The 131758600 Frigidaire Control Timer is a control-timer assembly used in select Frigidaire laundry appliances; it functions as the cycle sequencer that directs timed electrical outputs to motors,valves,pumps and heaters. In physical form it might potentially be implemented as an electromechanical cam-type timer or an electronic control module depending on the appliance generation, but its basic role is the same: provide sequenced switching and timing logic to advance wash or dry programs and to coordinate ancillary functions such as door interlocks and sensors.
Inside the appliance the control timer acts as the central timing and sequencing node, receiving inputs from the user interface, position sensors, temperature or water-level sensors and safety interlocks, and then switching power to actuators (drive motor, drain pump, water inlet valves, heaters, etc.) at the correct times. It typically interfaces with low-voltage control circuits and line-voltage loads through relays, triacs or mechanical contacts, and is responsible for enforcing program logic, dwell times, and the transitions between fill, agitate, drain, spin or dry cycles. As it coordinates multiple subsystems, its correct operation is critical to both functional performance and safety interlocks of the appliance.
This article will describe the 131758600 control timer’s functional principles, common compatibility and model applications, typical failure symptoms and diagnostic indicators, practical troubleshooting steps and multimeter tests, and key considerations for replacement and calibration. Readers can expect guidance on distinguishing mechanical from electronic timer faults, interpreting wiring diagrams, verifying inputs and outputs, and safe handling and installation practices to restore correct cycle sequencing.
Table of Contents
- Function and Role of the 131758600 frigidaire Control Timer in Cycle Sequencing and Safety Interlocks
- Internal Architecture and signal Flow of the Control Timer Inside the Appliance
- Common Failure Symptoms, Error Codes, and Measurable Fault Conditions
- Replacement Considerations, Compatible Models, and Step-by-Step Installation Notes
- Q&A
- To Conclude
Function and Role of the 131758600 Frigidaire Control Timer in Cycle Sequencing and Safety Interlocks
The 131758600 Frigidaire Control timer is a mechanical-electrical sequencing device that governs the timed progression of wash cycles and coordinates power to key subsystems. Internally it uses a synchronous motor driving a cam assembly and multiple cold-contact switches; as the cam rotates it opens and closes contacts in a specific sequence to start the motor, actuate pumps, energize heaters or solenoids, and engage the spin circuit. technicians should verify wiring harness pinouts and mounting footprint when replacing the timer, as the part interfaces directly with model-specific connectors and chassis ground paths and incorrect fits can leave interlocks inactive or create unsafe electrical paths.
In practical operation the timer also enforces safety interlocks by withholding circuit closure until sensors report safe conditions: for example,a lid/door switch or water-level switch must be satisfied before the timer advances to spin or drain positions. If a downstream safety switch fails open, the timer will remain in a hold position or recycle through a drain interval rather than applying power to the drive motor; conversely, a stuck timer contact can mimic a failed interlock and prevent cycle advancement. common diagnostic checks include observing cam position at key steps, measuring continuity across the timer contacts during transitions, and confirming that the timer motor receives steady line voltage; replacement is warranted when mechanical wear causes slipping cams, intermittent contact, or when the timer motor fails to maintain synchronous speed.
- Primary functions: timed sequencing of motors, pumps, heaters, and valves.
- Safety role: prevents motor or heater energization until interlocks (lid, water level, door lock) report safe states.
- Behavioral symptoms of failure: stuck cycles, intermittent operation, or failure to advance to spin/drain.
| Item | Description |
|---|---|
| cam contacts | Mechanical switches opened/closed by the cam to route mains power to subsystems at defined times. |
| Timer motor | Synchronous motor that advances the cam at a controlled rate; loss of speed prevents proper sequencing. |
Internal Architecture and Signal Flow of the Control Timer Inside the Appliance
the internal architecture of the 131758600 Frigidaire Control Timer combines a timing drive, switch pack, and interface circuitry to sequence appliance functions. A small synchronous or step motor rotates a geartrain and cam assembly; cams mechanically actuate a bank of switches (or trigger optical/ magnetic sensors on electronic variants) to route line voltage or low-voltage control signals to heaters, valves, motors, and pumps. In controllers that include a printed circuit board, a microcontroller coordinates the motor pulses, monitors end-of-cycle sensors, and drives output relays or triacs rather of purely mechanical contacts. Signal flow is deterministic: user input or a start signal energizes the timer motor or MCU, the cam position changes over time, corresponding contacts close/open, and power is directed to the intended subsystem (for example switching from fill and wash to drain and spin in a washer). This sequenceable switching makes the unit a central timing hub rather than a simple on/off relay.
- Motor and geartrain: provides rotational timing force and position indexing.
- Cam-operated switch pack or sensors: defines discrete connect/disconnect events.
- Control PCB (if present): handles logic, sensor inputs, and solid-state or relay outputs.
- Terminal block and harness: electrical interface to appliance subsystems and user controls.
