Can any one tell me what the two lines mean on my HRV panel means, and how to fix it, the fans arnt working and will not work on " burnt toast" mode either. 
Can any one tell me what the two lines mean on my HRV panel means, and how to fix it, the fans arnt working and will not work on " burnt toast" mode either.
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Its apparently supposed to show temperatures in that space, so I'm guessing its not getting any data from the temperature sensors,
Sounds like time for the good old "switch off- switch back on again" and see where that lands,
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