Samsung FX710 Series Repair Manual Download Page 28 | Manualshive

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Step 1

① Check if the Breaker Spec is appropriate for product use (Allowable

Current >20A).

② Check if the Extension cord is appropriate for product use (Allowable

Current > 20A).

Step 2

① Check that the Power cord terminal insulation resistance is normal.

→ Ground and Live, Neutral resistances should be >10㏁.

② Disassemble the unit and check the Wire insulation condition.

③ If any damage to the Wire is found, tape and repair the wire, re-assemble

the unit, and check for proper operation.

Check Point

“Wire harness coating condition inspection.

Tip 6-5. Circuit Breaker Inspection

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Summary of Contents for FX710 Series

Page 1: ...uide FX710 FX510 Cooktop ignition Oven ignition Ignition Failure Oven Cooktop Heating defect Button Motors Lamp Abnormal Flame Smell Smoke Noise No Display Key Panel Others Sensors Temperature control Error Code Ver Aug 2013 ...

Page 2: ...tion defect Crack wire damage Connection check 1 3 Switch Ignition Spark Module Burner Cap defect Burner Cap mounting inspection Burner Cap check for debris 1 4 Burner Cap Orifice defect Orifice Diameter inspection Orifice check for debris 1 5 Nozzle Gas leak Regulator defect Gas main pipe connection leak check Gas line and manifold crack leak GBR Shut off operation check NG LP condition check 1 6...

Page 3: ...2 Temp Sensor Wire Harness Assy PCB defect PCB inspection Components Pattern damage connection Relay inspection 2 3 Assy PCB Safety valve defect Current measurement check 2 4 Safety Valve Gas leak Regulator defect Gas main pipe connection area leakage check Gas line and manifold crack leak GBR Shut off operation check NG LP condition check 1 6 Regulator Gas Line Chassis Project Basic Model Type Ga...

Page 4: ...ttern damage connection Relay inspection 2 3 Assy PCB Orifice defect Orifice Diameter inspection Orifice check for debris 1 5 Nozzle Gas leak Regulator defect Gas main pipe connection area leakage check Gas line and manifold crack leak GBR Shut off operation check LNG LPG condition check 1 6 Regulator Gas Line Door Open Close defect Door assembly condition check Gasket check 3 2 Door Gasket Chassi...

Page 5: ...Orifice Diameter inspection Orifice check for debris 1 5 Nozzle Gas leak Regulator defect Gas main pipe connection area leakage check Gas line and manifold crack leak GBR Shut off operation check NG LP condition check 1 6 Regulator Gas Line Chassis Project Basic Model Type Gas Oven Vulcan FX710 FX510 4 1 Repair Schematic ...

Page 6: ... for debris 1 4 Burner Cap Orifice defect Orifice Diameter check Check Orifice for debris 1 5 Nozzle Gas leak Regulator defect Gas main pipe connection area leakage check Gas line and manifold crack leak GBR Shut off operation check NG LPGcondition check 1 6 Regulator Gas Line Flame out defect Valve inspection 5 1 Valve Chassis Project Basic Model Type Gas Oven Vulcan FX710 FX510 5 1 Repair Schema...

Page 7: ...n 6 1 Oven Burner Air Shutter Open Close Defect Assy Door Drawer Part and Open Close check Hinge inspection Open Close interference check Drawer assembly condition check Drawer part check 6 2 Hinge Assy Door Noise Defect Cooktop noise defect Burner Cap mounting inspection Check if Spark noise or Gas noise Orifice spec check 6 3 NDF Nozzle Burner Convection Fan noise defect Fan cover casing check F...

Page 8: ...elay terminal 6 6 PCB defect PCB inspection Components Pattern damage connection Relay inspection 2 3 PCB Button Operation Defect Membrane panel Key issue Panel key operation and ribbon cable connection defect 6 7 Membrane Membrane Switch Deformation Defect Membrane Switch Deformation defect Customer usage Too large of a pot or using pot too close to Key panel 6 8 Membrane Chassis Project Basic Mo...

Page 9: ...Short Sensor resistance value check Main PBA short and other abnormality 7 2 Sensor Main PBA E 08 Preheat Fail not reach preheat target temperature Gas supply defect HSI ignition defect Safety valve defect 7 3 HSI Safety Valve Main PBA E 0A Over Temperature Excessive gas supply Temp Sensor defect PCB defect 7 4 Main PBA Temp Sensor E 0E Door Locking defect Connection Door switch defect Door lock m...

