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Viking Designer DEDO530T, Service Manual

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Viking Designer DEDO530T Service Manual Download Page 39

Diagnostics                                                                                                 

 

 

© 2008 Viking Preferred Service 

 

 

39

Parts location overview– Upper plenum  
 

NOTE: The oven shown here is model DEDO 127T which is a double oven, upper convection only!                                            
The Single version will have only I relay board. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Cooling motor      

(upper oven) 

Main Control 

board     

Convection 

speed     

capacitors 

Relay board   

(Upper oven) 

Relay board   

(Lower oven) 

Latch assembly 

(upper oven) 

Shown with access 

cover 

removed  

 Upper High temp  

Thermostat   
180

˚

 F  N.C. 

Summary of Contents for Designer DEDO530T

Page 1: ...roper service procedures done by an unqualified person Service SMC 0004 July 2008 DEDO127T DEDO130T DEDO527T DEDO530T DESO127T DESO130T DESO527T DESO530T VEDO127T VEDO130T VEDO527T VEDO530T VESO127T V...

Page 2: ...different types of altering messages All safety messages will be preceded by a safety alert symbol and the word DANGER WARNING or CAUTION DANGER Immediate hazards which WILL result in severe personal...

Page 3: ...representative This warranty does not apply to commercial usage Warrantor is not responsible for consequential or incidental damage whether arising out of breach of contract or otherwise Some jurisdic...

Page 4: ...is not a condition of warranty coverage You should however return the Owner Registration Card so that Viking Range Corporation can contact you should any question of safety arise which could affect yo...

Page 5: ...Individual Keyboard Tests 29 CYCLE CHARTS Bake 30 Broil 31 TruConvec 31 Description Page Convection Bake Convection Broil 32 Convection Roast Defrost 33 Dehydrate Proof 33 Auto Roast 34 Self Clean 34...

Page 6: ...24 40 24 40 Bake Rating 3000 Watts 3000 Watts Broil Rating 4000 Watts 3500 Watts TruConvec Rating 3000 Watts 3000 Watts Select Premiere Designer Touch 27 Wide 30 Wide 27 Wide 30 Wide Model Number DES...

Page 7: ...placed on the new one Failure to do so will cause improper operation of the oven Fig B shows the location of the control header Model Serial number matrix The model number and serial number are locate...

Page 8: ...General information 2008 Viking Preferred Service 8 Model Numbers Serial numbers The model and serial number tag is located on the underside of the control panel FIG A shows the location FIG A...

Page 9: ...el Double oven shown The Select model has Bake Broil True Convection Convection Bake Convection Broil Convection Roast Defrost Dehydrate and Self Clean Premiere model Double oven shown The Premiere mo...

Page 10: ...CLEAR In order to disable the Sabbath function following the procedures outlined above and select SABBATH NO This will disengage the Sabbath feature Lock and Unlock Both versions of the Touch Control...

Page 11: ...TruConvect cycle utilizes the outer bake element as well the inner broil and outer broil elements to assist the convection element during the preheat cycle up to 250 F Once this temperature has been a...

Page 12: ...d outer broil element will operate 5 of the time The convection fan will run at HIGH speed and changes direction throughout the cycle The main control board will operate the individual relays on the r...

Page 13: ...ture Once the desired temperature has been achieved the oven will operate on the rear convection element 95 during the cook cycle and a 5 cycle of the inner and outer broil element During the SEARING...

Page 14: ...lock or unlock the door latch 5 KEYBOARD ERROR No connection exists between the keyboard and the control 6 HIGH LIMIT ERROR High Limit switch has tripped 7 COOLING ERROR The cooling fan RPM is below m...

Page 15: ...he Brightness parameter 3 Using the DOWN arrow scroll down until you see TIMEOUTS in the display 4 Touch the Down arrow for 5 seconds you will here 3 tones until the display changes from Timeouts to T...

Page 16: ...tire oven including all the components display elements and keyboard test Hit SET button to run this test Please turn to page 20 for the test procedure Use the Down arrow to access the next test Produ...

Page 17: ...components Please turn to page 24 for the test procedure Use the Down arrow to access the next test Individual lower oven test or the UP arrow to access the previous test Individual display 5 Individu...

Page 18: ...cession Hit the SET button to begin this test Please turn to page 27 for the test procedure Use the Down arrow to access the next test Run all lower oven tests or the UP arrow to access the previous t...

Page 19: ...k the entire touch sensor pad on the control panel There are 40 pads in total Hit the SET button to begin this test Please turn to page 29 for the test procedure Use the UP arrow to access the previou...

Page 20: ...outer bake element ENTER or 6 Upper Inner broil element Run inner broil element ENTER or 7 Upper Outer broil element Run outer broil element ENTER or 8 Upper Convection element Run convection element...

Page 21: ...P key Pressing the key will advance to the next test All models 42 Press the CONV BAKE key Pressing the Conv Bake key will advance to next test All models 43 Press the CONV BROIL key Pressing the Conv...

