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Frigidaire 27" Dryers with electronic controls Service Manual

Gas and electric 27” dryers with electronic controls
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SERVICE MANUAL
27" Dryers
Gas & Electric
Models with

Electronic Controls

November 2003
5995393146
1

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Table of Contents
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  Summary of Contents for Frigidaire 27" Dryers with electronic controls

  • Page 1: Electronic Controls

    SERVICE MANUAL 27” Dryers Gas & Electric Models with Electronic Controls November 2003 5995393146...
  • Page 2: Safe Servicing Practices

    SAFE SERVICING PRACTICES - ALL APPLIANCES To avoid personal injury and/or property damage, it is important that Safe Servicing Practices be observed. The following are some limited examples of safe practices: 1. DO NOT attempt a product repair if you have any doubts as to your ability to complete it in a safe and satisfactory manner.
  • Page 3: Table Of Contents

    SAFE SERVICING PRACTICES QUICK REFERENCE SHEET 7 - 11 Serial nameplate location Serial number breakdown Tech sheet location Failure codes On line test Specification Component resistance chart Sample wiring diagrams 12 - 13 Sample wiring diagram for electric models Sample wiring diagram for gas models SECTION A - OPERATING INSTRUCTIONS 14 - 17 Before operating your dryer...
  • Page 4 SECTION C - INSTALLATION INSTRUCTIONS GAS & ELECTRIC DRYER 27 - 36 What to do if you smell Gas Pre-installation requirements Tools and materials required for installation Electrical requirements Electric dryers Gas dryers Exhaust system requirements Exhaust directions Exhaust duct locating dimensions Gas supply requirements Location of your dryer Do not install your dryer...
  • Page 5 Short unrestricted vents Electrical operation (Electric dryers models) 42- 44 Electronic control board circuits Drive motor circuit Temperature sensing circuit The heating circuit Drying time Electrical Operation (Gas Dryers Models) 44 - 47 Electronic control board circuits Drive motor circuit Temperature sensing circuit The heating circuit Drying time...
  • Page 6 Removing the thermal limiter (Electric dryers) Removing the heating element assembly (Electric dryers) Removing the control thermistor Removing the blower housing and fan blade Removing the idler pulley Removing the idler pulley assembly Removing the drive motor Removing the burner (Gas dryers) Removing the ignitor (Gas dryers) Removing the gas valve assembly (Gas dryers) Removing the gas valve coils (Gas dryers)
  • Page 7: Quick Reference Sheet

    QUICK REFERENCE SHEET 1. Serial nameplate location: on the front panel at the left side of the dryer door opening. 2. Serial number breakdown. X D 3 2 3 0 4 2 4 7 Incremented unit number Production week Last digit of production year Product identification Manufacturing Facility 3.
  • Page 8: Failure Codes

    QUICK REFERENCE SHEET Display shows: F 04 Failure codes: Indicates: The drying time has exceeded the pro- Display shows: F 01 gram time for that cycle. Indicates: An internal fault in the control. Correction: Touch the Stop/Clear pad. Program the dry for a NORMAL CYCLE with HIGH Correction: Touch the Stop/Clear pad.
  • Page 9 QUICK REFERENCE SHEET 2. Touch the start pad and the test will advance to the HEAT test. (H) will appear in the display, the drive motor will run and the electric heating element or gas burner will operate depending on the model. 3.
  • Page 10: Specification

    QUICK REFERENCE SHEET SPECIFICATION ELECTRIC MODELS GAS MODELS Electrical Volts 120/208 or 120/240 120/208 or 120/240 Amps (circuit) Motor wattage 160-350 Watts 160-350 Watts Heat input (Watts @ 240 VAC) 3200/4500 Heat input (BTU/Hr.) 20,000 Auto. Elec. Ignition Drum Size (Cu. Ft.) Finish Power Paint Epoxy Power Paint Epoxy...
  • Page 11: Component Resistance Chart

