Frymaster H14 Series Electric Interface Board Diagnostic Chart, Diagnostic LED Legend

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7-11: ELECTRIC INTERFACE BOARD DIAGNOSTIC CHART

The following diagram and charts provide ten quick system checks that can be performed using only a multimeter.

			3	2	1
			6	5	4
			9	8	7
			12	11	10
			15	14	13
K1			K2	K3		K4
10	7	4	1		10	7	4	1
11	8	5	2		11	8	5	2
12	9	6	3		12	9	6	3

Note: The sealed relays are not replaceable. If a relay fails the interface board must be replaced.

	Diagnostic LED Legend
CMP	indicates power from 12V transformer
24	indicates power from 24V transformer
HI	(RH) indicates output (closed) from right Latch
	relay
HI	(LH) indicates output (closed) from left Latch relay
HT	(RH) indicates output from right Heat relay
HT	(LH) indicates output from left Heat relay
AL	(RH) indicates output (open) from right Latch relay
AL	(LH) indicates output (open) from left Latch relay

Meter Setting	Test	Pin		Pin		Results
12 VAC Power	50 VAC Scale	1 of J2		3 of J2	12-16 VAC
24 VAC Power	50 VAC Scale	2 of J2		Chassis	24-30	VAC
*Probe Resistance (RH)	R X 1000 OHMS	11 of J2		12 of J2	See Chart
*Probe Resistance (LH)	R X 1000 OHMS	3 of J1		2 of J1	See Chart
Hi-Limit Continuity (RH)	R X 1 OHMS	7 of J2		4 of J2	0 - OHMS
Hi-Limit Continuity (LH)	R X 1 OHMS	4 of J1		7 of J1	0 - OHMS
Latch Contactor Coil (RH)	R X 1 OHMS	8 of J2		Chassis	3-10 OHMS
Latch Contactor Coil (LH)	R X 1 OHMS	5 of J1		Chassis	3-10 OHMS
Heat Contactor Coil (RH)	R X 1 OHMS	9 of J2		Chassis	18-25	OHMS
Heat Contactor Coil (LH)	R X 1 OHMS	6 of J1		Chassis	18-25	OHMS

*Disconnect 15-Pin harness from the computer/controller before testing the probe circuit.

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Contents Frymaster H14 Series Electric Fryer Computers FCC Warranty Statement Parts Return Safety Information IntroductionGeneral Computer Information European Community CE Specific InformationShipping Damage Claim Procedure Service InformationInstallation Instructions Do not block the area around the base or under the fryersPower Requirements After Fryers Are Under The Fry Station HoodFrypot Boil-Out Introduction To The M-100B Cooking Computer Equipment Setup and Shutdown ProceduresOperating Fryers With M100B Cooking Computers ShutdownDescription M-100B Computer Operating Instructions Operating the Computer on Full-Vat FryersOperating the Computer on Split-Vat Fryers M-100B Computer Problem Condition Indicators Open Drain Valve IndicationRecovery Out of Range REC LOC 1 M-100B Computer Setup Mode How to Enter the Setup ModeM-100B Computer Set-Up and Programming Instructions How to Change the Computer’s Display Language How to Configure the Computer for Use on an Electric FryerHow to Change Computer Product/Temperature Displays How to Activate or Deactivate the Frypot BOIL-OUT Feature 2 M-100B Computer Programming Mode How to Enter the Program ModeHow to Reset the Computer to the Factory Defaults How to Change the Cooking Temperature Setpoint How to Enter a Product Name in a Test MenuPage How to Suppress a Shake, QA, or Duty Function How to Display Use Time Information How to Display the Product Cycle Accumulator InformationHow to Use the Filter Countdown Timer Operating Fryers With Analog Controllers Introduction to the Analog ControllerI J K L M N Analog Controller Operating Instructions Analog Controller High-Limit CheckPage Operating the BUILT-IN Filtration System Description FunctionSTEP-BY-STEP Filtration Instructions Page Page Page Page Page Page Page Care and Cleaning of Your Fryer and Filter System Water in the Filter PAN MSDU50 Preventive Maintenance and Troubleshooting Preventive Maintenance TroubleshootingComputer Panel Open Interface Board Visible Fryer Heating Oil Computer Panel Open Interface Board VisibleFrom Preceeding From Preceeding Is the AL LED illuminated? Controller Panel Open Interface Board Visible From Preceeding From Preceeding Pump Motor Actuation Filter System OperationService Procedures Replace ControllerReplace Interface Board Replace Temperature Probe Replace TransformerReplace Temperature Probe Replace Heating Element Replace Heating Element Remove the element mounting screws Left element- 9-pin Right element- 6-pin Connector Replace HIGH-LIMIT Replace Frypot Replace Contactor Contactor mounting screws BUILT-IN Filter System Service Procedures Filtration Problem ResolutionBUILT-IN Filter System Service Procedures FootPrint III Wiring Diagram Electric Interface Board Diagnostic Chart Diagnostic LED LegendWiring Diagrams Common Electric McDONALDS H14 SERIES- FULL-VATSimplified Common Electric McDONALDS H14 SERIES- DUAL-VAT GNDCommon Electric McDONALDS H14 SERIES- FULL-VAT- Export WYE Common Electric McDONALDS H14 SERIES- DUAL-VAT- Export WYE Wiring DIAGRAMS, Main McDonald’s DomesticMcDonald’s European Community CE McDonald’s European Community CE Prior To 9/98 McDonald’s European Community CE XBIH14 McDonald’s Domestic Contactor McDonald’s European Community CE WYE Contactor McDonald’s European Community CE XBIH14 Contactor McDonald’s 440/480V Contactor McDonald’s Delta CSA Contactor McDonald’s Domestic Control Cord McDonald’s English Control Cord Wiring DIAGRAMS, Filter Units Footprint III, Early ConfigurationFootprint III, Late Configuration H14 Series Electric Fryers Parts List AccessoriesPage Side , Cabinet 2 MH/BIH214, 314, 414, 514 Cabinet Assemblies Component Casters, Legs and Associated Hardware Component Box Assemblies/Associated Component Parts Page Control Panel Assembly Door Assembly Components Controller Assemblies Drain System Components Page McDonald’s Domestic, Dual-vat Elements and Related Components Component Hood Relay Box, Power Cords and Hood Cords Filter Base/Pan Assemblies 8.9.1 Filter Base Assemblies Filter Base Assembly, FootPrint Filter Pan Assemblies Filter Pan Assembly, Single FootPrint Filter Pump and Motor Assemblies Pump and Motor Assembly, 250V 50/60 Hz Page Flex Line Assembly, With Male/Female Ends Oil Return Linkage Assemblies and Components Frypot Assemblies and Drain Valve Components Thermostats and Related Components