Accu-Steam G2, Service Manual

Page 1: ...d result in property damage serious injury or death Read and understand the installation operational maintenance instructions before installing servicing or operating this commercial appliance Serial...

Page 2: ...Accu Steam G2 Gas Service Manual PAGE 2 SP8042 1609 Toll Free 800 480 0415 Office 260 469 3040 Fax 260 493 8914 Email service accutemp net Web Site www accutemp net...

Page 3: ...an imminently hazardous situation which if unchanged will result in death or serious injury DANGER Indicates a potentially hazardous situation which if unchanged will result in minor or moderate inju...

Page 4: ...GIZED EQUIPMENT Unplug equipment prior to removing any components effected by electricity PERSONNEL INJURY HAZARD WHILE PICKING UP OR MOVING HEAVY EQUIPMENT Always use at least 2 people and proper lif...

Page 5: ...ation and service maintenance instructions thoroughly before installing or servicing this equipment WARNING Only QUALIFIED service technicians electricians should perform the equipment installation to...

Page 6: ...Accu Steam G2 Gas Service Manual PAGE 6 SP8042 1609 WARNING CAUTION NOTES ONLY QUALIFIED SERVICE TECHNICIANS SHOULD PERFORM MAINTENANCE ON THIS EQUIPMENT WARNING CAUTION GRIDDLE MAY HAVE SHARP EDGES...

Page 7: ...rts Identification Removal and Installation Fuses Control Relay Control Board Hi_Limit Control Board Transformer Heat Lamp Fault Timer Gas Valve Ignition Control Module Flame Sensor Igniter Infrared B...

Page 8: ...relay in the Hi Limit controller will be opened causing the 24VAC to be cut off from the ignition control DC relay and to the pilot valve coil of the gas combination valve closing the pilot valve 9 Th...

Page 9: ...o see a sufficiently high enough DC voltage level through the flame sense circuit the ignition module will disable 24VAC from the red harness and the timer will see the voltage potential from the chas...

Page 10: ...ERNAL VOLTAGE A B C NO NO BREAKER ON UNIT PLUGGED IN YES YES NO NO FAULT LIGHT ERROR CODE D E OVERTEMP YES HEAT ON H I NO UNIT HEATING UP HEAT LIGHT ON YES NO NO ERROR CODE E001 E002 PROPER TEMPERATUR...

Page 11: ...nput to transformer is present and there is no output replace transformer D Error Code E001 or E002 on display E001 Open Temp RTD sensor J3 1 J3 2 Check terminals for poor crimping E002 Shorted Temp R...

Page 12: ...e relay I Unit not heat ing up Check for 24 VAC to the gas valve If no voltage to the gas valve check for poor or loose connections or broken red wire between the heat lamp and the gas valve If there...

Page 13: ...Lock Unlocked Note If temperature is unable to be adjusted user may need to unlock the system by holding down the ON OFF S5 button and Temp S6 button together for 8 seconds or until ULOC is displayed...

Page 14: ...for five seconds will reset the soft ware back to the factory default settings Error Codes The control will display error codes for the following conditions E001 Displays when controller detects an O...

Page 15: ...opens and supplies gas to the burners when the control board calls for heat Ignition Control Module AT2E 1807 1 Takes reading from the flame sensor Receives input from temperature Controller and Hi Li...

Page 16: ...e panel 3 Replace fuse Hi Limit RTD Temp Sensor RTD Igniter Fuse Block Transformer Fault Timer Hi Limit Control board Ignition Control Module Main Control Board Control Relay Control Valves Tap Contro...

Page 17: ...nuts and washers securing board to panel remove panel 5 Reinstall in reverse order Hi Limit Control Board AT0E 3880 1 1 Unplug from wall receptacle 2 Lower front access panel by removing the screws i...

Page 18: ...r 1 Unplug from wall receptacle 2 Lower front access panel by removing the screws in the upper corners of the panel 3 Locate transformer and note the location of the wires and their terminals disconne...

Page 19: ...remove wires 4 Remove hardware securing module 5 Remove module 6 Reinstall in reverse order 1 Unplug from wall receptacle 2 Turn off gas supply and disconnect the unit from supply hose 3 Lower front a...

Page 20: ...tacle 2 Lower front access panel by removing the screws in the upper corners of the panel 3 Remove igniter wire 4 Remove screws and igniter 5 Reinstall in reverse order 6 Set new igniter gap between 1...

Page 21: ...the upper corners of the panel 3 Locate and remove RTD wires attached to the Hi Limit control Board 4 Remove nut securing RTD to griddle 5 Reinstall in reverse order RTD Resistance Chart RTD Testing...

Page 22: ...laced in parallel with the orange flame sense circuit To check millivolts attach one end of the adapter to the orange wire and the other to ground If the burner is lighting determine if the sensing si...

Page 23: ...w the appliance to heat up to at least 200 F First check the main burner regulator pressure Remove the rubber hose and replace with the manometer tube The pressure should be 5 WC for natural gas and 1...

Page 24: ...rush and or emery cloth Caution DO NOT use any abrasive that contains aluminum oxide This will leave a coating on the flame sensor that could cause the unit not to light X X Clean all gas orifices mak...

Page 25: ...WHT BLK RED YEL BLU HEAT RED RED BLK WHT 240V 208V 120V COM 24V RED ORN 75 A F2 75 A F1 IGN FAULT BLU WHT FAULT TIMER 1 2 3 1 2 J2 POWER INPUT DIGITAL CONTROLLER ON OFF 1 2 3 4 5 6 J7 24V GND 1 2 J3 S...

Page 26: ...eceived advance approval from AccuTemp factory service to perform the repair or replacement This warranty includes travel time not to exceed two hours and mileage not to exceed 50 miles 100 miles roun...

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