    QUICK REFERENCE SHEET Gas Models Component Resistances* Electric Models Drive motor (120 volt, 60 Hz, 1/4 h.p. 1725 rpm) 4.5 Ohms Motor Start Winding 4.5 Ohms 3.8 Ohms Motor Run Winding 3.8 Ohms Heating Element 12.8 Ohms 50,000 Ohms Control Thermistor 50,000 Ohms Burner Assembly 50 - 400 Ohms...
  • Page 12: Sample Wiring Diagrams

    SAMPLE WIRING DIAGRAM FOR ELECTRIC MODELS CAUTION: DISCONNECT ELECTRIC CURRENT BEFORE SERVICING. LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION. VERIFY PROPER OPERATION AFTER SERVICING.
  • Page 13: Sample Wiring Diagram For Gas Models

    SAMPLE WIRING DIAGRAM FOR GAS MODELS CAUTION: DISCONNECT ELECTRIC CURRENT BEFORE SERVICING. LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND...
  • Page 14: Section A - Operating Instructions

    SECTION A - OPERATING INSTRUCTIONS Before Operating Your Dryer Note: To provide the best care for your laundry items, not all temperatures, dryness levels Read your dryer Use and Care Guide. It has impor- and options are available with all cycles. tant safety and warranty information.
  • Page 15: Normal

    When the load has reached the selected dryness level, Cycle Adjustments it will continue to tumble, unheated, during a Cool Down period. This helps reduce wrinkling and makes items A suitable drying temperature and dryness level will au- easier to handle during unloading. tomatically be displayed for the cycle selected.
  • Page 16: Air Fluff/No Heat

    4 minutes as a reminder to remove the load. The dried sensor. load can be removed at any time during Press Saver. · F 03 - There may be a problem with the heater No Heat system. This option provides up to 30 minutes of tumbling without ·...
  • Page 17: Dryer Settings Reference Chart

    Dryer settings reference chart AVAILABLE CYCLE SETTING - These temperatures, dryness levels and opions available with the following cycles. Normal Quick** Towels Perm Press Knits/Delicates Touch Up** Timed Dry Temperatures High Medium Medium Low Dryness Level More Dry Normel Dry Less Dry Damp Dry Options...
  • Page 18: Section B - Owners Guide

    SECTION B - OWNERS GUIDE For your safety, the information in this manual must be followed to minimize the risk of fire or explosion or to prevent property damage, personal injury or loss of life. Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. WHAT TO DO IF YOU SMELL GAS: •...
  • Page 19: Protect Children

    dryer has a drying rack, always replace the lint screen GAS DRYERS: when finished using the drying rack. Grounding type Keep area around the exhaust opening wall receptacle and surrounding areas free from the accumulation of lint, Do not under dust and dirt.
  • Page 20: Drying Procedures

    INSTALLATION INSTRUCTIONS for detailed grounding • Always read and follow fabric care labels and procedures. If the dryer is moved to a new location, have laundry product labels. it checked and reinstalled by a qualified service person. To prevent personal injury or damage to the dryer, the electrical power cord of a gas dryer must be plugged into a properly grounded and polarized 3- prong outlet.
  • Page 21: Features

    3. Load the dryer. • To resume the cycle, press START again • The average load will fill the drum 1/3 to 1/2 full. • To stop the dryer, press STOP/CLEAR twice. Items need room to tumble freely for even Two dashes will be displayed for drying and less wrinkling.
  • Page 22: Common Drying Problems

    through the grids. Do not tumble other items when 5. When items are dry, remove the rack and replace the using the drying rack. lint screen. If lint screen is not in place, tumbling items could enter the exhaust system and cause 4.
  • Page 23: Care And Cleaning

    Care and Cleaning Outside • Clean the cabinet with mild soap and water. Never To reduce risk of fire or serious injury to use harsh, gritty or abrasive cleansers. persons or property, comply with the basic warnings listed in Important Safety Instructions and those listed •...
  • Page 24: Avoid Service Checklist

