S E RV I C E M A N U A L Part No. 32Z3385 Issue No.
Table of Contents Safety Code ...........................................................................3 Microcook HD Specification Sheet ........................................4 Microcook TA Specification Sheet……………. ............. …….5 Installation Instructions ..........................................................6 Error Codes & Diagnostics ....................................................7 Power Output Test Procedure A............................................8 Simplified Power Output Test B.
SAFETY CODE This manual is designed to assist engineers who have successfully completed a Merrychef Service training course. It has been prepared to offer technical guidance for the Merrychef Microcook HD and Microcook TA Commercial Microwave Ovens. Please remember that it is wiser not to attempt a service task if you are unsure of being able to complete it competently, quickly, and above all safely.
Product specifications Microcook HD1025, HD1425, HD1725 & HD1925 Model Number: Model prefix + Type + Voltage + Frequency + UK/Export For example: 1925C450UK Model 1925, Microcook, 230-240V, 50Hz, UK model Model prefix 1025 1425 1725 1925 Type C= Cook V= Vend Voltage Frequency UK/Export 2= 220-230V a.c. 4= 230-240V a.c 50 = 50 Hz 60 = 60 Hz UK = UK model EX = Export model Power Requirements Model HD1025 Model HD1425 Model HD1725 Model HD1925 Model HD2025 1.75kW 2.60kW 2.88kW 3.
Product specifications Microcook TA1725, TA1925 Model Number: Model prefix + Turbo + Voltage + Frequency + Type Model prefix Turbo Voltage Frequency Type TA1725 TA1925 MT = Manual Turbo VT = Vend Turbo 2= 220-230V a.c. 4= 230-240V a.c 5 = 50 Hz 6 = 60 Hz UK = UK model EX = Export model EE = Twin 13amp Lead EX = Single 30 amp Lead Power Requirements TA1725 TA1925 Power Output TA1725 Microwave 100% Hot Air Combination TA1925 Microwave 100% Hot Air Combination Power supply lead TA1725 3.12kW 5.
Installation instructions Power Supply Requirements The Microcook HD & Microcook TA ovens should be connected to a suitable electricity supply, which can cope with the switching-on surge that occurs with certain types of catering equipment, such as microwaves. Because of this requirement, we strongly recommend that a separate, suitably rated supply is installed for the oven. The supply for the oven should be fitted with a Type "C" circuit breaker, rated at 16A.
Error codes and diagnostics The Microcook will identify some of the most common problems by flashing an error message code in the time display window. These are the error messages, and suggestions for repairing them. Display 1 Fault (frequency) Recommended Action Door not fully closed (permanent) Check the door is fully closed. Check the door down LED is illuminated on the control board. Check ribbon connector condition and fit.
Procedure A - Power Output Test in accordance with BS EN 60335-2-90 Annex AA This test is given in the BSI test standard for microwave ovens. It is reproduced below - not so that you can follow it, but to show you why it is impractical in normal conditions. A simplified procedure, which gives a good approximation to the BSI power output, is given in Procedure B which follows. Note: This test can only be carried out on a COLD oven.
Procedure B - Simplified Power Output Test You will need: A thermometer capable of reading to ±0.1°C. A Polypropylene tray approximately 200mm x 200mm. A measuring jug. A calculator. Water which is at a temperature of 10°C ± 2°C. 1 2 3 4 5 6 7 8 Measure 1 litre of cold water into the tray using the measuring jug. Measure the water temperature, and record it as T[s]. Place the tray on the turntable in the oven and close the door. Turn the oven on. Set the timer to 1:02. Press the “100%” power pad.
Procedure D - High Voltage Capacitor Test You will need: A Digital Multi-meter (D.M.M.) A Megger or similar resistance meter using 500V d.c. WARNING: High voltages and large currents are present at the High Voltage Capacitor. It is very dangerous to work near this part when the oven is on. NEVER make any voltage measurements at the High Voltage circuits, including the magnetron filament .
Door interlock operation The door on the Microcook oven is monitored by three microswitches used in the conventional “Primary, Secondary and Monitor” switch arrangement shown below. Secondary Primary L Power Out Power In N Door Interlock Arrangement Monitor The switches operate as follows: 1. Monitor Switch [TopRight]. As the door is closed, the monitor switch is opened. 2. Primary Interlock Switch [ Bottom Left ]. The Primary switch is then closed. 3. Secondary Interlock Switch [ Bottom Right ].
Main features a c d e f g microcook C e turboaire ll C Description of Features a. Program Pad b. On/Off Switch c. Program Display d. Program Selection / Time Set Pads e. Power Selection Pads HD models:100%, 50% & de-frost TA models:100%, hot-air & turbo f. Time Display g. Cancel / Callback Pad h.