Understanding behavior and compatibility helps diagnose failures and select replacements: verify that terminal layout, cam orientation, and mounting points match the appliance harness before installing a replacement timer, and confirm expected control voltages (commonly 120 VAC for motor-driven timers or low-voltage logic for electronic modules). Fault symptoms such as a timer that does not advance,stuck contacts,or intermittent power to a heater typically indicate motor failure,worn cam lobes,or burned switch contacts; troubleshooting steps include measuring motor supply continuity,checking switch continuity at specified cam positions,and observing whether the PCB drives expected outputs.For practical repair work, refer to terminal numbering on the original unit and use known-good cycle positions to map which contacts should be closed during each state; this mapping allows technicians to determine whether the fault is in the timer mechanism or downstream wiring/components.
| Item | Description |
|---|---|
| Drive motor | Rotates cams; typically AC synchronous or stepper,supplies indexed movement |
| switch pack / sensors | Cam-operated contacts or opto sensors that route power to appliance circuits |
| Control PCB | Optional microcontroller and output drivers for electronic timing and diagnostics |
| Terminal block | Connector grouping that must match appliance harness for compatibility |
Common Failure Symptoms,Error Codes,and Measurable Fault Conditions
The control timer coordinates timed switching of line voltage to heating elements,fans,and auxiliary circuits; in many Frigidaire ranges the OEM part 131758600 Frigidaire Control Timer contains the synchronous timing motor,cam-driven contacts,and the relay/PCB assembly that executes those commands. Typical failure modes of the timer manifest as contact welding, worn cam or motor slippage, or PCB relay/channel faults that prevent proper sequencing. Compatibility is persistent by the harness, mounting pattern, and signal/voltage levels – technicians should confirm the model number on the appliance and compare connector pinouts before replacement. Physically, a failed timer can produce the same symptoms as a failed relay or harness problem, so isolate the module from the wiring harness when verifying component-level behavior.
Measurable fault conditions and error codes often correlate to observable electrical readings and contact behavior rather than ambiguous messages alone.Practical diagnostics include confirming AC mains at the timer input, verifying that the timer advances when supplied with rated voltage, checking continuity across the switched contacts while commanding a cycle, and monitoring load-side voltage during a call for heat; common measurable faults are open contacts under load, shorted relay outputs, excessive leakage to ground, or no rotation of the timing motor. use the appliance service sheet or wiring diagram to map expected signals to timer pins and record any error codes displayed by the oven control,then correlate those codes with failed switching or timing behaviors during bench tests.
- No heat or no cycle progression (timer contacts open or motor stalled)
- Continuous heat or element never de-energizes (contacts welded/shorted)
- Erratic cycling or mis-timed functions (worn cams, intermittent relay contact)
- Display error codes or lockouts that coincide with failed switching events
| Item | Description |
|---|---|
| Contact continuity | Check for continuity when the timer is commanded; lack of switching indicates contact or coil failure |
| Supply & load voltage | Measure mains at timer input and load-side output during a cycle to confirm proper switching |
Replacement Considerations, Compatible Models, and Step-by-Step Installation Notes
131758600 Frigidaire Control timer is an electromechanical sequencing device that routes mains and control voltages to motors, solenoid valves, heaters, and indicators according to a cam-driven contact bank. The unit’s behavior is defined by its cam profile and contact arrangement: as the internal drive advances, specific sets of spade terminals close or open to energize subsystems in a timed order.For troubleshooting and replacement, verify terminal continuity and the presence of the synchronous drive signal, confirm the direction of rotation and cam index position, and ensure the replacement matches the original terminal layout and mounting orientation to preserve correct sequence timing and safety interlocks.
Compatibility depends on physical mounting, terminal configuration, and electrical ratings rather than brand alone; many Frigidaire models share control timers with differing faceplates or knob shafts, so cross-reference the part number and the appliance’s model/serial tag. practical installation follows standard appliance-service practice: de-energize the appliance,document and label every connection,compare the new timer’s terminal map against the service schematic,and perform an initial powered functional check using a controlled diagnostic cycle while monitoring for correct switching,abnormal noise,or excessive current draw. Use a multimeter to confirm expected switching of outputs during the cycle and re-secure panels and connectors to original torque and insulation specifications before returning the unit to service.
- Disconnect mains power and lock out before beginning work.
- photograph and label each wire location to ensure accurate reconnection.
- Measure continuity and drive motor supply on the old timer to confirm failure mode.
- Match replacement terminal layout and rotation index prior to mounting.
- Reinstall,restore power,run a test sequence,and monitor voltages and currents.
| Item | Description |
|---|---|
| Part Number | 131758600 Frigidaire Control timer |
| typical Voltage | 120 VAC control supply (verify label on unit for exact rating) |
| Terminals | Multiple spade/tab outputs; number and function vary by cam/contact arrangement |
| Compatibility | Verify against appliance model/serial and OEM cross-reference; physical fit and terminal mapping must match |
Q&A
What is the Frigidaire part 131758600 control timer and what functions does it perform?
