Frigidaire FFEW2426UW Wiring Diagram - Page 1

SERVICE DATA SHEET Electric Wall Oven with 3XX Electronic Oven Controls NOTICE - This service data sheet is intended for use by persons having electrical and mechanical training and a level of knowledge of these subjects generally considered acceptable in the appliance repair trade. The manufacturer cannot be responsible, nor assume any liability for injury or damage of any kind arising from the use of this data sheet. SAFE SERVICING PRACTICES To avoid the possibility of personal injury and/or property damage, it is important that safe servicing practices be observed. The following are examples, but without limitation, of such practices. 1. Before servicing or moving an appliance remove power cord from electrical outlet, trip circuit breaker to OFF, or remove fuse. 2. Never interfere with the proper installation of any safety device. 3. GROUNDING: The standard color coding for safety ground wires is GREEN or GREEN WITH YELLOW STRIPES. Ground leads are not to be used as current carrying conductors. It is extremely important that the service technician reestablish all safety grounds prior to completion of service. Failure to do so will create a potential safety hazard. 4. Prior to returning the product to service, ensure that: • All electric connections are correct and secure. • All electrical leads are properly dressed and secured away from sharp edges, high-temperature components, and moving parts. • All uninsulated electrical terminals, connectors, heaters, etc. are adequately spaced away from all metal parts and panels. • All safety grounds (both internal and external) are correctly and securely reassembled. Oven Calibration Set the electronic oven control for normal baking at 350°F. Obtain an average oven temperature after a minimum of 5 cycles. Press Stop/Clear/Cancel to end bake mode. Temperature Adjustment 1. Set EOC to bake at 550°F. 2. Within 5 seconds of setting 550°F, press and hold the bake pad for approximately 15 seconds until a single beep is heard (longer may cause F11 shorted keypad alarm). 3. Calibration offset should appear in the display. 4. Use the slew keys to adjust the oven temperature up or down 35°F in 5°F increments. 5. Once the desired (-35° to 35°) offset has been applied, press Stop/Clear/Cancel. Note: Changing calibration affects normal Bake mode. The adjustments made will not change the Self-Cleaning cycle temperature. Resistance Temperature Detector RTD SCALE Temperature °F (°C) Resistance (ohms) 32 ± 1.9 (0 ± 1.0) 1000 ± 4.0 75 ± 2.5 (24 ± 1.3) 1091 ± 5.3 250 ± 4.4 (121 ± 2.4) 1453 ± 8.9 350 ± 5.4 (177 ± 3.0) 1654 ± 10.8 450 ± 6.9 (232 ± 3.8) 1852 ± 13.5 550 ± 8.2 (288 ± 4.5) 2047 ± 15.8 650 ± 9.6 (343 ± 5.3) 2237 ± 18.5 900 ± 13.6 (482 ±7.5) 2697 ± 24.4 Probe circuit to case ground Open circuit/infinite resistance IMPORTANT DO NOT REMOVE THIS BAG OR DESTROY THE CONTENTS WIRING DIAGRAMS AND SERVICE INFORMATION ENCLOSED REPLACE CONTENTS IN BAG 807153806 Rev A EN (2018/01) Electric Oven Control Fault Description Fault Likely Failure Conditon/ Suggested Corrective Action Code Cause F10 Runaway temperature Oven heats when no cook cycle is programmed. If Oven is cold: 1. If fault code is present with cold oven test oven temperature sensor probe circuit resis- tance. Use RTD scale found in the tech sheet. 2. Replace probe or repair wiring connections if defective. 3. If temperature sensor probe circuit is good but fault code remains when oven is cold, replace the EOC. If Oven is overheating: 1. If oven is severely overheating/heating when no cook cycle is programmed test oven temperature sensor probe circuit resistance using the RTD scale found in the service tech sheet. Also verify that the temperature sensor probe in properly installed in the oven cavity. 2. Disconnect power from the range, wait 30 seconds and reapply power. If oven continues to heat when the power is reapplied, replace the EOC. NOTE: Severe overheating may require the entire oven to be replaced should damage be extensive. F11 Shorted keypad or selec- 1. Reset poor supply to range - Disconnect power, wait 30 seconds and reapply power. tor switch 2. Check/ reset ribbon harness connections between touch panel and EOC. 3. Test keyboard circuits. Replace touch panel if defective. 4. If keyboard circuits check good, replace the EOC. F13 Shorted oven sensor probe circuit. 1. Disconnect power, wait 30 seconds and reapply power. If fault returns upon power-up, replace EOC. F14 Keyboard tail failure 1. Check for damage to the ribbon connection or that it is plugged in properly. F30 Open oven sensor probe 1. (F30) Check resistance at room temperature & compare to RTD Sensor resistance chart. circuit. If resistance does not match the RTD chart, replace RTD Sensor Probe. Check Sensor F31 Shorted oven sensor probe circuit. wiring harness between EOC & Sensor Probe connector. 2. (F31) Check resistance at room temperature, if less than 500 ohms, replace RTD Sen- sor Probe. Check for shorted Sensor Probe harness between EOC & Probe connector. If resistance is correct, replace the EOC. F90 Door lock motor or latch If lock motor runs: F91 circuit failure. 1. Test continuity of wiring between EOC and lock switch on lock motor assy. Repair if needed. F92 2. Advance motor until cam depresses the plunger on lock motor switch. Test continuity of switch contacts. If switch is open replace lock motor assembly. F93 3. If motor runs and switch contacts and wiring harness test good, replace the EOC. F94 If lock motor does not run: 1. Test continuity of lock motor windings. Replace lock motor assembly if windings are open. F95 2. Test lock motor operation by using a test cord to apply voltage. If motor does not operate, replace lock motor assy. 3. If motor runs with test cord check continuity of wire harness to lock motor terminals. If harness is good, replace the EOC. Tech Sheet Abbreviations and Terminology EOC Electronic Oven Control ESEC Electronic Surface Element Control PS Power Supply Board (PS1, PS2, etc.) RTD Resistance Temperature Device (Temp Probe or Temp Sensor) TCO Thermal Cut Out also "Thermo Disc" or "Thermal Limiter" TSEC Touch Sensor Electronic Control TST Touch Sensor technology (touch control glass panel ) UIB User Interface Board VSC Variable Speed Control