Rear cover assembly HD1025 only Rear View 5 1 All other models Inner View Outer View 2 1 5 3 7 6 No Description HD1025 HD1425 HD1725 HD1925 HD2025 1 2 3 4a 4b 5 6 7 40M0883 —– —– 31Z3022 31Z5012 31Z2071 —– 31Z2056 Rear Cover Push Fit Feet Air filter Screw M5x16 M5 Star Washer Installation Label Self Adhesive Foam Tape Service History Label Microcook Ovens 32Z3385 Issue 4 11M0269 31Z1187 31Z1104 31Z3022 31Z5012 31Z2071 31Z0158 31Z2056 11M0269 31Z1187 31Z1104 31Z3022 31Z5012 31Z2071 31Z0158 31
Die–cast door ( 500mm ) assembly 11M0302 14 15 13 11 23 9 18 13 17 19 12 24 22 16 21 20 Note: Parts 18 & 19 choke filler are now one piece No Description HD1025 HD1425 HD1725 HD1925 HD2025 8* 9* 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 11M0302 40M0923 30Z0477 40M0919 40M0920 31Z4013 31Z3022 40M0839 40M0841 40M0840 Door Assembly Door Screen Blue Double Sided Tape Doorside L/H Doorside R/H Fixing Nut (M5) Fixing Bolt (M5 x 16) Door Main Body Door Mesh Door Choke Choke Filler Horizontal
Door ( 650mm ) assembly 11M0258 16 35 13 15 13 35 33 11 26 29 22 9 19 23 32 16 30 12 31 25 27 37 36 33 26 No Description HD1025 HD1425 HD1725 HD1925 HD2025 9 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 35 36 37 40M0923 40M0919 40M0920 31Z4013 31Z3022 40M0839 40M0841 40M0840 Door Screen Blue Doorside L/H Doorside R/H Fixing Nut (M5) Fixing Bolt (M5 x 16) Door Main Body Door Mesh Door Choke Choke Filler Horizontal Choke Filler Vertical Inner Door Glass Silicone S
Control panel assembly 44 40 39 38 43 42 41 No Description HD1025 HD1425 HD1725 HD1925 HD2025 TA 38* Switch Panel Assy 11M0108 11M0108 11M0108 11M0108 11M0271 11M0299 39* Logic Board 11M0107 11M0107 11M0107 11M0107 11M0107 11M0359 40 Electrostatic Screen 40M0464 40M0464 40M0464 40M0464 40M0464 40M0464 41 Ribbon Connector (10 Way) 11M0117 11M0117 11M0117 11M0117 11M0117 11M0117 42 Filtered Wire Assembly 11M0333 11M0333 11M0333 11M0333 11M0333 11M0333 43 M4 Nylon Face Nut 31Z4014 31Z4
Component layout: HD1025 56 59 62 65 58 67 73 66 68a 68b 70 69 63 64 54 61 51 52 53 48 52 49 55 No Description HD1025 HD1425 HD1725 HD1925 HD2025 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68a 68b 68c 69 70 71 72 73 74 10M0026 11M0359 —– 31Z7010 11M0353 30Z0992 20Z0787 40M0614 40H0046 Cavity Relay Board Fan Control Pcb PCB Stand-off Door Spring Kit Transformer Transformer Spacer Safe Edge Cover Capacitor Clip Capacitor L/H Capacitor R/H Protective Boot Nomex Cover Mag
Component layout: HD1425 & HD1725 62 65 70 59 60 61 65 73 71 68a 68b 74 68c 67 56 63 69 66 58 54 57 52 52 55 53 48 49 51 No Description HD1025 HD1425 HD1725 HD1925 HD2025 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68a 68b 68c 69 70 71 72 73 74 10M0026 11M0359 —– 31Z7010 11M0353 30Z0992 20Z0787 40M0614 40H0046 Cavity Relay Board Fan Control Pcb PCB Stand-off Door Spring Kit Transformer Transformer Spacer Safe Edge Cover Capacitor Clip Capacitor L/H Capacitor R/H Protectiv
Component layout: HD1925 71 62 59 60 70 61 73 68a 65 68b 68c 74 56 67 65 63 69 66 58 54 57 53 52 52 55 48 49 51 No Description HD1025 HD1425 HD1725 HD1925 HD2025 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68a 68b 68c 69 70 71 72 73 74 10M0026 11M0359 —– 31Z7010 11M0353 30Z0992 20Z0787 40M0614 40H0046 Cavity Relay Board Fan Control Pcb PCB Stand-off Door Spring Kit Transformer Transformer Spacer Safe Edge Cover Capacitor Clip Capacitor L/H Capacitor R/H Protective B
