Garland MCO-GD-10E User Manual

GARLANDA WELBILT COMPANYBUILT TO LEAD... BUILT TO LAST SERVICE MANUAL THE “MASTER” GAS CONVECTION OVENS Models covered in this manual are: MCO-GS

10 The controller needs voltage to operate and is capable of operating on three (3) different line voltages, 115 Vac, 208 Vac, 240 Vac. On the bac

11 The User Preference Offset is designed to enable the user to adjust the controlling temperature. There are two different styl

12 Entry Exit UPO - User Preference Offset. Used by the user to adjust the controlling temperature +/- 50º in 1º increments. 1. Set the time di

13 The safety lockout timer circuit starts timing the moment the trial for pilot ignition starts. When the timing period runs out, the trial for ig

14 and answering conditions in each box encountered, until a problem and/or the repair is explained. After any maintenance or repa

15 CHECK GROUNDING A common ground is required for the pilot burner, the ignitor-sensor, the GND terminal of the S86, and the

16 APPEARANCE CAUSE SMALL BLUE FLAME Check for lack of gas from: • Clogged orifice filter • Clogged pilot filter • Low gas supply pressure

17 This section will give you the best way to access component for replacement. COMPONENT LOCATIONS: Top Front Center Door Chain Door Catc

18 2. Locate stainless steel door gasket, mounted to oven front frame. 3. Remove the #10 Phillips sheet metal screw that attach the retainer to th

19 2. Remove door chain assembly (NOTE: The “A” model does not come equipped with door chain). 3. Remove flat head metal screw 1/4”-20x1/2”  from

2 This service manual is designed to answer questions related to model operational requirements, troubleshooting and disassembly/asse

20 123475786NOTICE: DEPENDENT DOOR SHOWN7 To disassemble left door: 1. Once the door has been removed from the oven (refer to instructions on the

21 12345NOTICE: DEPENDENT RIGHT HAND DOOR SHOWN. 1. Once the door has been removed from the oven (refer to instructions on page 19), remove 9 truss

22 To Replace or Adjust Door Latch Mechanism 1. Open oven doors. 2. Remove 2 pan head Phillips screws. 3. Lift door latch mechanism  up and out

23 Assembly FILE NAMEJIT000127621385459 1. Assemble  motor mount plate,  * insulation,  motor mount plate inner together by fastening four flat

24 Main Burner, Pilot Burner Removal & Door Micro Switch Location 1234 To access the Burners, Pilot or Door Switch - remove the lower combustion

25 SECTION 4: - COMMON WIRE DIAGRAMS

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3 SECTION 3: COMPONENT ACCESS OF FUNCTIONAL COMPONENTS...16 DOOR GASKET REPLACEMENT...

4 GAS CONVECTION OVEN "GAS SPECIFICATIONS” TOTAL MAIN BURNER ORIFICE PILOT PILOT ORIFICE GAS PRES. W/C B.T.U.'S ORIFICE AMT.

5 Understanding the sequence of operation is necessary in properly trouble-shooting this appliance. In this section the sequence of operation w

6 A thermocouple type test instrument is preferred for measuring oven temperatures accurately. Mercury thermometers are acceptable providing they

7 five times doubling the thickness with each fold. After the fifth fold, place the thermocouple tip in the center of the aluminum piece and fold o

8 ELECTRONIC CONTROLS - “E” Sequence of Operation (With the Oven Doors Closed) 1. Line Voltage is supplied to the Mode Switch, Door Switch and

9 ELECTRONIC CONTROL FAILURE CODES The GARLAND digital control has a self-diagnostic program. If a problem occurs within the digital controller, y