American Water Heater RESIDENTIAL HYBRID ELECTRIC HEAT PUMP WATER HEATER, HPE10280H045DV manual

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Fault Code Troubleshooting Guide

Power Anode Drive Voltage LT Tank Voltage (Powered anode circuit not working):

Anode shorted to tank or upper element-

Check for short circuit-

1.Disconnect the red wire from the tab on the anode; use an Ohm meter to check between the wire tab on the anode and the tank. A low reading (should be ≥ 1 mega-ohm) indicates a short.

2.If short, take out the upper element and re-check; if no longer short, make sure the upper element is a folded type, maximum 10 inches long. Replace if wrong element.

3.If the short persists, the anode may be bent and touching the tank. Remove the anode, see “Powered Anode Troubleshooting” (p.27), and carefully straighten if bent.

4.Check the anode for a short by placing one Ohm meter probe on the steel nut, the other on the tab connector. If resistance is low reading (should be ≥ 1 mega-ohm), replace the anode.

Power Anode ADC Error (Powered anode circuit not working):

Faulty control board-

Replace the control board.

If replacing the control board doesn’t resolve the issue, contact technical support.

Power Anode No Tank Voltage (Powered anode circuit not working):

Anode shorted to ground-

Anode may be shorted to tank or element. Check for short see “Powered Anode Flowchart” (p.29). Low water level-

Check water level, fill the tank if necessary.

Power Anode No Current Sense (Powered anode circuit not working):

Faulty control board-

Replace the control board.

If replacing the control board doesn’t resolve the issue, contact technical support.

Power Anode Wrong Voltage Feedback (Powered anode circuit not working):

Anode internally shorted, shorted to tank or upper element-

Refer to “Powered Anode Flowchart” (p.29) Control board faulty

If anode is not shorted in any way, replace control board.

No Display on User Interface Module (UIM):

Confirm that there is no power to the unit-

Determine if UIM or control board is faulty-

If the water heater heats water (compressor runs or elements turn on), troubleshoot the UIM

If the water heater does not heat water, check LED201 on the control board. If lit, assume control board is good. Troubleshoot the UIM and ribbon cable.

If not lit troubleshoot control board.

Troubleshoot UIM-

Turn off power at the circuit breaker/fuse box

Check for a loose connection of the ribbon cable at CN211 or CN215 on the control board.

Check the cable connection on the UIM PCB

Troubleshoot control board-

Check the fuses on the control board.

1.If good replace the control board. If replacing control board doesn’t resolve issue, call technical support.

2.If bad replace fuses and look for shorts to ground.