Part 131758600 is the control/timer assembly used on some Frigidaire ranges and wall ovens. It houses the clock/timer and the control electronics that manage user inputs and timed functions (clock, minute-timer, delayed start, etc.) and interfaces with the oven control relays.In short, it is the user-facing timing/clock module and associated control circuitry that helps schedule and run oven functions.
What are common symptoms that indicate the 131758600 control timer is failing?
Typical symptoms include: the clock/timer won’t keep time or display is blank, the timer/clock functions don’t respond, oven or bake/convert functions won’t start when selected, intermittent or erratic behavior of timed cycles, display shows unusual characters, or the oven fails to follow programmed delayed-start or timed shutoff. These symptoms can also be caused by loose connections, a blown fuse, or other control components, so diagnosis is needed.
How can I test whether the control timer (131758600) is the cause of the problem?
Start with a visual inspection for burnt components, corrosion, or damaged connectors. Check appliance fuses and main power supply voltage. With the power off, verify harness connectors are tight and wires intact. For electrical testing (live voltage testing requires experience): restore power and verify the control supplies the expected output voltage to the oven relays/elements when a bake or broil function is requested. If the display is dead, measure incoming line voltage to the control – if present but the control does not respond, the control is likely faulty. If you are not cozy working with live mains voltage, have a qualified technician perform the tests.
Can I replace the 131758600 myself, and what are the basic replacement steps?
Yes, a mechanically competent DIYer can replace it, but always disconnect power at the breaker first. Basic steps: 1) Turn off power at the breaker and confirm power is off. 2) Remove any trim or back panel to access the control assembly. 3) Document or photograph wire locations, then disconnect the wire harnesses and any ribbon cables. 4) Remove mounting screws and remove the old control/timer. 5) Install the new unit, reconnect harnesses exactly as removed, secure mounting, and restore power. 6) Test all functions. If you are unsure about electrical safety or wire identification,hire a technician.
After replacing the control timer, do I need to program or calibrate the oven?
After installing a new control/timer you will usually need to set the clock and re-enter any user preferences (24/12 hour, chimes, etc.). if your oven has a temperature calibration (oven temperature offset) that was previously adjusted,you may need to reconfigure that setting per the owner’s manual. Some advanced models may require running a self-test or diagnostics procedure – consult the specific service or owner’s manual for exact steps.
Will replacing the control timer fix error codes or oven heating problems?
Possibly, but not always.Some error codes indicate control/timer faults and replacing the control can clear those and restore operation. However, many errors (high-temperature, sensor/thermistor faults, door lock, or wiring faults) are caused by other components. Always read the specific error code and trace the fault (sensor, wiring, thermal fuse, relays) before replacing the control as a first step.
What tools and safety precautions should I follow when servicing the control timer?
Tools: screwdriver set,nut drivers,multimeter,needle-nose pliers,and a camera/phone to document wiring. Safety: disconnect power at the breaker and verify with a meter, discharge any capacitors if present, avoid working on live circuits unless qualified, label or photograph all connectors before removal, handle the new control by its edges (avoid static-sensitive components), and ensure all wiring and grounding are restored before powering up. if in doubt, hire a licensed appliance technician.
How much does the 131758600 control timer and replacement labor typically cost?
Parts prices vary by supplier and region; the control itself typically ranges from a modest retail price to higher depending on availability and aftermarket vs OEM. Labor for a technician to diagnose and replace a control is commonly 1-2 hours, but rates vary by service company. For an accurate estimate, check parts suppliers for current pricing and request a labor estimate from a local appliance repair service.
To Conclude
The 131758600 Frigidaire control timer serves as a central timing and sequencing component, coordinating a range of oven and range functions to ensure accurate cycles, consistent performance, and safe operation. As the interface between user inputs and appliance actions,a properly functioning control timer helps maintain predictable cooking results,efficient energy use,and reliable execution of features such as timed bake,self‑clean cycles and automatic shutoffs.
Because symptoms of a failing control timer can mimic other electrical or component issues, careful diagnosis is essential before replacement.Verify basic power and wiring, review error codes and diagnostic modes where available, and isolate the control timer as the source of malfunction.When replacement is required,use the correct OEM part number (131758600) and follow safety procedures and manufacturer instructions; consider engaging a qualified technician for electrical verification and installation to avoid additional damage or safety risks.
Ultimately, timely and accurate identification of a faulty 131758600 control timer, followed by proper replacement and installation, helps restore expected appliance performance, prolongs service life, and maintains safe operation. A methodical, documented approach to diagnosis and repair provides the best outcome for both functionality and long‑term reliability.
Professional Appliance Service
If your appliance requires professional diagnosis or repair, visit
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Replacement parts for many appliance models can also be found at
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