Component layout: HD2025 66 62 59 70 60 61 58 71 57 67 56 63 74 68a 69 68b 68c 65 54 52 48 55 53 49 51 52 No Description HD1025 HD1425 HD1725 HD1925 HD2025 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68a 68b 68c 69 70 71 72 73 74 10M0026 11M0359 —– 31Z7010 11M0353 30Z0992 20Z0787 40M0614 40H0046 Cavity Relay Board Fan Control Pcb PCB Stand-off Door Spring Kit Transformer Transformer Spacer Safe Edge Cover Capacitor Clip Capacitor L/H Capacitor R/H Protective Boot Nomex
Component layout: TA1725 & TA1925 70 61 73 71 56 68a 74 68b 68c 65 62 58 57 63 49 54 52 55 53 50 51 52 No Description HD1025 HD1425 HD1725 HD1925 HD2025 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68a 68b 68c 69 70 71 72 73 74 10M0026 11M0359 —– 31Z7010 11M0353 30Z0992 20Z0787 40M0614 40H0046 Cavity Relay Board Fan Control Pcb PCB Stand-off Door Spring Kit Transformer Transformer Spacer Safe Edge Cover Capacitor Clip Capacitor L/H Capacitor R/H Protective Boot Nomex Cov
Cavity components 81 80 82 80 79 77 No Description HD1025 HD1425 HD1725 HD1925 HD2025 77 78 79 80 81 82 20Z1355 31Z0098 40M0563 11M0140 40M0832 40M0508 Ceramic Base White Silastic Roof Stirrer Blade Assembly Box Launch Seal Tuning Stub Microcook Ovens 32Z3385 Issue 4 20Z1355 31Z0098 40M0563 11M0140 40M0832 40M0508 20Z1355 31Z0098 40M0563 11M0140 40M0832 40M0508 20Z1355 31Z0098 40M0563 11M0140 40M0832 40M0508 40M0853 31Z0098 40M0563 11M0140 40M0832 40M0539 TA 20Z1355 31Z0098 40M0877 11M0140 40M0
Door opening mechanism: Right side 86 96 97 90 92 91 95 97 95 97 No Description HD1025 HD1425 HD1725 HD1925 HD2025 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 20Z0310 20Z0309 31Z3013 31Z5012 30Z0284 30Z0010 20Z0710 —– —– —– 30Z0240 30Z0356 31Z0115 31Z3027 31Z5018 31Z4000 Door Guide Moulding L/H Door Guide Moulding R/H Solenoid Fixing Screw Solenoid Fixing Washer Door Solenoid (L/H) Door Solenoid (R/H) Solenoid Cork Washer Solenoid Plunger Moulded Rubber Stop Moulded Rubber Stop Fixing Scre
Door opening mechanism: Left side 85 89 92 91 95 No Description HD1025 HD1425 HD1725 HD1925 HD2025 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 20Z0310 20Z0309 31Z3013 31Z5012 30Z0284 30Z0010 20Z0710 —– —– —– 30Z0240 30Z0356 31Z0115 31Z3027 31Z5018 31Z4000 Door Guide Moulding L/H Door Guide Moulding R/H Solenoid Fixing Screw Solenoid Fixing Washer Door Solenoid (L/H) Door Solenoid (R/H) Solenoid Cork Washer Solenoid Plunger Moulded Rubber Stop Moulded Rubber Stop Fixing Screw Microswitch (Strai
TA 1725 and TA 1925: Turboaire hot air motor assembly 83 79 84 No Description HD1025 HD1425 HD1725 HD1925 HD2025 77 78 79 80 82 83 84 20Z1355 20Z1355 20Z1355 20Z1355 31Z0098 31Z0098 31Z0098 31Z0098 40M0563 40M0563 40M0563 40M0563 11M0140 11M0140 11M0140 11M0140 40M0508 40M0508 40M0508 40M0508 —– —– —– —– —– —– —– —– Ceramic Base White Silastic Roof Stirrer Blade Assembly Tuning Stub Hot Air Motor Assembly Cooling Sleeve Microcook Ovens 32Z3385 Issue 4 40M0853 31Z0098 40M0563 11M0140 40M0539 —– —–
TA 1725 and TA 1925 Fan control PCB – part no. 11M0261 This board provides a full temperature-control system for the Turboaire Hot Air Fan, this will need to be set up in accordance with the following procedure once replaced. It also monitors the Fan Motor performance, and sends a signal to the logic PCB Assembly to indicate that it is functioning correctly. The status of the various functions are indicated by the monitor LEDs.
TA 1725 and TA 1925: PCB board operation during oven use The operation of this PCB is best tested when the oven is in operation. You will need to have a pen and paper to hand in order to set up the Nozzle temperature. (see Adjusting the nozzle temperature below for further details).
