131758600 Frigidaire Control Timer is a timed control module used to sequence and switch appliance functions; as a part it serves as the central timing and logic element that governs cycle progression. Depending on the appliance design, this component is implemented as a timer assembly or control board with discrete switching contacts or electronic outputs, a mounting flange and multi‑pin connector that interfaces with the appliance wiring harness. The part number identifies the specific timer variant used by Frigidaire for certain models and provides a reference for compatibility and replacement.
Inside an appliance the control timer manages the order and duration of events such as motor run intervals, heater or element energization, valve actuation, pump operation and interlock timing.It interacts directly with power circuits, relays or solid‑state switches, input sensors (thermostats, lid/door switches, water level sensors), and the user control interface to enforce safe sequencing and detect abnormal conditions. Accurate timing and reliable contact or output performance are essential because misoperation of the timer can cause incomplete cycles, safety trips, or component damage.
In this article you will learn how the 131758600 control timer functions, how to verify compatibility with specific Frigidaire models, common failure symptoms to watch for (for example stuck cycles, no startup, intermittent outputs, or burned contacts), basic diagnostic procedures and electrical tests a technician can perform, and practical considerations for safe replacement (matching part numbers, connector pinouts, mechanical alignment and post‑replacement testing). The guidance emphasizes objective technical checks and wiring verification to help technicians, engineers and appliance owners make informed repair decisions.
Table of Contents
- Function and Role of the Control Timer Assembly: Timing Logic, Power Distribution, and User Interface Responsibilities
- How the 131758600 Frigidaire Control Timer Works: Internal Components, Signal Flow, and Electrical Schematic
- Common failure Symptoms and Measurable Fault Indicators for Control Timer Malfunction
- Compatibility, Model Fitment, Replacement Procedures and Step‑by‑Step Troubleshooting for the 131758600 Frigidaire Control timer
- Q&A
- Final Thoughts
function and Role of the Control Timer Assembly: Timing Logic, Power Distribution, and User Interface Responsibilities
The 131758600 Frigidaire control Timer serves as the central sequencing device that advances cycle stages and routes line voltage to the washer’s or dryer’s subsystems. In practical terms,the control timer implements the timing logic that determines when the motor,valves,heater,and pump receive power,and it provides the user interface mapping (knobs,cams,or electronic switches) that translates user selections into a specific sequence. The timer accomplishes these tasks by switching contacts or electronic switches at predefined intervals; this power distribution function is what causes individual components to run only during their intended portions of a cycle and provides the electrical isolation needed for interlocks and safety circuits.
behavioral characteristics and compatibility considerations are important for service technicians: timers can be electromechanical (synchronous motor driving switch cams) or electronic (PCB-based with relays or triacs), and replacement units must match terminal layouts, indexing positions, and mounting points to ensure proper sequencing. Common field symptoms of timer faults include failure to advance cycles, intermittent operation of a single function (e.g., pump runs but motor dose not), or burned contacts causing erratic behavior; diagnostic steps include checking for correct supply voltages at the timer terminals, continuity across expected switch contacts during specific timer positions, and visible wear on cam-driven contacts. Examples of responsibilities and points of inspection are listed below.
- Sequence control for motor, pump, heater, and valves
- Switching of mains voltage to subsystems and interlocks
- User selection mapping and position indexing
- Integration with safety circuits and door/lid switches
- Diagnostic access points for voltage and continuity checks
| Item | Description |
|---|---|
| Timing element | Synchronous motor or electronic timer chip that advances positions |
| Switch contacts | Mechanical cams or relays/triacs that route power to components |
| Connector/terminal layout | Pin/terminal mapping that must match the appliance harness for compatibility |
How the 131758600 Frigidaire Control Timer Works: Internal Components, Signal Flow, and electrical Schematic
The 131758600 Frigidaire Control Timer is an electromechanical timing module that coordinates the sequence of cooling and defrost cycles by physically switching mains power to the refrigerator’s subsystems. Internally it typically contains a small drive motor (synchronous or stepper),a reduction gear train,a cam-operated switch bank and,on hybrid variants,a small printed circuit for indicator lights or low-voltage sensing. in normal operation a constant line feed enters the timer common and the rotating cams close individual switch poles at set angular positions,routing power to the compressor,evaporator fan,defrost heater or damper as required. Such as, when the timer advances to the defrost position it opens the compressor feed and closes the heater feed so the heater receives line voltage while other loads are isolated; the return from the heater is frequently enough routed through a defrost thermostat that can interrupt the heater circuit if the temperature threshold is reached.
