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View Full Version : How do I change the filter for the chronotherm I've plus


starla66
Aug 4, 2010, 04:19 PM
My unit is blinking that I need to change the filter. Where is that located?

NorthernHeat
Aug 4, 2010, 04:44 PM
The filter is in the furnace, or on the side of the furnace, or above it, or in the ceiling or even a wall of the house. It could also be inside the top of the furnace.

The thermostat warning is just a reminder, see the owners manual to find out how to reset the reminder. Often in those old Chronotherm thermostats the instructions are printed on the door of it.