    Avoid Service Before calling for service, review this list. It may save both time and expense. The list includes common occurrences that are not the result of defective workmanship or materials Checklist in this dryer. OCCURRENCE POSSIBLE CAUSE SOLUTION Dryer does not start. Make sure the plug fits tightly in wall outlet.
  • Page 25 Avoid Service Before calling for service, review this list. It may save both time and expense. The list includes common occurrences that are not the result of defective workmanship or materials in this dryer. Checklist POSSIBLE CAUSE SOLUTION OCCURRENCE Foreign objects such as coins, pins, clips Always remove foreign objects from pockets Scratching or or buttons are inside the dryer.
  • Page 26: Sample Warranty

    Your appliance is warranted by Frigidaire Home Products, a division of White Consolidated Industries, Inc. We authorize no person to change or add to any of our obligations under this warranty. Our obligations for service and parts under this warranty must be performed by Frigidaire or an authorized Frigidaire servicer.
  • Page 27: Section C - Installation Instructions Gas & Electric Dryer

    SECTION C - INSTALLATION INSTRUCTIONS GAS & ELECTRIC DRYER Before beginning installation, carefully read these instructions. This will simplify the installation and ensure the dryer is installed correctly and safely. Leave these instructions near the Dryer after installation for future reference. NOTE: The electrical service to the Dryer must conform with local codes and ordinances and the latest edition of the National Electrical Code, ANSI/NFPA 70.
  • Page 28: Pre-Installation Requirements

    PRE-INSTALLATION REQUIREMENTS Tools and Materials Required for Installation: 1. Phillips head screwdriver. 2. Channel-lock adjustable pliers. 3. Carpenter's level. NEMA 10-30R NEMA 14-30R 4. Flat or straight blade screwdriver. 5. Duct tape. GAS Dryer 6. Rigid or flexible metal 4 inch (10.2 cm) duct. CIRCUIT - Individual 15 amp.
  • Page 29 If the dryer is not exhausted outdoors, some MAXIMUM LENGTH fine lint will be expelled into the laundry area. An of 4” (10.2 cm) Dia. Flexible Metal Duct accumulation of lint in any area of the home can create VENT HOOD TYPE a health and fire hazard.
  • Page 30: Exhaust Directions

    EXHAUST DIRECTION 7. The dryer MUST be isolated from the gas supply piping system during any pressure testing of the gas All dryers shipped from the factory are set up for rear supply piping system at test pressures equal to or exhausting.
  • Page 31: Under Counter Installation

    15" 0" (0 cm) 1" (2.54 cm) (38.1 cm) 60 SQ. IN. 0" (0 cm) (387.1 SQ. 60 SQ. IN. (387.1 SQ. CM) CLOSET DOOR NOTE: Under counter and stack models - 0 inches (0 cm) for sides, rear, and top. 0"...
  • Page 32: Rough-In Dimensions

    UNDER COUNTER & STACK MODELS ROUGH-IN DIMENSIONS...
  • Page 33: Unpacking

    UNPACKING 1. Using the four shipping carton corner posts (two on each side), carefully lay the dryer on its left side and remove foam shipping base. To prevent damage, do not use the control panel as a means to pick up or move the dryer. 2.
  • Page 34: Grounding Requirements

    GREEN GROUNDING REQUIREMENTS GROUND SCREW SILVER TERMINAL ELECTRIC Dryer GREEN NEUTRAL GROUND DANGER WIRE Improper connection of the equipment grounding conductor can result in a risk of electrical shock. Check with a licensed electrician if you are in doubt as to whether the appliance is properly grounded. For a grounded, cord-connected dryer: TIGHTEN NUT TO THESE...
  • Page 35: Electrical Connections For 4-Wire System