The simplest way to represent the timer on an electrical schematic is a single-line showing line (L) coming into the timer common, individual switched lines leaving to each load, and shared Neutral (N) return to the appliance chassis loads. Technicians troubleshoot the unit by verifying motor drive voltage, checking continuity across cams at known positions, and confirming that the switch bank routes line voltage to the expected outputs during each cycle. Compatibility is persistent by matching terminal layout, mounting geometry and connector pinouts; physically similar timers may have different cam sequencing or contact assignments, so replacements should be verified against the appliance wiring diagram.Common signals and features encountered on this timer include the following:
- Switched compressor feed (cooling cycle)
- Defrost heater feed with thermostat termination
- evaporator fan and damper control outputs
- Synchronous motor/drive feedback for position advancement
- Connector/harness interface for OEM compatibility
| Item | Description |
|---|---|
| Drive motor | Provides rotational motion to advance cams; verify rated voltage and continuity |
| cam switch bank | Multiple poles that open/close line feeds to loads at set positions |
| Gear train | Reduces motor speed and establishes timed intervals |
| Connector/harness | Pinout and mounting must match appliance harness for correct wiring |
| Optional PCB | Provides indicators or low-voltage sensing on hybrid timer variants |
Common Failure Symptoms and Measurable Fault Indicators for Control Timer Malfunction
The 131758600 Frigidaire control Timer is an electromechanical sequencing device that provides timed switched power to heaters,motors,valves and sensors in Frigidaire laundry and cooking appliances.It contains a small synchronous motor and a cam-operated switch stack; failures typically manifest as the timer motor not advancing, cycle steps not being energized, intermittent or erratic switching, audible grinding or clicking, or visible pitting and burnout on contact surfaces. Compatibility is determined by the appliance model and connector/pin layout, so technicians should confirm the harness fit and terminal assignments before assuming the timer is at fault.
Diagnostic verification relies on measurable electrical and mechanical indicators rather than subjective symptoms. Use a multimeter to check for AC supply to the timer motor during a running cycle, measure coil continuity (an open/infinite reading indicates a failed motor windings), and observe switch contact continuity while manually advancing the cam stack; voltage present at the input terminals but no contact closures points to internal switch failure. Practical examples: a dryer that never advances to the heat position may show steady mains voltage to the timer motor but no rotation (seized motor or stripped gear), while a washer that skips agitation steps may show intermittent contact closures when the cam passes – captured as rapidly changing continuity readings on the meter.
- Open motor coil: infinite resistance between motor terminals.
- No motor voltage during cycle: absent AC at motor input terminals.
- Contacts stuck open/shorted: expected continuity not present at specific cam positions.
- Excessive motor current or no rotation: motor windings shorted or mechanical seizure.
- Intermittent continuity when advancing: worn cams or intermittent switch contacts.
| Item | Description |
|---|---|
| motor continuity | Check with ohmmeter; open = failed winding,near short = internal damage. |
| Switch contact behavior | Manually advance cam and verify expected contact closures with a continuity tester or voltmeter under powered conditions. |
Compatibility, Model Fitment, Replacement Procedures and Step‑by‑Step troubleshooting for the 131758600 Frigidaire Control Timer
The 131758600 Frigidaire Control Timer functions as the sequencing element that routes mains power to motors, valves, heaters and ancillary switches according to the selected program. Mechanically and electrically it behaves like a multi‑contact switch assembly: internal cams or an indexing motor cause individual contacts or micro‑switches to close and open in a defined order so that the appliance advances through soak, agitate, drain and spin phases (or their equivalents in other appliances). Proper fitment requires matching the part number to the appliance model and confirming physical details – mounting footprint, shaft orientation, harness connector type and terminal labeling – as a visually similar timer with different terminal assignments or drive direction can energize circuits out of sequence and produce intermittent operation or damage other components.
Replacement and fault isolation proceed with standard electrical troubleshooting and mechanical inspection: isolate mains, remove the access panel, document and label each harness connector, test contact continuity through timer positions and inspect cams/contacts for burning or corrosion, then swap the unit and verify correct sequence under no‑load conditions. Typical diagnostic steps include checking for continuity between specific terminals when a cam is in the closed position, measuring the timer motor winding for an expected low resistance that indicates a healthy drive, and confirming that external sensors or interlocks (door switches, pressure switches) are not preventing advance. The list below outlines a practical stepwise approach a technician can use in the field, and the compact reference table summarizes the key fitment and symptom cues to check before ordering a replacement.
- Disconnect mains power and lock out before starting any work.
- Remove access panel, photograph and label connector positions to preserve wiring sequence.
- Inspect timer cams and contacts for pitting, burn marks or mechanical binding; rotate the timer shaft manually to feel for smooth indexing.
- use a multimeter to check continuity between terminal pairs as the timer advances; verify timer motor winding resistance is present and not open.