Page 10: ...eck the Electrode wire for signs of melting or other damage Check the Electrode fastening clip and Electrode fixed state Make sure there are no movements of the Electrode In the case of Wire melting sparks will come out of the melted area and it will fail to ignite Check Point Electrode wire and fastening Clip conditions inspection Tip 1 1 Electrode Inspection ...

Page 11: ...here are no Sparks Check the Electrode Spark module wiring Switch ignition Spark module connection state check Check the Spark module input voltage 120V Take measurements while Knob is at LITE position Check Point Spark module state and Wire connection state inspection Tip 1 2 Spark Module Inspection ...

Page 12: ...eck the Switch Ignition Spark module wiring Check the switch ignition each valve s assembly state Check if Switch ignition has any damage in the mold Check for any damage on Switch ignition wire Check Point Switch ignition state and Wire connection state inspection Tip 1 2 Spark module Tip 1 3 Switch Ignition Inspection ...

Page 13: ...re mounted properly Check if Sparks are sparking towards the Burner cap If the gap between Electrode and Cap is larger than 3 5 4mm Spark will go towards the burner instead of the cap and will not ignite If the Burner Cap mounting is unstable it might still ignite but the flame will be unstable and the incomplete combustion has a high chance of producing smoke Check Point Burner Cap debris and mou...

Page 14: ...mode Check for any debris on the Orifice Check the Orifice Diameter Oven has same diameter Cooktop has different Diameter per product Use the appropriate valves according to specs then check for proper operation Refer to next page for Gas Oven Cooktop orifice spec per product Check Point Orifice debris and Orifice Diameter inspection Tip 1 5 Nozzle Inspection Next Page Return to Abnormal Return to...

Page 15: ... 15 36 Cooktop Orifice Diameter Spec Sheet per Product Check Point Orifice debris and Orifice Diameter inspection 1 92 1 01 1 01 NG LP Tip 1 5 Nozzle Inspection ...

Page 16: ... NG 11 LP Check for proper NG LP setting Check for Regulator damage Check if gas is being supplied through Regulator Lubber clogged With Main gas line connected check for any gas leakage at each Gas line Manifold Main Leak point Install Error Most likely leakage cause Check Point Regulator damage Shut off lever Gas leak inspection Tip 1 6 Regulator Gas Leak Inspection Return to Other Return to Abn...

Page 17: ...valve is opened completely Check if HSI ignites properly when Oven starts Step 2 Check to see if Bake Broil burner s HSI is properly connected Check the HSI resistance value normal 40 400Ω Check Point HSI damage and ignition state inspection Tip 2 1 HSI Inspection ...

Page 18: ...connection Step 2 Check the Temp Sensor resistance value normal 1080Ω at room temp Short 0Ω Open Ω Check the PCB Wire connection if not connected E27 error will occur Must be connected Check Point Temp Sensor connection and resistance value inspection Tip 2 2 Temperature Sensor Inspection Return to Oven Heating ...

Page 19: ...wer connected at unit start normal 120VAC 12VDC Bake T602 T605 Broil T602 T604 Check for any Relay operating noise at Oven start Disassemble the PCB and check for any component or pattern damage If any problems are found replace the PCB and check for proper operation Check Point Temp Sensor connection and resistance value inspection Tip 2 3 Assy PCB Inspection Return to Other Return to Oven Heatin...

Page 20: ... terminal current value at Oven start normal 3 3 3 6A If problems are found replace the Safety valve and check for proper operation Measurement method when Broil operates Replace the Safety valve and check for proper operation Check Point Safety valve connection and resistance value inspection Tip 2 4 Safety Valve Inspection ...

Page 21: ...r temperature Step 2 Press the Convection bake 0 keys and check if Conversion is on off Select Off and delete the Convection 25 drop function Press the Bake 0 keys and reduce the temperature range using Temp Adjust function Check Point Conversion on off state inspection Tip 3 1 Temperature Selection Inspection ...

Page 22: ...word Door Check if any heat is leaking excessively around the unit during Oven operating While the door is closed check the gap between door and Gasket Inspect the Gasket for any tearing or damage and assembly conditions Check Point Conversion on off state inspection Gasket Check Tip 3 2 Door Close Inspection ...

Page 23: ...P When using High selection check if flame is normal Check if the flame goes out when knob is turned from High Low Check if the flame is large at Low selection Adjust the inner Valve Screw to calibrate the flame size when the burner is set to it s lowest setting Check Point Orifice debris and Orifice Diameter inspection Tip 5 1 Cooktop Flame Out Low Flame is Large ...