    GREEN POWER CORD GREEN Do not make a sharp bend or crimp SILVER TERMINAL GROUND WIRE GROUND wiring/ conductor at the connections. SCREW TERMINAL BLOCK 8. Tighten the screws securing the cord restraint firmly against the power cord. 9. Tighten the strain relief nut securely so the strain relief does not turn.
  • Page 36: Replacement Parts

    flammable vapors. Also see that nothing (such as REPLACEMENT PARTS boxes, clothing, etc.) obstructs the flow of combustion and ventilation air. If replacement parts are needed for your dryer, contact the source where you purchased your dryer. 6. Run the dryer through a cycle check for proper operation.
  • Page 37: Section D - Stacking Instructions

    SECTION D - STACKING INSTRUCTIONS Electronic Tumble Action Washer/Dryer To reduce the risk of electrical shock, disconnect this appliance from the power supply before attempting any user maintenance. Turning the controls to the OFF position does not disconnect this appliance from the power supply. Refer to the washer and dryer installation instructions packed with each appliance prior to stacking appliances.
  • Page 38: Install Dryer Support Spacer

    3. Install the two (2) front stacking brackets onto the D. Prepare Dryer for Stacking washer with four (4) screws, provided in the kit. Drive the screws through the indentations in the plastic 1. Carefully remove the hole plugs located in the with the tab of the front stacking bracket facing for bottom of the dryer front panel, they will be ward as shown.
  • Page 39: Section E - How The Components Work

    SECTION E - HOW THE COMPONENTS WORK Clothes dryers remove moisture from clothes by pulling air, either warmed or room temperature, through the clothes while they are being tumbled by a turning drum. The moisture from the clothes is exhausted through the dryer vent system to the outside of the house.
  • Page 40: Control Thermistor

    Control thermistor Electronic control board Once inside the dryer cavity the air is drawn between the rear wall of the dryer and the plenum. The holes in the plenum allow the air to be drawn across the heating element. In any cycle, other than Air Fluff, the heating element heats the air as it passes through.
  • Page 41: Airflow Gas Dryers

    The air then is drawn into the drum through the holes in the rear of the drum. Airflow gas dryers: The air passes through the drum picking up moisture and is drawn though the lint filter into the ductwork at the The airflow in gas dryers is similar to electric dryers ex- front of the dryer.
  • Page 42: Airflow Problems

    1. Air being drawn in around the door opening, between the drum and the front panel, or around the foam seal between the front duct and the blower housing, re- places some of the air being drawn through the drum and lowers the efficiency of the dryer.
  • Page 43: Electronic Control Board Circuits

    on the electronic control board. The COM. terminal pro- relay RL 1 power is applied through terminal J9 to termi- vides power to the common contact of the relay and also nal M4 of the drive motor. provides power to the electronic control board. The elec- tronic control board controls the operating temperature Terminal M4 is connected inside the motor to one side of the dryer and length of the cycle by either sensing the...
  • Page 44: The Heating Circuit

    It compares the reading from the thermistor to the tem- In the AUTO DRY cycles the electronic control reads perature setting for the cycle. the capacitance between the two sensor bars located in the vent cover. The Heating Circuit: The electronic control board applies power to the heat- ing circuit through the contacts of heater relay RL 2.
  • Page 45: Electronic Control Board Circuits

    controls the operating temperature of the dryer and length When the speed of the motor reaches about 80% of it’s of the cycle by either sensing the amount of moisture in normal run speed the contacts of the centrifugal switch the clothes or a fixed amount of time when time dry is remove power from the start winding thus removing the used.
  • Page 46: Drying Time

    The holding coil, secondary coil, booster coil, sensor and igniter circuits interact with one another to assure safe operation of the dryer gas burner. Igniter Sensor Booster Holding Secondary It is necessary to raise the temperature above 1100° F to ignite gas. As current flows through the igniter, the temperature of igniter raises from room temperature to °...
  • Page 47 In the AUTO DRY cycles, the electronic control mea- sures the capacitance between the two sensor bars lo- cated in the vent cover. When wet clothes are placed in the dryer, the clothes touch the sensor bars and the moisture lowers the ca- pacitance between the bars.
  • Page 48: Section F - Troubleshooting Flow Charts

