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Good questions all beyond my knowledge. Need a Lennox tech to answer.

I think I figured it out. I removed the filter and opened all vents. That removed the E311 message. It also switched the furnace into the second...

Time to call for service. Sounds like there is an airflow issue, possibly due to the furnace being oversized. Maybe registers or returns are...

Ok, maybe this provides a clue. Furnace has been off for a while. Went to check codes. Found "E311", which means: "The heat firing rate has been...

Thanks. I took a look at the furnace while it was running. I saw the number 1 blinking a few times, then other numbers and letters (3,4,5, E)...

With the Nest app you can manage up to 20 thermostats for one house: https://support.google.com/googlenest/answer/9293015?hl=en I believe that it...

Yes you should hear a lower fan speed for stage 1. At the furnace itself most have a status LED that you can see through a plastic portal. The...

Thanks...let me clarify...I am looking for a dashboard system just to monitor the temps so I don't have to go in six different rooms to check temps. ...

Even with the Nest Hub you won't get that. The Nest app will show and control all thermostats but each one is independent. The only thing that is...

What is the reason to replace the zone controllers you have? Since you have separate air handlers it would be difficult to combine everything into...

This thread is very helpful, so thank you to all who have contributed! I have a very similar equipment set up as Cold_in_CT, but a different...

Further testing results are the 12,000 bedroom Ge will bring the room from 55 to 70 in about an hour. Compressor does operate even at 30 degrees....