- Reinstall new unit, reconnect harness exactly as labeled, then perform a no‑load cycle to confirm correct sequencing before full use.
| Item | Description |
|---|---|
| Typical supply / interface | AC mains switched by internal contacts; verify supply voltage and terminal pinout against appliance wiring diagram. |
| Mounting / mechanical fit | Match screw pattern, shaft orientation and tractor‑type connector location to ensure proper engagement. |
| Common fault symptoms | No advance, stuck cycle, intermittent operation, or energizing incorrect circuits – often caused by worn contacts or miswired replacement. |
Q&A
What is the 131758600 Frigidaire control timer and what does it do?
The 131758600 is an electronic control/timer assembly used on certain Frigidaire ovens and ranges. It provides the clock/timer display, user interface (buttons/knobs), and the control logic that energizes oven functions such as bake, broil, convection, and timed cook. In short, it acts as the ”brain” that receives user commands and switches power to the heating elements or other oven circuits.
How do I know if the control timer is bad?
Common symptoms of a failing control timer include a blank or flashing display, non-responsive buttons, inability to start bake/broil cycles, oven not heating despite correct settings, or persistent error codes on the display. To confirm, first verify incoming line voltage and fuses/breakers are good, then check whether the control is sending voltage to the element terminals when a function is selected. If the control does not switch the appropriate outputs while receiving correct inputs, the control is likely faulty. Exercise caution: live-voltage testing should be done by someone experienced or a technician.
Can I replace the 131758600 myself, and what precautions should I take?
Yes, a competent DIYer can replace the control timer, but you must disconnect power to the appliance at the breaker first. Typical steps: remove the oven back or control panel to access the module, note or photograph wire harness locations, unplug connectors or remove spade terminals, transfer any mounting brackets, and install the new unit. Avoid pulling on wires,and ensure all connectors are fully seated.if you are not pleasant working around electrical components or live testing, hire a qualified appliance technician.
How do I test the new or existing control timer to verify it is indeed working after replacement?
After installation and restoring power, verify the display and buttons respond, set the clock, and perform a simple bake test. With the oven set to bake, measure for voltage at the bake element terminals (normally the control switches 240 V across the L1/L2 lines or provides voltage to the element depending on model). If the element gets the correct voltage and does not heat, the element might potentially be faulty. If the control never applies voltage while in a valid heating mode, it indicates a control issue. Only perform live voltage checks if you know proper safety procedures.
How do I confirm this part is compatible with my Frigidaire model?
Do not rely solely on the part number. Confirm compatibility by checking the appliance model number (usually on a tag behind the oven door, on the frame, or on the back panel) and cross-referencing that model with the part number in Frigidaire’s parts lookup or a trusted parts supplier. Some controls look identical but have different connectors, harnesses, or firmware. When in doubt, use the OEM part lookup or contact Frigidaire support.
Will replacing the control timer fix temperature accuracy or calibration issues?
Not necessarily. If the oven is off by several degrees, the cause is often a faulty temperature sensor/thermistor, a bad heating element, or an airflow/door-seal issue rather than the control. The control interprets the sensor signal; if the sensor is accurate and the control is functioning, temperature calibration can sometimes be adjusted in the oven settings. Replace the control only after verifying the sensor and elements are within specification.
Are there common installation pitfalls or things technicians should watch for?
Yes.Common pitfalls: not transferring or seating grounding straps, misrouting or misconnecting wire harnesses, failing to secure the control bracket so it vibrates loose, and not checking for updated wiring revisions or jumper configurations for specific models.Also verify that connectors are fully pushed on and that ribbon cables or spade terminals are not damaged. Always use correct torque for screws and restore all protective panels before testing.
Does the 131758600 come with a warranty and are there aftermarket alternatives?
Warranty coverage depends on the seller: genuine Frigidaire OEM parts sold through authorized channels typically include a limited warranty (check the vendor for length and terms). Aftermarket or remanufactured controls are available and can be less expensive, but may have different warranties and varying reliability. For long-term reliability and compatibility, many technicians recommend using the OEM part that exactly matches the original part number and connector layout.
Final Thoughts
The 131758600 Frigidaire control timer serves as a central timing and coordination component within the appliance, regulating cycle sequencing, signaling other control elements, and contributing directly to consistent performance and efficient operation. Because it helps determine the start,duration,and transition of functions,a properly functioning control timer is important for maintaining cycle accuracy,energy use,and reliable user outcomes.
Accurate diagnosis and timely replacement of a failing 131758600 control timer protect overall appliance reliability and can prevent secondary damage or safety risks. Confirming the root cause-through systematic troubleshooting or professional evaluation-avoids needless parts changes, ensures compatibility, and supports effective repairs. When replacement is required, using the correct part and following manufacturer guidance or employing a qualified technician helps restore intended operation and minimizes repeated service needs.
Professional Appliance Service
If your appliance requires professional diagnosis or repair, visit
Revolff Home Services
for expert appliance repair services.
For local appliance service information see
Dryer repair Henderson
.
Replacement parts for many appliance models can also be found at
Reliable-Parts-Hub
.