    SECTION F - TROUBLESHOOTING FLOW CHARTS NOTE: Always check the wiring and pin/plug connectors before replacing any component. NOTE: If a fault code is displayed the dryer will not operate. Refer to page 8 for information on fault codes. Electric dryer completely inoperative. Gas dryer completely inoperative.
  • Page 49: Electric Dryer Completely Inoperative

    Electric dryer completely inoperative. Note: Always check wiring to the components. Note: If a fault code is displayed the dryer will not operate. Dryer completely inoperative. Will the display illuminate? Yes. Measure the voltage drop between the COM terminal Will the control program? of relay RL 2 and neutral.
  • Page 50: Gas Dryer Completely Inoperative

    Gas dryer completely inoperative. Note: Always check wiring to the components. Note: If a fault code is displayed the dryer will not operate. Dryer completely inoperative. Will the display illuminate? Yes. Measure the voltage drop between the COM terminal Will the control program? of relay RL 2 and neutral.
  • Page 51: Electric And Gas Dryers; Blower Motor Runs But Drum Does Not Turn

    Electric and Gas dryers; blower motor runs but drum does not turn. Note: Always check wiring to the components. Drive motor runs but drum does not turn. Belt broken or off pulley. Electric and Gas dryers; longer than normal drying times. (Possible F05) Note: Always check wiring to the components.
  • Page 52: Electric Dryer Not Heating Properly

    Electric dryers not heating properly Note: Always check wiring to the components. Electric dryer not heating properly. Program the dryer for a Normal Cycle with High Temp and touch Start. Measure the voltage drop between L1 and L2 at the terminal block.
  • Page 53: Gas Dryer Not Heating Properly

    Gas dryers not heating properly Note: Always check wiring to the components. Gas dryer not heating properly. Program the dryer for a Normal Cycle with Low Temp and touch Start. Listen to hear if the burner cycle. Burner does Burner cycle. not cycle.
  • Page 54: Electric Dryers; Blower Motor Runs But Dryer Does Not Heat

    Electric dryers; drive motor runs but dryer does not heat. Note: Always check wiring to the components. Drive motor runs but dryer does not heat. Program the dryer for a Normal Cycle with High Temp and touch Start. Measure the voltage drop between the two terminals of RL 2.
  • Page 55: Gas Dryers; Blower Motor Runs But Dryer Does Not Heat

    Gas dryers; drive motor runs but dryer does not heat. Note: Always check wiring to the components. Drive motor runs but dryer does not heat. Program the dryer for a Normal Cycle with High Temp and touch Start. Measure the voltage drop between the two terminals of RL 2.
  • Page 56: Electric And Gas Dryers; Clothes Not Dry In Auto Cycle

    Electric and Gas dryers; clothes not dry in auto cycle. Note: Always check wiring to the components. Clothes not dry in the auto cycle. Tested good. Using the on line testing run the AUTO DRY MOISTURE COUNTS test. (Refer to pages 8 & 9) Check that the dryer is level or slightly tip Failed test.
  • Page 57: Section G - Teardown

    2. Remove the 2 screws, one at each end, that hold SECTION G - TEARDOWN the rail to the console back panel. This section will describe how to remove components from both gas and electric dryer. Unless stated, the pro- cedure will be the same on all dryers.
  • Page 58: Removing The Electronic Control And Display

    3. Remove the 2 screws holding the drip rail to the 2. Unplug the wiring from the control. console and side panel. 4. Remove one screw from each side, located about 6 inches down from the top, that holds the front panel to the side panel.
  • Page 59: Removing The Console

