Dacor ELECTRONICS Manual
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Dacor ELECTRONICS Manual

Dacor ELECTRONICS Manual

Wall ovens and ranges diagnostic test manual
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ELECTRONICS
Wall Ovens and Ranges
Diagnostic Test Manual

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Summary of Contents for Dacor ELECTRONICS

  • Page 1 ELECTRONICS Wall Ovens and Ranges Diagnostic Test Manual...

  • Page 2: Table Of Contents

    Table of Contents ERC Quick Test………………………………………………………………………3 Voltage Check Points ………………………………………………………………4 Diagnostics No Clock Display………………………………………………………………5 No Bake…………………………………………………………………………6 No Broil………………………………………………………………………… 7 No Heat on Pure Convection ………………………………………………8 Oven Light ( ……………………………………………… 9 Low Voltage Halogen) Door Latch ……………………………………………………………………10 Failure Codes F-7/F-8………………………………………………………..11 Cooling and Convection Fan………………………………………………12 Light 120 V Circuit …………………………………………………………...

  • Page 3: Erc Quick Test

    ERC Quick Test The process requires two people. To access the program, one person should stand at the oven, while the other is located at the circuit breaker. The person at the circuit breaker turns off the breaker and then the person at the oven depresses and holds the cooktime keypad. The person at the circuit breaker then turns the breaker back on.

  • Page 4: Voltage Check Points

    OUTPUT VOLTAGE CHECK POINTS ON ERC/CLOCK CONTROL All Ranges And Wall Ovens When programming the oven into a cooking cycle, you first select the desired mode on the touch membrane. Pressing this key sends a message to the ERC/Clock control, which in turn triggers 24 Volts DC to be sent to the main relay board through the connective har- ness.
  • Page 5 NO CLOCK DISPLAY All Ranges And Wall Ovens **Prior to going out on this call - make sure that the customer has re-set the circuit breaker. Check incoming voltage. Appliances must have 240 volts with a neutral. Check voltage at main relay board at L1 and N just in front of the low voltage transformer.
  • Page 6 NO BAKE All Ranges And Wall Ovens Check the incoming voltage to the unit. There should be 240 volts with a neutral. Check power at the Dbl (double line relay) from (Com) to neutral. There should be 120 volts incoming to the Dbl. Refer to picture for testpoints. If voltage is ok, move to step 3. Program the unit into a bake cycle.

  • Page 7: No Broil

    NO BROIL All Electric/Dual-Fuel Ranges And Wall Ovens Check the incoming voltage to the unit. There should be 240 volts with a neutral. Check power at the Dbl (double line relay) from (Com) to neutral. There should be 120 volts incoming to the Dbl. Refer to picture for testpoints. If voltage is ok, move to step 3. Program the unit into a broil cycle.
  • Page 8 PURE CONVECTION - NO HEAT Wallovens, Dual Fuel and Electric Ranges Check the incoming voltage to the unit. There should be 240 volts with a neutral. Program the unit into pure convection. Check power at the Dbl (double line relay) from (Com) to neutral.

  • Page 9: Halogen Oven Lights

    HALOGEN OVEN LIGHTS Electric and Dual Fuel Ranges, Wall Ovens Check input voltage to the light transformer at the primary side across terminal 1 and 5. Should read 240 volts. (see picture) If you do not have 240 volts across 1 and 5, check wiring back to the terminal block.

  • Page 10: All Models

    DOOR LATCH NOT RUNNING All Models Check voltage at L2 just to the left of the DRLK relay. (door lock relay) you should have 120V present. See picture for test points. If there is no voltage present, check wiring from L2 back to terminal block. If you have voltage at L2 go to step 3 Program oven into self-clean cycle.
  • Page 11 Elecronic Diagnostics Page 11...

  • Page 12: Single Oven

    F-7, F-8 Door Failure Codes Single Oven Wall Ovens and Ranges Single Oven 1 - Com Brown Wire 2 - N/C Yellow Wire 3 - N/O 4 - N/C Orange Wire 5 - N/O 6 - Com Double Brown Wire Double Oven Double Oven 1 - Com Brown Wire...
  • Page 13 NO COOLING FAN All Ranges And Wall Ovens Program unit into a cooking cycle. The cooling fan should come on right away. ** If cooling fan doesn’t come on, check voltage at CVF or CLF relay (cooling fan relay) side to neutral. Should read 120 VAC. If voltage is not present replace main relay board.
  • Page 14 LIGHT NOT WORKING PGR, RSD, RSE 120V Light Circuit Check voltage for light circuit at main relay board at terminal N, just to the left of OL1 (oven light relay one) Should have a constant 120 volts. (see picture) If no voltage there check wiring back to terminal block.

  • Page 15: No Bake

    NO BAKE/BROIL EGR, ERG, PGR Here is a list of functional parts that should be working for the bake/broil to light.. Main Relay Board Cooling blower Air switch (sail switch) Dual gas valve Bake Igniter All of these elements must be working in order for the bake or broil burner to function. NO BAKE Check incoming line voltage to the DBL (double line relay) NO side and neutral.
  • Page 16 Here is a list of functional parts that should be working for the bake/broil to light.. Note: ERG30’s had a sail switch prior to SN KC1230128. On 6-7-01 the sail switch Main Relay Board was replaced with an automatic reset switch. Cooling blower PGR30’s unit with a serial level KB0000000 and KA0000000 had a sail switch - those Air switch (sail switch)

  • Page 17: No Broil 36" Cell

    NO BROIL 36” Cell ERD30, 36, 48 Program unit into the broil cycle. Take an amp reading at the broiler igniter. You should have 3.1 to 3.3 amps. Or take a voltage reading at the main relay board. At the main relay board take a voltage check from the BR (broil relay) to neutral should read 120 volts AC.

