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iHeat operation guide: 12063-A 01-13
Checking the LED lights
You can check the LED lights through the narrow viewing panel on the control box lid. Do not remove the control
box lid as there is a risk of electric shock due to high voltage.
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One or more green lights—you have power
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Red flashing light—an error has occurred
Bleeding air from the system
Sometimes air can get trapped in the iHeat circuit which can affect the performance of the system. This can be
easily fixed by operating the easing gear on the pressure relief valve for approximately two minutes.
To avoid burns (water can come out of the unit at 75 °C), wait until the water heater cools as hot water may drain
from the unit if there has been recent hot water use. Turn off the gas and power to the Infinity.
The pressure relief valve of the iHeat is located in between the Rinnai Infinity piping (as shown below). To bleed air
from the system gently raise the easing gear and hold open for approximately two minutes. If air is in the system it
will come ‘sputtering’ out—just like air in your water pipes. To close gently lower the easing gear.
Viewing panel
Lift and lower gently