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Contents Service Handbook HPE10260H045DV 60 GAL HPE10280H045DV 80 GALTable of Contents Introduction Certifications and ApprovalsTerms, Definitions and Formulas Safety Precautions Explosion HazardInstallation Checklist Potential Installation Issues Symptom Cause SolutionDry Fire Element Protection Powered Anode OperationChecking the Powered Anode for Proper Operation Piping Installation Water Piping SystemTemperature and Pressure Relief Valve Temperature & Pressure Relief ValveClosed System/Thermal Expansion Discharge LineGeneral Service information Cleaning/Replacing the Air FilterRoutine Preventive Maintenance Air Filter Cleaning/ReplacementOperating Mode Descriptions Operational OverviewHeat Pump Water Heater Operation User Interface Module OverviewAdjusting Set Point Temperature Selecting Operating ModeOperating Your Heat Pump Water Heater Turning the Unit OnControl Board Overview Heat Pump Water Heater Control Board OverviewSection a of Control Board RY 203 Upper Element Relay CN 203 Powered AnodeSection B of Control Board Section C of Control Board CN 204 Upper and Lower tank water temperature sensorsCN 212 Temperature Sensors Section C of Control Board con’t Wiring Diagram for Models With Relay Heater Wiring DiagramWiring Diagram for Non-Relay Models FIigureAccessing the Maintenance Display Interpreting the fault code historyAccessing the Maintenance Display Screen Message MeaningIIA. Testing for a Burned Out Element IIB. Testing for a Grounded ElementElement Test Continuity Tester Preparing for the TestElement Test OhmMeter Heating Element Replacement Energy Cutout ECO Switch Troubleshooting ECO Function and TroubleshootingResetting a tripped ECO Relay Number Load Check PinsChecking the Run Capacitor Powered Anode Troubleshooting and Replacement Removing the Powered AnodeReplacing the Powered Anode Removing the Top Housing ShroudCompressor Check Flow Chart Check Voltage Resistance± 5% Values with 240 VAC inputPowered Anode Check Flow Chart Fan Check Flow Chart UIMFan Check Flow Chart Temperature Sensors Temperature Sensor Resistance MeasurementSensor Connector Chart Pins OverviewResistance vs. Temperature Charts Chart #1Pressure-Temperature Chart for Refrigerant R-134a Chart #3Important Do not damage the fan blades Cleaning the EvaporatorImportant Do not spray cleaner on the fan motor Troubleshooting Common Service Problems Problem Possible Cause TEST/CORRECTIVE ActionOperating Costs Cap T&P discharge pipeDrain valve, relief Valve, etcCrackling, gurgling Popping, rumblingFault Code Troubleshooting Guide Fan Connect Fault Heat pump fan circuit is openFault Code Troubleshooting Guide Heat Pump High Pressure Fault High pressure switch is open Low Water Level Alarm The tank is not full of waterHeat Pump Low Pressure Fault Lower pressure switch is open Main Control Board Crystal Fault Main board failure Main Control Board RAM Fault Main board failureMain Control Board ROM Fault Main board failure Main Control Board Eeprom Fault Main board failureLow Supply Voltage Fault Very low input voltage Power Anode Over Current Powered anode circuit not workingPower Anode ADC Error Powered anode circuit not working No Display on User Interface Module UIMDraining and Filling the Water Heater Draining and Filling the Water HeaterDisposal of Condensate Condensate Pump TroubleshootingCondensate Drain Maintenance Part Number

RESIDENTIAL HYBRID ELECTRIC HEAT PUMP WATER HEATER, HPE10260H045DV, HPE10280H045DV specifications

The American Water Heater HPE10280H045DV and HPE10260H045DV are pioneering residential hybrid electric heat pump water heaters designed to deliver energy-efficient performance while meeting the hot water demands of modern households. These innovative units fuse traditional electric heating with advanced heat pump technology, allowing for significant reductions in energy consumption compared to conventional electric water heaters.

One of the primary features of these hybrid models is their outstanding energy efficiency ratings. Both units typically achieve an impressive Energy Factor (EF) that reflects their ability to convert electricity into hot water. By utilizing ambient air to heat water, these heat pump water heaters pull in heat from the surrounding environment and transfer it to the water, thus consuming less electricity. This technology not only reduces energy bills but also decreases the overall carbon footprint of the home.

The HPE10280H045DV and HPE10260H045DV boast a sleek, compact design that allows for flexible installation options, making them suitable for various locations within a home. Their user-friendly digital interface provides homeowners with intuitive controls to manage temperature settings and monitor performance. These models are equipped with smart technology that includes an intuitive display for adjusting modes and settings. They feature selectable operating modes, including electric, heat pump, and hybrid, allowing users to choose the most efficient heating method based on current needs.

In terms of capacity, the HPE10280H045DV offers a substantial 80-gallon tank, while the HPE10260H045DV provides a 60-gallon capacity, ensuring that households of different sizes can enjoy ample hot water for showers, laundry, and dishwashing simultaneously. Both models are designed with durability in mind, featuring robust components and corrosion-resistant tanks that promise longevity and maintenance-free operations.

Another significant aspect of these hybrid water heaters is their whisper-quiet operation, which makes them ideal for installation in living spaces or areas close to bedrooms. The noise level is minimized by the efficient insulation and placement of the compressor, ensuring that the serenity of the home is maintained.

In summary, the American Water Heater HPE10280H045DV and HPE10260H045DV represent a leap forward in the water heating industry, combining innovative heat pump technology with user-friendly features, energy efficiency, and ample capacity, making them an excellent choice for environmentally conscious homeowners looking for reliable hot water solutions.