  • Page 18: Lower Oven / No Bake

    LOWER OVEN / NO BAKE ECS/ECD, MCS/MCD, PCS/PCD Check the incoming voltage to the unit. There should be 240 volts with a neutral. Check power at the Dbl (double line relay) from (Com) to neutral. There should be 120 volts incoming to the Dbl. Refer to picture for testpoints. If voltage is ok, move to step 3. Program the unit into a bake cycle.

  • Page 19: Lower Oven Erc Harness

    DOUBLE WALL OVENS Lower Oven ERC Harness When the ERC/Clock Control is programmed into any cooking mode, the ERC/Clock control sends 22-24 volts DC into the relay board to power that function. For example: if the lower oven is programmed into a bake cycle, the ERC Clock control would send 2DCV to the Lower Oven relay board to close the bake relay.
  • Page 20 This membrane chart shows the membrane touch circuit. For example: pull the main connector off the ERC control and insert the test leads into the connector at points 19-13. Press the bake function on the up- per oven touch pad to show a closed circuit. Elecronic Diagnostics Page 20...

  • Page 21: Electric Ovens And Ranges

    All Electric Ovens and Ranges Pure Convection Refer to Main Wiring Harness for test points 2 & 7 Convection Element 2 & 9 Convection Motor Use 16 Pt connection side of ERC harness to test Convection Bake Test across 2 & 5 on main wire harness - for Bake it should read 22-24 VDC.
  • Page 22 All Electric Ovens and Ranges Cooling Fan Cooling Fan 1&3 Cooling Fan 180-225 Refer to the 16 pin side of the ERC wire harness to test Light Circuit Light Circuit Elecronic Diagnostics Page 22...

  • Page 23: Self Clean

    All Electric Ovens and Ranges Self Clean Check output DCV at the 16 pin connector side of the ERC/Clock harness. 2 & 5 bake = 22-24 VDC 2 & 6 Broil = 22-24 VDC 1 & 11 Latch Motor = 22- 24VDC 1 &...
  • Page 24 All Electric Ovens and Ranges Bake Bake 2 & 5 Elecronic Diagnostics Page 24...

  • Page 25: Gas Ranges

    Gas Ranges Bake Convection Bake Elecronic Diagnostics Page 25...
  • Page 26 Gas Ranges Self-Clean Check across 2 and 5 for bake from the 16 pt connection of the main wire harness for 22-24 VDC and 1 and 11 for the cooling fan. Preheat Check across 2 and 5 for 22-24 VDC from the 16 pin connection of the main wire harness of the ERC for the bake coil.
  • Page 27 Gas Ranges Broil Elecronic Diagnostics Page 27...

  • Page 28: Dual Fuel Ranges

    Dual Fuel Ranges Broil Convection Bake Elecronic Diagnostics Page 28...
  • Page 29 Dual Fuel Ranges Light Circuit 36” Oven Preheat/ Bake 36” Oven Elecronic Diagnostics Page 29...
  • Page 30 Dual Fuel Ranges Light Circuit Pure Convection Elecronic Diagnostics Page 30...
  • Page 31 Dual Fuel Ranges Self Clean 36” Cell Note: Cooling Fan turn on temp 180-220 degrees Self Clean 18” Cell Note: Cooling fan turns on between 180 and 220 degrees Elecronic Diagnostics Page 31...
  • Page 32 Dual Fuel Ranges Bake 18” Cell Note: Cooling fan turns on between 180 and 220 degrees Self Clean 18” Cell Note: Cooling fan turns on between 180 and 220 degrees Elecronic Diagnostics Page 32...
  • Page 33 Convection can be defined as air movement. Why do convection ovens bake faster? Dacor convection ovens bake faster because the convection fan system removes the thin layer of cool air that surrounds most refrigerated food products. Removing this layer allows the heat in the oven to efficiently penetrate the food.
  • Page 34 Basic terminology:  Baking: refers to items baked on flat sheets or spring form pans such as cakes, cookies, pastries and other delicate items. Higher oil, butter or sugar content requires an extremely accurate oven and exact timing for the best results. Unlike roasting and braising, true baking is more exacting.
  • Page 35 The combination of a rear heat source, convection filter system and a centrally mounted oven temperature sensor make this system a very powerful tool for crafting the perfect meal. The Dacor Convection Filter The removable, stainless steel convection filter is located on the face of the convection baffle.
  • Page 36 Combine those three factors with a recipe calling for exact temperatures and baking times results in a situation guaranteed to ruin the most well planned recipe. Your customer will likely complain about either a combination of poor color and texture or slow bake. Customer B normally gets good results because she understand the modes and the importance of a thorough preheat.
  • Page 37 Recommended Temperature Meter Dacor recommends the relatively inexpensive Fluke 52 digital thermometer. This meter allows the use of two thermocouples for better accuracy,. We recommend that large alligator clips be attached to the ends of the thermocouple leads for accurate placement within the oven cell.
  • Page 38  Record first cut out temp  Record first cut in temp  Continue to record until you have at least four to five complete rises. This will take approx thirty five to forty minutes.  When you have recorded 4-5 rises, cancel cycle and select Convection Bake, adjust to 350F ...
  • Page 39 Most of these systems simply allow the oven to breath better during the bake / broil cycle. Others only turn on a fan during self-clean. Dacor incorporate a reverse airflow cooling system that is used as both an external and internal cooling system.
  • Page 40 Adjusting The Cooling Fan Cutout Temperature Dacor wall ovens and ranges come preset with the cooling fan cut out preset at 300f. Please note that 300f. and the indication 000 are the same. In certain applications, (high or low ambient temps or high altitude) you may want to modify the default setting of the cooling fan cutout temperature.

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