American Water Heater RESIDENTIAL HYBRID ELECTRIC HEAT PUMP WATER HEATER Drain valve, relief

Page 38

Troubleshooting Common Service Problems

PROBLEM

POSSIBLE CAUSE

TEST/CORRECTIVE

 

 

ACTION

LEAKS AROUND TANK

The threads are leaking and need

Insert a cotton swab between the

FITTINGS

to be resealed

jacket opening and the fitting. If

(e.g., drain valve, relief

 

the cotton absorbs water, follow

 

these steps:

valve, etc.):

 

Disconnect power, then drain the

 

 

tank (p.45).

 

 

Remove the fitting and put thread

 

 

sealant or Teflon tape on the

 

 

threads, then reinstall the fitting.

 

 

Refill tank (p.45).

 

 

Restore power.

 

 

See also “Leaks Around the

 

 

Elements”

 

The spud had developed a leak at

Call technical support before

 

the weld.

replacing the water heater

DRIPPING DRAIN VALVE:

Valve may be slightly open

Check to see if the drain valve

 

 

is closed tightly. If the leakage

 

 

cannot be stopped by tightening

 

 

the valve, replace it.

WATER, DISCOLORED:

Milky water: There may be build

Although milky water may not

 

up gases in the heated water

be completely eliminated, it can

 

(oxygen, chlorine, carbon dioxide,

be reduced by installing aerated

 

hydrogen sulfide, etc.)

faucets

NOISES

Scale / lime / mineral build up in

Treat the water heater with a

(Crackling, gurgling,

the water heater.

deliming solution (e.g. Mag-Erad

 

or Un-Lime). The directions for

popping, rumbling):

 

the product should be followed

 

 

explicitly.

NOISES

Water hammer.

To prevent damage to the water

(Pounding noises or

 

heater and plumbing system,

 

install a water hammer arrestor.

vibrations in pipes

 

 

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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 SystemClosed System/Thermal Expansion Temperature and Pressure Relief ValveTemperature & Pressure Relief Valve Discharge LineRoutine Preventive Maintenance General Service informationCleaning/Replacing the Air Filter Air Filter Cleaning/ReplacementHeat Pump Water Heater Operation Operating Mode DescriptionsOperational Overview User Interface Module OverviewOperating Your Heat Pump Water Heater Adjusting Set Point TemperatureSelecting Operating Mode 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 Accessing the Maintenance DisplayInterpreting the fault code history Screen Message MeaningElement Test Continuity Tester IIA. Testing for a Burned Out ElementIIB. Testing for a Grounded Element Preparing for the TestElement Test OhmMeter Heating Element Replacement Resetting a tripped ECO Energy Cutout ECO Switch TroubleshootingECO Function and Troubleshooting Relay Number Load Check PinsChecking the Run Capacitor Replacing the Powered Anode Powered Anode Troubleshooting and ReplacementRemoving the Powered Anode Removing the Top Housing Shroud± 5% Compressor Check Flow ChartCheck Voltage Resistance Values with 240 VAC inputPowered Anode Check Flow Chart Fan Check Flow Chart UIMFan Check Flow Chart Sensor Connector Chart Pins Temperature SensorsTemperature Sensor Resistance Measurement 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 pipeCrackling, gurgling Drain valve, reliefValve, etc 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 ROM Fault Main board failure Main Control Board Crystal Fault Main board failureMain Control Board RAM 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.
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