Hitachi Room Unit User Manual (English)

Questions and Answers:

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Lorraine SpencerAug 2, 2025
Why is the red LED constantly on or flashing on my Hitachi Room Unit RF Receiver?
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  Jacob RiggsAug 2, 2025
  The red LED on the RF Receiver might be constantly on or flashing because the RF communication was lost due to the wrong location of the Room Unit. Try hooking the Room Unit back on the wall bracket or replace the Room Unit on the table stand in the position where RF communication was reliable. If this does not resolve the issue, there may be an RF communication fault.
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johnkingAug 10, 2025
What to do if my Hitachi Thermostat's LCD display works but the heating does not switch on?
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  Jennifer BernardAug 10, 2025
  If your Hitachi Thermostat's LCD display is working, but the heating isn't turning on, there could be a few reasons. First, ensure that there is power to the heating system. If there is power, the program may not be calling for heat. To resolve this, press the button and then press the to increase the temperature a few degrees above the current room temperature. The heating should come on after a few seconds. If the problem persists, there might be a wrong electrical connection, and you should call the installer to check the electrical connections.
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Travis MccoyAug 16, 2025
What to do if my Hitachi Thermostat Room Unit shows a flashing symbol on the LCD screen?
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  Michael AdamsAug 16, 2025
  A flashing symbol on the Hitachi Thermostat Room Unit's LCD screen indicates that the batteries are exhausted and need replacing. Replace them with new batteries.
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allison75Aug 25, 2025
How to fix a blank LCD screen on my Hitachi Thermostat Room Unit?
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  eshortAug 25, 2025
  If the LCD screen on your Hitachi Thermostat Room Unit is blank, here are a few things to check: * First, make sure that batteries are installed in the battery compartment and that the paper tab has been removed. * Next, verify that the batteries have been installed in the correct orientation. * Finally, if the batteries are old, replace them with new ones.