If your thermostat does not display wi fi setup remove the thermostat faceplate from the wall plate for 30 seconds and then reattach it.
Honeywell thermostat wifi setup blinking.
If wi fi setup does not display enter the installer setup press and hold the fan and up arrow simultaneously for 5 10 seconds until the screen changes and use the rth6580wf1 user guide here or th6320wf1.
Thermostat set up continue to the thermostat set up subsection.
Most honeywell thermostats blink when in a time delay for the cooling or heating if it s a heat pump this time delay feature protects the compressor form cranking too soon following a short off cycle or a power outage.
If your thermostat s wi fi isn t working the solution depends on what you re experiencing.
When did your wi fi connection fail.
If you ve been away or haven t noticed this warning.
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Is the compressor running.
When did your wi fi connection fail.
A honeywell thermostat will flash a low battery signal for about one to two months before the batteries in the wall unit run out completely.