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Joseph
 
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wrote in message
oups.com...
Hi there,

I have moved into a house with a heat pump and electric backup
'toaster'. When the fan is running, sometimes the auxiliary heat light
is on, and sometimes its not. Is this the backup electric resistance
heater coming on or what?


Yes, it supplements the heat pump when necessary. It can also indicate
a problem if it is running extensively in mild weather.


Also there is a switch for Emergency Heat, that you can turn on
manually and has a red light. What is this doing?


The "emergency heat" means you're heating with the "toasters" only and
the heat pump is disabled.

Joseph


Thanks very much!

Dean