigidaire Control Timer integrates a compact motor-drive assembly with a mechanical cam stack and a small control circuit to sequence refrigeration events. A low‑speed timing motor or stepper turns a gearbox that indexes cams or sensors; those cams mechanically open and close switch contacts or trigger sensors on the PCB to energize outputs such as the compressor relay, evaporator fan, defrost heater, and ice maker solenoid. The internal electronics typically include a motor drive, timing network, output relays or triacs and basic protection components, so the timer both provides definite dwell intervals and enforces simple interlocks between functions.
Functionally, the timer acts as the appliance sequencer: if the motor fails to rotate, the cam stack will not advance and scheduled events (for example, a defrost cycle) will not occur; if contacts or output semiconductors degrade, the associated load may not be powered or may experience intermittent operation. Technicians verify operation by confirming drive motor voltage, manually advancing the rotor to observe contact closures with a metre, and comparing terminal pinouts against a replacement unit because compatibility depends on connector arrangement and the drive voltage/logic used. Common troubleshooting and inspection points include:
- Verify motor receives rated supply and rotates smoothly under light load.
- Check continuity across cam-operated contacts while advancing the mechanism manually.
- Inspect PCB for burned components, cracked solder joints, or corroded connector pins.
- Match replacement units by terminal mapping and motor drive type rather than part number alone when exact matches are unavailable.
| Item | Description |
|---|---|
| Motor/Drive | Low‑speed synchronous or stepper motor with gear reduction that indexes cams or a rotor sensor. |
| Control outputs | Switch contacts,relays or triacs that supply compressor,fans and defrost heater per cam position. |
| Common failures | Stalled motor, worn/burned contacts, failed driver components or connector corrosion. |
| Compatibility checks | Compare terminal layout, drive voltage and sequencing logic to ensure proper replacement fit. |
Common Failure Symptoms: electrical, Mechanical, and Timing Fault Indicators
The 131758600 frigidaire Control Timer is an electromechanical sequencing device that governs the order and duration of major appliance functions by switching power to motors, heating elements, valves, and relays at discrete positions. In many Frigidaire laundry and drying systems this timer advances either by a small synchronous motor or a stepped cam assembly; the physical cam profile and terminal layout determine which circuits are closed at each position. Replacement compatibility depends on matching the terminal configuration, drive voltage, mounting flange, and timing profile so that contacts operate in the same sequence and at the same intervals as the original unit.
Failure modes present as electrical faults (open or shorted contacts, burned terminals, intermittent continuity), mechanical faults (worn cams, stripped gears, seized advance motor), and timing faults (incorrect dwell times or mis-sequencing). Technicians typically verify symptoms by bench-advancing the timer while measuring continuity across the terminal groups, inspecting for visual signs of arcing or carbon tracking, and confirming the drive motor receives its rated supply. Practical examples include a washer that never advances past the fill cycle because switching contacts fail to close, or a dryer that skips timed cycles due to a slipping cam; these behaviors indicate whether the issue is contact wear, motor drive failure, or a mismatched replacement timer.
- Electrical: No power to downstream circuits, blown fuses, or intermittent operation due to open/shorted contacts.
- Mechanical: Timer will not advance or advances erratically as of worn gears or a seized drive motor.
- Timing: Incorrect cycle lengths or wrong sequencing leading to appliances that overheat, fail to agitate, or stop prematurely.
| Item | Description |
|---|---|
| Open contact | Measured continuity absent across a contact that should close at a given timer position; causes loss of function for that circuit. |
| Worn cam/gear | Mechanical slippage or failure to advance; often visible wear on plastic cams or stripped teeth on gears. |
Compatibility and Replacement Considerations: Model Fitment, diagnostic Testing, and Installation procedure
The 131758600 Frigidaire Control Timer is an electromechanical sequencing device that governs timed operations by routing line power through a cam-driven switch bank and a small synchronous motor or stepper. In operation it advances discrete contacts to energize heaters,motors,or solenoids in a prescribed order; failures of the timer typically manifest as stuck cycles,no advance,or intermittent contact closure. Compatibility is resolute by more than the part number alone: confirm the physical mounting, shaft length and orientation, connector type and pinout, and the electrical ratings of the motor and contacts. many Frigidaire models reuse the same timer assembly across a range of machines, but interchangeable fitment requires matching the mechanical interface and terminal layout to avoid miswiring or mechanical interference.
Technicians should perform a few targeted diagnostic checks before replacement to distinguish a failed timer from wiring faults, switches, or loads. Useful checks include verifying supply voltage at the timer motor terminal with the cycle command applied, measuring continuity across the cam-operated contact sets when the mechanism is advanced manually, and observing whether the motor advances under power; if the motor does not turn but line voltage is present, the motor or internal gears are likely defective. Installation procedure focuses on preserving alignment and wiring: record connector positions or photograph harness routing, transfer any drive collars or shafts in the same orientation, secure the timer mechanically to prevent binding, and verify correct terminal-to-function mapping before applying full power. Common symptoms and quick checks are summarized below.
