State Industries SHE50-100PE, SHE50-100NE Qualifications Qualified Service Agent, Service Warning

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ULTRA HIGH EFFICIENCY POWER VENT/POWER DIRECT VENT - SERVICE MANUAL

INTRODUCTION

This Service Manual is designed to be an aid in servicing and troubleshooting the 96% thermally efficient, 50 gallon, 100,000 Btu/hr residential and light duty commercial power vent - power direct vent model water heaters listed on the cover of this manual.The instructions, illustrations and procedures contained in this manual are used to verify proper operation and to diagnose and repair common service problems.

This manual does not replace or supersede the Instruction Manual that came with the water heater. Always refer to the Instruction Manual that came with the water heater for complete installation instructions. If the Instruction Manual is not available copies can be obtained from the manufacturers web site or by calling the technical support phone number shown on the water heater labeling.

QUALIFICATIONS - QUALIFIED SERVICE AGENT

Servicing the products referenced in this manual requires the ability (in the field involved) equivalent to that of a Qualified Service Agent as defined by the American National Standards Institute (ANSI) below. Installation skills such as plumbing, air supply, venting, gas supply, electrical supply are required in addition to diagnostic and electrical testing skills.

ANSI Z223.1 2006 Sec. 3.3.83: “Qualified Agency” - “Any individual, firm, corporation or company that either in person or through a representative is engaged in and is responsible for (a) the installation, testing or replacement of gas piping or (b) the connection, installation, testing, repair or servicing of appliances and equipment; that is experienced in such work; that is familiar with all precautions required; and that has complied with all the requirements of the authority having jurisdiction.”

SERVICE WARNING

If you are not qualified (as defined by ANSI above) and licensed or certified as required by the authority having jurisdiction to perform a given task do not attempt to perform any of the service or installation procedures described in this manual. If you do not understand the instructions given in this manual or do not feel confident in your abilities to perform a given task do not attempt to perform any procedures outlined in this manual.

IMPORTANT SERVICE REMINDER

When performing any troubleshooting step outlined in this Service Manual always consider the wiring and connectors between components. Perform a close visual inspection of all wiring and connectors to and from a given component before replacement. Ensure wires were stripped before being crimped in a wire connector, ensure wires are crimped tightly in their connectors, ensure connection pins in sockets and plugs are not damaged or worn, ensure plugs and sockets are mating properly and providing good contact.

Failure to perform this critical step or failing to perform this step thoroughly often results in needless down time, unnecessary parts replacement, and customer dissatisfaction.

Technical Literature Department

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Ashland City, TN © 2008

Servicing should only be performed by a Qualified Service Agent

 

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Contents Service Handbook Ultra High Efficiency Power VENT/POWER Direct Vent Qualifications Qualified Service Agent Service WarningImportant Service Reminder Tools Required Thermal Expansion Closed Water SystemsContaminated AIR AIR RequirementsMaximum Equivalent Length Requirements VentingNumber Maximum Pipe Elbows Length Feet Meters Service Notes VentingPipe Size Requirements Maximum Elbow RequirementsElectrical Requirements Service Notes ElectricalVAC 1Ø Power Supply Correctly Wired OutletInternal View HOW IT WorksBlower Service Notes BlowerBurner Service Notes Burner Flame SensorOn Next Burner & Blower RemovalBurner/Blower Removal Service Notes Blower Flange & Blower Adapter GasketsBlower VenturiGAS Valve Gas Valve RemovalGasket Orifice Service Notes Checking Gas Pressures GAS Pressure TestingService Notes Gas Pressure Adjustment GAS PressuresGas Pressures Normal State Activated State AIR Pressure SwitchesBlower Prover Switch Blocked Intake SwitchBlocked Exhaust Switch Blower Prover Failure AIR Pressure Switch OperationAIR Pressure Switch Testing Normal State TestOperational State Test Air Pressure Switch Parameters Pressure TestBlower Prover Blocked Intake Blocked Exhaust Page Flame Sensing Test Measuring Flame Sensing CurrentFlame Sensor Igniter Current Test Service Notes Hot Surface IgnitersIntroduction Control System FeaturesUIM Service Notes Button Pad Ribbon CableDiscreet Menu Contact Information Commercial & Residential Product DifferencesDesktop Screen Service Note Sequence of Operation DisplayStatus Icon Description Status IconsState Description Operational States ModesAction Display Operating SET Point AdjustmentControl System Menus ECO CCB Service Notes CCB ReplacementSocket Identification J10 J13 J15 J11 J16PIN # Description J3 Socket 120 VAC Power SupplyJ1 Socket Transformer J2 Socket 120 VAC To BlowerExt Use Yes Input Type Tstat Open RetryService Notes Polarity & Ground Wiring DiagramYES Sequence of OperationHeater Status Menu Resetting the control systemImportant Service Reminder Rough Starting Rough Operation NoteDisplayed Message CHECK/REPAIR CONDITION/INDICATES Control System UnresponsiveUIM Display Is Blank UIM is InoperableAC Reversed Fault MessagesUpper Probe Short Flame Probe ShortEnergy Cut Out ECO Flame Detect ErrorBlocked Inlet Blocked Exhaust Vent Perform ALL These Tests with Power Blower Prover OpenTurned on and a Call for Heat Active Low Igniter Current Rough Starting Rough Operation Note Ignition FailureCheck for 24 VAC to the Gas Valve solenoid coil Communication Failure Gas Valve FailureTennessee Waltz Parkway Ashland City, TN