Potential Installation Issues

Symptom

Cause

Solution

Temperature set to 60 ºF and not

Vacation mode is on

Turn off Vacation mode by pressing

adjustable

 

the Vacation button

Electric mode selected but the

Upon initial start up, the heat

No action is necessary.

heat pump is running

pump will run until the tank

If after heat pump operation has

 

temperature reaches the set

 

been verified and element heating

 

point; this is done so that the

 

is desired, lower the set point

 

heat pump operation can be

 

temperature to 95ºF. The heat

 

verified. The water heater

 

pump will shut off when the tank

 

will operate according to the

 

temperature is ≥ 95º F. Set the

 

selected mode after this first

 

temperature to the desired set point.

 

run.

 

The elements will now be used for

 

 

 

 

heating in Hybrid and Electric modes.

 

 

 

Power is applied to the unit, but

The unit is in Standby; the

Press the power button; it should turn

there is no display on the User

power button on the UIM is

green and the display should light

Interface Module (UIM)

RED

up. If the power button does not turn

 

 

green, remove the protective film

 

 

over the face of the UIM and re-try

 

 

the power button.

 

 

If the unit does not power up, cycle

 

 

power to the unit and re-try using a

 

 

thumb.

 

 

 

“Low Water Level Alarm” message

The tank is not completely

Purge air from the tank using the

displayed on the UIM

filled with water

procedure outlined in the “Dry Fire

 

 

Element Protection” section (p.8).

 

 

If the tank is properly filled, the unit

 

 

should operate normally.

 

 

 

“Heat Pump Fault” message

There are 12 potential causes

Refer to the Trouble Shooting section

displayed on the UIM

for this fault

for corrective actions (p.39-44)

Efficiency mode selected but

Ambient air or water

Heat pump safety lock out occurs if :

elements come on instead of heat

temperature outside the heat

• ambient air temperature is

pump

pump safe operating envelope

below 45º F or above 109º F;

 

 

 

 

• tank temperature is below 59º F

 

 

 

7

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American Water Heater HPE10260H045DV, HPE10280H045DV manual Potential Installation Issues, Symptom Cause Solution

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