    3. Release the ribbon by unlocking the ribbon connec- 2. Disconnect the wires from the door switch and tor by lifting connector about 1/4 of an inch away unplug the harness for the sensor bars. from the board. Connect in the locked position. 3.
  • Page 60: Removing The Console Front Panel With Touch Pad

    Removing the console front panel with touch pad: Removing the door: 1. Disconnect the dryer from electrical supply, and 1. Open the door and remove the four screws holding remove the front panel. the door to the hinges. 2. Remove the console from the front panel and the drip rail from the console.
  • Page 61: Removing The Door Handle

    2. If the seal is to be replaced open the door and pull 2. Push up and forward and down and forward on the the seal from the liner. If the seal is to be reused, rear of the catch moving the catch forward until the separate the panels and use a small screwdriver to metal tabs hit the front panel.
  • Page 62: Removing The Sensor Bars

    2. Disconnect the wires from the door switch. Replacing the drum light bulb: 3. Squeeze the release tabs on the ends of the switch 1. Open the dryer door, release the clip holding the and push it out the front. light shield by pushing up, and unscrew the bulb.
  • Page 63: Replacing The Felt Seal

    2. Remove the top, lean the top of the front panel Replacing the foam seal: forward and disconnect the wires from the light socket. 1. Disconnect the dryer from electrical supply. 3. Remove the light bulb, squeeze the tabs on the side 2.
  • Page 64: Removing The Vane From The Drum

    2. Push the idler pulley to the right and slip the belt off 4. Use the belt to raise rear of the drum to release the the motor pulley. ball from the hitch and move the drum out the front. Removing the vane from the drum: 1.
  • Page 65: Removing The Hitch Ball From The Drum

    Removing the ball hitch from the drum: Removing the drum heat shield: (Electric dryers) 1. Disconnect the dryer from electrical supply and 1. Disconnect the dryer from electrical supply and remove the drum. remove the drum. 2. Remove the three screws from inside the drum 2.
  • Page 66: Removing The High Limit Thermostat

    Note: Do not lose the grounding ball or the tinnerman Removing the heating element assembly: (Electric mounting clip from the rear of the dryer. dryers) 1. Disconnect the dryer from electrical supply and remove the drum. 2. Disconnect the two wires from the heating element. 3.
  • Page 67: Removing The Blower Housing And Fan Blade

    2. Disconnect the wires from the thermistor and re- 4. Remove two screws holding the housing to the dryer move the two screws holding the thermistor to the base. blower housing. 5. Remove the front motor lock by inserting a screw- Removing the blower housing and fan blade: driver at the rear of the housing to release the housing from the motor.
  • Page 68: Removing The Idler Pulley

    Removing the idler pulley: 2. Unplug the harness from the motor and remove the idler assembly. 1. Disconnect the dryer from electrical supply and 3. Unscrew the blower wheel from motor shaft. remove the rear access panel. 4. Release the front motor lock from the blower hous- 2.
  • Page 69: Removing The Gas Valve Assembly (Gas Dryers)

    2. The igniter is held to the burner mounting bracket by 4. Remove the one screw securing the gas valve a screw and a tab. Remove the screw and lift the assembly bracket to the base, slide the gas valve igniter up to release the tab, then slide the igniter assembly forward and lift the gas valve assembly forward.
  • Page 70: Removing The Sensor (Gas Dryers)

    Removing the sensor: (Gas dryers) Removing the duct and heat shield: (Gas dryers) 1. Disconnect the dryer from electrical supply and 1. Disconnect the dryer from electrical supply, remove the front panel. remove the drum. 2. Disconnect the two wires from the sensor. 2.
  • Page 71: Removing The Vent Pipe (Gas Dryers)

    2. Turn the gas supply off and disconnect the gas Removing the vent pipe: (Gas dryers) supply from the dryer. 1. Remove the one screw holding vent to the rear 3. Remove dryer front panel. panel and pull the vent pipe out the back. 4.

This manual is also suitable for:

27" gas27" electric