American Water Heater RESIDENTIAL HYBRID ELECTRIC HEAT PUMP WATER HEATER Element Test OhmMeter

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Element Test (OhmMeter)

I. Preparing for the Test

1.Press the power button on the User Interface Module.

1.Turn off power to the water heater at the breaker or disconnect switch serving the water heater.

2.Verify there is no power at the incoming power connections to the water heater with an AC volt meter.

3.Remove the cover panel(s), then move the insulation away from the element. Do not damage the insulation.

4.Remove the thermostat cover(s).

5.Disconnect the wires from the element terminals.

IIA. Testing for a Burned Out Element

1.Complete Preparing for the Test before you proceed.

2.Measure the element’s resistance by placing a probe on each terminal. (See graphic at right.)

3.Compare your result with the following:

A.If the resistance is between 10 and 25 Ohms, the element is good. Proceed to Completing the Test.

B.If the meter shows no continuity, the element should be replaced (p. 24). Proceed to Completing the Test.

C.If the meter measures more than 25 Ohms, proceed to Testing for a Grounded Element.

IIB. Testing for a Grounded Element

1.Complete Preparing for the Test before you proceed.

2.Check for resistance as follows:

A.Place a probe on one of the element terminals and the other probe on the element flange or tank shell. Ensure a good ground connection.

B.Repeat the test for the other element terminal.

C.If both tests show infinite resistance, the element is not grounded. If either test shows less than infinite resistance, the element is defective and should be replaced (p. 24).

D.Proceed to Completing the Test.

Figure 13

III. Completing the Test

1.Replace the element(s) if necessary (p. 24).

2.Reconnect the terminal wires.

3.Reinstall the thermostat cover(s), put the insulation back in place, then reinstall the cover panel(s).

4.Make sure that the tank is full of water before reconnecting power.

A.Open a hot water faucet.

B.Once water flows smoothly from the hot water side of the faucet, all air has been purged from the tank and it is safe to energize the elements.

C.Reconnect power to the water heater.

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Contents HPE10260H045DV 60 GAL HPE10280H045DV 80 GAL Service HandbookTable of Contents Certifications and Approvals IntroductionTerms, Definitions and Formulas Explosion Hazard Safety PrecautionsInstallation Checklist Symptom Cause Solution Potential Installation IssuesDry Fire Element Protection Powered Anode OperationChecking the Powered Anode for Proper Operation Water Piping System Piping InstallationDischarge Line Temperature and Pressure Relief ValveTemperature & Pressure Relief Valve Closed System/Thermal ExpansionAir Filter Cleaning/Replacement General Service informationCleaning/Replacing the Air Filter Routine Preventive MaintenanceUser Interface Module Overview Operating Mode DescriptionsOperational Overview Heat Pump Water Heater OperationTurning the Unit On Adjusting Set Point TemperatureSelecting Operating Mode Operating Your Heat Pump Water HeaterHeat Pump Water Heater Control Board Overview 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 Heater Wiring Diagram Wiring Diagram for Models With RelayFIigure Wiring Diagram for Non-Relay ModelsScreen Message Meaning Accessing the Maintenance DisplayInterpreting the fault code history Accessing the Maintenance DisplayPreparing for the Test IIA. Testing for a Burned Out ElementIIB. Testing for a Grounded Element Element Test Continuity TesterElement Test OhmMeter Heating Element Replacement Relay Number Load Check Pins Energy Cutout ECO Switch TroubleshootingECO Function and Troubleshooting Resetting a tripped ECOChecking the Run Capacitor Removing the Top Housing Shroud Powered Anode Troubleshooting and ReplacementRemoving the Powered Anode Replacing the Powered AnodeValues with 240 VAC input Compressor Check Flow ChartCheck Voltage Resistance ± 5%Powered Anode Check Flow Chart UIM Fan Check Flow ChartFan Check Flow Chart Overview Temperature SensorsTemperature Sensor Resistance Measurement Sensor Connector Chart PinsChart #1 Resistance vs. Temperature ChartsChart #3 Pressure-Temperature Chart for Refrigerant R-134aImportant Do not damage the fan blades Cleaning the EvaporatorImportant Do not spray cleaner on the fan motor Problem Possible Cause TEST/CORRECTIVE Action Troubleshooting Common Service ProblemsCap T&P discharge pipe Operating CostsPopping, rumbling Drain valve, reliefValve, etc Crackling, gurglingFan Connect Fault Heat pump fan circuit is open Fault Code Troubleshooting GuideFault 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 Eeprom Fault Main board failure Main Control Board Crystal Fault Main board failureMain Control Board RAM Fault Main board failure Main Control Board ROM Fault Main board failurePower Anode Over Current Powered anode circuit not working Low Supply Voltage Fault Very low input voltageNo Display on User Interface Module UIM Power Anode ADC Error Powered anode circuit not workingDraining 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.

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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.
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