Page 22: ...els 71 Press the LOWER LIGHTS key Pressing the key will advance to next test DOUBLE OVEN MODEL 72 Press the 4 key Press the 4 key will advance to next test All models 73 Press the 5 key Press the 5 ke...

Page 23: ...ting of all the individual components that can be tested in this program To scroll through each test use the down or up key and then select TEST to run the component test STEP To test TEST RESULT To e...

Page 24: ...ENTER CLEAR or 6 SET Oven Temperature Didplay upper oven temp ENTER CLEAR or 7 SET Meat probe Display meat probe temp Select models ENTER CLEAR or 8 SET Cooling Fan High Speed Run cooling fan at HIGH...

Page 25: ...T Oven Temperature Didplay upper oven temp ENTER CLEAR or 7 SET Meat probe Display meat probe temp ENTER CLEAR or 8 SET Cooling Fan High Speed Run cooling fan at HIGH speed ENTER CLEAR or 9 SET Coolin...

Page 26: ...dividual key 1 Touch the SET or ENTER key 2 You will see THE BAKE KEY in the display 3 Using the use the down or up key scroll to the individual keypad that you wish to test For example if you wish to...

Page 27: ...or 4 Upper Outer broil element Run outer broil element ENTER or 5 Upper Convection element Run convection element ENTER or 6 Upper Oven Temperature Display upper oven temp ENTER or 7 Upper Meat probe...

Page 28: ...uter broil element Run outer broil element ENTER or 5 Lower Convection element Run convection element ENTER or 6 Lower Oven Temperature Display upper oven temp ENTER or 7 Lower Meat probe Display meat...

Page 29: ...exception that only the keyboard pads are tested This test will cycle through all the touch key pads on the control panel in succession starting with the BAKE key As you press the designated key a suc...

Page 30: ...he UPPER OVEN key Pressing the Upper Oven key will advance to next test DOUBLE OVEN MODEL 24 Press the OFF key Pressing the Off key will advance to next test DOUBLE OVEN MODEL 25 Press the OVEN ON key...

Page 31: ...Diagnostics 2008 Viking Preferred Service 31...

Page 32: ...Diagnostics 2008 Viking Preferred Service 32 Broil cycle chart TruConvec cycle chart...

Page 33: ...Diagnostics 2008 Viking Preferred Service 33 NOTE Convection fan is running at LOW speed...

Page 34: ...Diagnostics 2008 Viking Preferred Service 34 Convection Bake cycle chart NOTE Convection fan is running at LOW speed Convection Broil cycle chart...

Page 35: ...referred Service 35 NOTE Convection fan is running at HIGH speed Convection Roast cycle chart NOTE Convection fan is running at HIGH speed Defrost cycle chart NOTE Convection fan is running at LOW spe...

Page 36: ...Service 36 NOTE Convection fan is running at LOW speed Proof cycle chart Premiere models only NOTE Convection fan is running at HIGH speed Auto Roast cycle chart Premiere models only Self Clean cycle...

Page 37: ...Diagnostics 2008 Viking Preferred Service 37...

Page 38: ...pports X X X Oven RTD Temperature Sensor X X X Broil Elements X X X Bake Elements X X X Convection Bake Elements X X X Convection Motor Assembly X X X Oven Light Bulbs X X X Oven Display Board X X X O...

Page 39: ...DEDO 127T which is a double oven upper convection only The Single version will have only I relay board Cooling motor upper oven Main Control board Convection speed capacitors Relay board Upper oven Re...

Page 40: ...PU3 Wires to lower Hall sensor To PL4 Convection fan motor 2 direction 240 volt L2 Black wire to main terminal block L1 Gray wire CCW direction to P3 L1 Blue wire CW direction to P3 Lower Cooling mot...

Page 41: ...lower latch motor assembly In order to remove remove the 2 hex screws And gently pull the latch assembly out along with the white insulation pad FIG E shows the latch assembly pulled out from the plen...

Page 42: ...With the pins in place grasp the door from both sides and gently close the door until resistance is felt DO NOT apply too much pressure or damage will occur As FIG C shows lift the door up and then t...

Page 43: ...yellow Line break relay P7 white w Green tracer Outer Broil Element Lower 240 VAC 40 0 Ohms 6 0 amps K17 yellow Line break relay P6 Gray wire Inner Broil Element Lower 240 VAC 22 6 Ohms 10 6 amps K17...

Page 44: ...il element Defective relay board Defective Main control board Defective oven wiring shorted open or burned Replace broil element Replace relay board Replace Main control Board Repair or replace defect...

Page 45: ...incorrect model number has been installed Verify that proper header is installed See Page 7 Error Code RTD ERROR Open or defective RTD Test the RTD from the connection on the Main Control board PU3 i...