Page 24: ...are normal during Oven operation To check in Bake mode first remove the Cavity floor If the flame shows signs of lifting during Broil or Bake reduce the Air Shutter s opening area If the flame shows signs of yellow tip or if the flame is abnormally large increase the Air shutter s opening area Reducing Opening Increasing Opening Check Point Air shutter opening area inspection Tip 6 1 Smell Smoke I...

Page 25: ...ing check interference with Side Panel When Drawer Opening Closing check the rail for any stuck debris or deformations After removing debris apply Grease When Drawer Opening Closing check to see if Drawer stays on railing Check the Drawer s inner walls for any deformations Check Point Door Drawer Assy and Open Close interference inspection Tip 6 2 Door Drawer Open Close Defect ...

Page 26: ... per product Check that the Burner Cap is mounted properly For Spark noise check if knob dial has LITE position selected Explain to the customer that if only one burner is operating but there are Sparks at all burners this is normal operation and not a defect Explain to the customer that gas flow noise is normal during operation and not a defect Cooktop orifice Diameter Spec Sheet per Product See ...

Page 27: ...f Wire harness is connected properly without any issues Step 2 Disassemble the Assy casing and check the Blade for deformation and interference with nearby parts Check the input voltage at Conv Fan motor normal 120VAC If voltage value isn t normal replace the Main PCB Check the resistance between the Conv Fan motor terminals normal Resistance 20 30Ω Check Point Convection operation and abnormal no...

Page 28: ... 2 Check that the Power cord terminal insulation resistance is normal Ground and Live Neutral resistances should be 10 Disassemble the unit and check the Wire insulation condition If any damage to the Wire is found tape and repair the wire re assemble the unit and check for proper operation Check Point Wire harness coating condition inspection Tip 6 5 Circuit Breaker Inspection ...

Page 29: ...s connected properly Step 2 Check that the PCB is connected properly PCB power input terminal check if not connected properly or Pin disconnected Check Point Wire harness coating condition inspection Tip 6 6 Wire Harness Connection Inspection ...

Page 30: ...properly connected If issue persists after reconnecting the ribbon cable inspect the Membrane ribbon cable If issue persists after Membrane replacement replace the Assy PCB and check for proper operation Check Point Key operating conditions inspection Tip 6 7 Membrane Key Operation Inspection ...

Page 31: ... is used or if pot is used too closely to the Control Panel the heat from the Oven vent and burner can cause damage to the Membrane Switch If problem persists after Membrane replacement replace the Assy PCB and check for proper operation Check Point Key operating conditions inspection Tip 6 8 Membrane Switch Deformation Oven vent Oven vent heat Gas cooktop heat ...

Page 32: ... 2 Check if Key Panel ribbon cable connector is inserted properly over insert moisture intrusion Check if there s any corrosion or damage to the ribbon cable pattern Check Point Key panel appearance inspection Connection status Moisture Tip 7 1 Key Panel Short SE Check ...

Page 33: ...mp 1080Ω Step 3 If E 28 error is displayed and E 28 still displays after disconnecting the connector assume PBA short and replace the PBA If E 27 error is displayed after disconnecting the connector assume Sensor short and replace the Sensor Check Point Temperature Sensor assembly and component inspection Tip 7 2 Temperature Sensor Open E 27 Short E 28 Check ...

Page 34: ...eck the Safety valve for any problems If there is a lot of moisture around the Safety valve it will not operate properly Also check the current Check that GBR is set up appropriately with NG LP setting Check for Regulator damage Check the Main gas line connection and each Gas line Manifold for signs of gas leakage Check for any issues with Temp Sensor and PCB Check for any issues with the orifice ...

Page 35: ...NG LP setting Check for Regulator damage Check the Temp Sensor resistance and wiring normal R 1080Ω at room temp Check the PCB wiring and if there s any Relay terminal or pattern damage CN601 T601 T603 T604 T605 connection check Check Point Gas supply or HSI ignite inspection Tip 7 4 E 0A Overheating Defect Inspection ...

Page 36: ... properly CN 501 Step 2 Check if input voltage to Door lock motor is 120V Measure the Door lock motor coil s resistance value normal R 1750 1850Ω Check the Door Latch assembly for any issues Check Point Door Lock Motor Door Lock Switch connection inspection Tip 7 5 E 0E Error Inspection ...

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