Input wiring details U U Blue Blue L2 N 73 68A 68B 68C Green / Yellow Brown 101 102 102 Model HD1025 Model HD2025 No Description HD1025 HD1425 HD1725 HD1925 HD2025 68a 68b 68c 73 101 102 30Z0231 30Z0168 20Z1080 30Z0997 89W6010 31Z7052 Fuse Holder Fuse Fuse Cover Mains Filter Sleeve Clip Microcook Ovens 32Z3385 Issue 4 30Z0231 30Z0168 20Z1080 30Z0997 89W6010 31Z7052 30Z0231 30Z0168 20Z1080 30Z0997 89W6010 31Z7052 30Z0231 30Z0168 20Z1080 30Z0997 89W6010 31Z7052 TA 30Z0231 30Z0231 30Z016
Part number identification chart: No Description HD1025 HD1425 HD1725 HD1925 HD2025 1 2 3 4a 4b 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 40M0883 —– —– 31Z3022 31Z5012 31Z2071 —– 31Z2056 11M0302 40M0923 30Z0477 40M0919 40M0920 31Z4013 31Z3022 40M0839 40M0841 40M0840 Rear Cover Push Fit Feet Air filter Screw M5x16 M5 Star Washer Installation Label Self Adhesive Foam Tape Service History Label Door As
Part number identification chart: No Description HD1025 HD1425 HD1725 HD1925 HD2025 59 60 61 62 63 64 65 66 67 68a 68b 68c 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 31Z0167 —– 30Z0921 25Z1016 30Z0264 40M0884 11M0343 31Z0126 40M0509 30Z0231 30Z0168 20Z1080 30Z1011 30Z0283 —– —– 30Z0997 40M0492 31Z0280 30Z0382 20Z1355 31Z0098 40M0563 11M0140 40M0832 40M0508 —– —– 20Z0310 20Z0309 31Z3013 31Z5012 30Z0284 30Z0010 20Z0710 —– —– —– 30Z0240 30Z0356 3
Circuit diagram: Microcook HD 1025, HD1425, HD1725, HD1925, HD2025 Microcook Ovens 32Z3385 Issue 4 Page 31
Circuit diagram: Turboaire II XE (Single leaded) Part 1 Microcook Ovens 32Z3385 Issue 4 Page 32
Circuit Diagram: Turboaire II XE (Single leaded) Part 2 Microcook Ovens 32Z3385 Issue 4 Page 33
Circuit Diagram: Turboaire II XE (Twin leaded) Part 1 Microcook Ovens 32Z3385 Issue 4 Page 34
Circuit Diagram: Turboaire II XE (Twin leaded) Part 2 Microcook Ovens 32Z3385 Issue 4 Page 35
APPEDNDIX 1: KFC As Microcook HD1925 except the following parts: No Description 8 38 39 49 87 88 KFC Door Assembly Door Pocket (For Menu Card) Switch Panel Assy Logic Board Relay Board ( 2 Buzzers ) Menukey Assembly Top Panel Extrusion 11M0393 40M1060 11M0394 11M0395 11M0285 10C0148 40M1062 40 39 38 87 88 49 Microcook Ovens 32Z3385 Issue 4 Page 36
APPENDIX 2: Capacitors and Magnetrons Microcook HD & TA Models: Capacitors and Magnetrons PANASONIC MAGNETRON 30Z1171 Oven Model Capacitor LH Capacitor RH HD 2025 1.1µF 30Z1077 HD 1925 1.1µF 30Z1077 HD 1725 1.0µF 30Z1076 HD 1425 0.88µF 30Z1075 0.74µF 30Z0377 HD 1025 1.1µF 30Z1077 —— TA 1725 1.0µF 30Z1076 TA 1925 1.1µF 30Z1077 SANYO MAGNETRON Oven Model Capacitor LH Capacitor RH HD 2025 1.25µF 30Z1078 HD 1925 1.25µF 30Z1078 HD 1725 1.1µF 30Z1077 HD 1425 0.88µF 30Z1075 1.
APPENDIX 3: Cleaning procedure For the oven to operate at peak efficiency, the cavity, door and the air filters must be kept clean. A daily cleaning routine will ensure that you comply with the required hygiene standards and will help to maintain and prolong the efficiency of your oven. Follow the SAFETY INSTRUCTIONS at the beginning of this manual. • ALWAYS switch off at the electrical supply.
APPENDIX 4: MenuKey download procedure The MenuKey™ System automatically changes all the cooking programs on the numbered icon pads with the turn of a key. To change the menus on the oven: 1 Ensure the power switch is off. 2 Lift the MenuKey cover in the front panel of the oven and put the key in the keyhole Turn the key clockwise to the stop ( ¼ turn ). Do not remove the key at this stage. 3 Switch the power switch on.
Manual corrections and modifications Whilst every effort has been made to ensure that the information contained in this manual is accurate and complete, if you believe that an error has been made, or if you have any suggestions for how the manual could be improved, please fill in and return this form. A review of any forms returned will be made on a regular basis, and the manual will be updated if required.