Page 46: ...onnector on the relay board See Page 57 Error Code HIGH LIMIT High limit protector has tripped Check the P10 connector on the upper and lower relay board If open check the High Limiter The upper limit...

Page 47: ...When the temp drops below that threshold the fan will stop running NOTE Though the board is capable of producing two speeds Viking only utilizes one speed Note When conducting the diagnostic program y...

Page 48: ...Pin 1 wire and Pin 3 wire You should read 0 volts between Pin 2 and Pin 3 If the voltages are not correct replace the Main Control Board If the voltages are correct reconnect the 3 Wire Molex Plug Pl...

Page 49: ...ly If you reverse the connections you will not be sensing the proper cavity temperatures which can cause runaway temperatures FIG B shows the area where the RTD wires enter the oven cavity As you can...

Page 50: ...are N O With the door in the unlocked position the contacts in SW 1 are open The contacts in SW2 are closed by the position of the door cam FIG C shows the latch in the CLOSED locked position The con...

Page 51: ...is wired directly to the lock motor The lock motor is operated on 240 volts AC The lower relay board has a White w Red tracer as shown in FIG C L1 Black from the Main terminal block is wired directly...

Page 52: ...hrough the Yellow wire P2 on the relay board s shown in FIG B to the light fixtures in the oven cavities The Neutral side for the lights in connected to the Neutral terminal on the main terminal Block...

Page 53: ...s the location of the screws FIG B shows the lower oven limiter It is normally closed and will open at 275 F The 2 gray wires are connected to the lower oven relay board at connection P10 To test the...

Page 54: ...e relay energizes FIG C shows the current flow for HIGH speed L1 Power flows through the N O contact in the K5 relay energized to the common terminal on the K6 The N C contact on K6 is wired directly...

Page 55: ...ct of the Speed relay K7 We now have two capacitors in a SERIES circuit Both capacitors have a rating of 1 5 ufd giving a total of 3 0 ufd for LOW speed operation The common terminal of K7 is internal...

Page 56: ...lows through the N O contact in the K5 relay energized to the common terminal on the K6 The N O contact on K6 is wired directly to the convection motor Gray wire In reverse operation the K6 relay is e...

Page 57: ...re In reverse operation the K6 relay is energized The N O contact of the K6 is internally connected to the Common terminal of the K7 L1 power flows through K6 to the K7 relay The K7 is energized in HI...

Page 58: ...eyboard first try to run the Individual Keyboard Test on Page 17 of this manual If you are unable to run the test check for the control voltages from the output of the Main Control Board FIG A shows t...

Page 59: ...nd Pin 7 5 VDC Pin 2 and Pin 4 5 VDC Pin 2 and Pin 5 5 VDC Pin 2 and Pin 7 5 VDC Pin 4 and Pin 5 are Ground to display If the voltages are correct unplug the Molex plug from both the main control boar...

Page 60: ...Input Serial Data from Main Control Board Pin 3 Input Data clock from Main Control Board Pin 5 Input Start Enable from Main Control Board Pin 7 N C Not used Pin 9 Output Serial data return from Main...

Page 61: ...ing check for the proper voltage to the board before proceeding BAKE Inner When the Main Control Board calls for the Inner Bake element K10 is energized FIG A shows the K10 relay activated FIG B shows...

Page 62: ...to provide L2 to the Outer bake element BROIL Inner When the Main Control Board calls for the Inner Broil element K12 is energized FIG A shows the K12 relay activated FIG B shows a close up of the P6...

Page 63: ...When the Main Control Board calls for the Convection element K14 is energized FIG A shows the K14 relay activated FIG B shows a close up of the P7 connector L1 Red comes into the P7 connection on the...

Page 64: ...he lower interlock switch wires are connected to the PL2 connection FIG C shows the lower oven door interlock switch To test the switch access the main Control board and unplug the Molex Plug from the...

Page 65: ...Wiring and Schematics 2008 Viking Preferred Service 65 Wiring Diagram Premiere Model Single oven Double Upper section...

Page 66: ...Wiring and Schematics 2008 Viking Preferred Service 66 Wiring Diagram Select Model Single oven Double Upper section...

Page 67: ...Wiring and Schematics 2008 Viking Preferred Service 67 Wiring Diagram Select Model lower oven section...

Page 68: ...Wiring and Schematics 2008 Viking Preferred Service 68 Wiring Diagram Premiere Model lower oven section...

Page 69: ...Wiring and Schematics 2008 Viking Preferred Service 69 Schematic Select single oven models DESO 127T DESO 130T VESO 127T VESO 130T...

Page 70: ...Wiring and Schematics 2008 Viking Preferred Service 70 Schematic Premiere single oven models DESO 527T DESO 530T VESO 527T VESO 530T...

Page 71: ...Wiring and Schematics 2008 Viking Preferred Service 71...

Page 72: ...Wiring and Schematics 2008 Viking Preferred Service 72...

Page 73: ...Wiring and Schematics 2008 Viking Preferred Service 73...

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