- No cycle advance – check motor supply voltage and motor continuity.
- Stuck in one function or skipping steps – inspect cam contacts for pitting and measure continuity as the shaft is advanced.
- Intermittent operation – wiggle harness and recheck connectors for corrosion or loose pins.
| Item | Description |
|---|---|
| Motor supply | Measure voltage at the timer motor terminal under commanded run; confirm against product service data (commonly line-voltage in domestic units). |
| Contact continuity | With power removed, rotate the shaft and verify continuity across contact pairs that should close at each step. |
| Mechanical fit | Verify shaft length, mounting hole pattern, and connector type to ensure proper mechanical and electrical fitment. |
Q&A
What is the 131758600 Frigidaire control timer and what does it do?
The 131758600 is a Frigidaire OEM control timer-an electromechanical timing and switching assembly used to sequence functions on a range of Frigidaire appliances (washers/dryers/ranges depending on exact application). It uses a small synchronous motor and cam-operated switches to open and close circuits at the correct times for heating, motor runs, valves, pumps, or other functions. It is not normally user-programmable beyond selecting the appliance cycle or dial position.
How do I know if the timer is bad?
Common symptoms of a failing timer include: the appliance won’t advance through cycles, certain functions (heat, spin, pump, or motor) do not turn on or off when they should, intermittent operation, burning smell or visible damage on the timer housing, or the dial does not turn. Before condemning the timer, rule out fuses, door/lid switches, thermostats, sensors and wiring faults, because those can produce similar symptoms.
How can I test the 131758600 timer safely?
First disconnect power to the appliance. Visually inspect the timer for burnt contacts or melted plastic. With power off, use a multimeter to check continuity across switch terminals while manually advancing the timer dial to different positions (label or photograph wiring before disconnecting). With power restored (only if you are qualified and comfortable working live), verify that the timer motor receives the correct supply voltage (typically 120VAC in U.S. appliances) and the cam-operated contacts change state as the dial advances. If you are not experienced with live testing on mains voltage, hire a qualified technician.
Can the 131758600 timer be repaired or should it be replaced?
Minor issues (dirty/burnt contacts) can sometimes be serviced by cleaning or replacing contacts, but as timers are electromechanical and relatively inexpensive compared to labor, replacement with an OEM or exact-equivalent part is usually the recommended solution. Repair attempts should only be performed by a technician familiar with appliance controls; many timers are sealed or have complex cam assemblies that are difficult to service reliably.
How do I replace the timer and what tools are needed?
Typical replacement steps: disconnect power, remove the control panel or console screws to access the timer, photograph/label each wire to the existing terminals, pull the old timer out, install the replacement (aligning any mounting tabs), reconnect wires per your photos/labels, reassemble the panel, restore power and test. Tools usually needed: screwdriver set,needle-nose pliers,multimeter,and tape/labels. Always verify compatibility with your appliance model number and follow the appliance service manual. If you’re not comfortable working around mains voltage, hire a technician.
How do I confirm the 131758600 is compatible with my appliance model?
Check the appliance model number (usually on a tag inside the door, on the back or under the unit) and compare it to the parts compatibility lists from Frigidaire or reputable parts suppliers. Cross-reference the part number printed on the original timer. vendor pages and Frigidaire’s parts diagrams will list compatible models. Do not assume fitment without checking; connectors and mounting points can differ between years and configurations.
Are there any safety precautions I should follow when handling or installing this timer?
Always disconnect the appliance from electrical power before removal or inspection. For electric ranges/ovens, be aware of high-voltage and high-temperature areas; wait for components to cool. Label all wires before disconnecting.Avoid working on energized circuits unless you are trained and have proper test equipment and safety procedures. If you smell burning or see damaged wiring, keep power off and consult a technician.
Where can I buy a replacement 131758600 timer and are there aftermarket alternatives?
You can buy the 131758600 from Frigidaire authorized parts dealers, major appliance parts retailers, and many online marketplaces.OEM parts are recommended for guaranteed fit and function. Aftermarket equivalents exist, but verify terminal layout, motor voltage, and mounting to ensure a correct match. Keep receipts and test the part promptly so you can return it if it turns out to be incompatible or defective.
Insights and Conclusions
The 131758600 Frigidaire control timer serves as a central timing and sequencing component in compatible Frigidaire appliances, coordinating cycle functions and enabling reliable operation. Its proper functioning directly affects performance, energy use and the overall user experience by ensuring wash, dry or cycle stages occur at intended intervals and in the correct order. as an OEM-designated part, it contributes to appliance longevity and predictable behaviour when installed and maintained correctly.
Given its critical role, accurate diagnosis of timer-related symptoms is essential to avoid unnecessary repairs and to address the true root cause of failures. When testing and troubleshooting indicate a faulty 131758600 control timer, replacement with the correct, high-quality component-installed and verified according to manufacturer guidelines-helps restore safe, efficient operation and reduces the risk of recurring issues. Engaging qualified service personnel or following established diagnostic procedures is advisable to ensure the repair is appropriate and durable.
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