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Started By
Message
Nest E73 error code
Posted on 4/9/21 at 9:02 am
Posted on 4/9/21 at 9:02 am
Unit is about 1 year old. Nest is several years old-not sure generation, but not 1st.
I pried the Safe-T-Switch up, and no moisture in pipe. No breakers tripped. No GFCI tripped.
I know we lost power before this in case that's important. Second identical unit and Nest having no issues.
Next?
I pried the Safe-T-Switch up, and no moisture in pipe. No breakers tripped. No GFCI tripped.
I know we lost power before this in case that's important. Second identical unit and Nest having no issues.
Next?
3
Posted on 4/9/21 at 9:20 am to AlxTgr
never had that error code, but just changed out my two nest for some honeywell's as the downstairs nest was malfunctioning trying to get the heat strips to come on in my unit even though we had it on AC so that blower motor was constantly running. I had to replace the blower motor about a month ago because it was randomly starting and stopping even after the temp set point was reached. So I think the next cause the issue with the first blower and I happened to catch it before it caused the same issue with the new blower. So needless to say I am not a fan of the nest thermostats.
But I would assume that it is an issue with the nests if everything else looks good with the unit, but you will probably need a tech to check everything out.
But I would assume that it is an issue with the nests if everything else looks good with the unit, but you will probably need a tech to check everything out.
This post was edited on 4/9/21 at 9:22 am
Posted on 4/9/21 at 9:56 am to CrawDude
If this is in fact caused by the Nest, it will be my first problem ever. I love them.
If I do need to replace the Nests, what do you recommend? My installer was high on the Bryants.
quote:I payed for the you must come out whenever I call no matter what plan
HVAC repairs are not cheap.
If I do need to replace the Nests, what do you recommend? My installer was high on the Bryants.
Posted on 4/9/21 at 10:18 am to AlxTgr
Of course I can’t say your issue is with the NEST, and it does seem like those that use them love them, I just wanted you to be aware that HVAC techs on professional forums I frequent consider them problematic - I’ve never seen a HVAC tech on a HVAC forum praise them.
That said, the techs on the forum I linked like Honeywell’s and Ecobee’s and state they rarely see issues with them, and it what they use in their homes.
More expensive multistage/communicating HVAC systems might require a proprietary thermostat made/labeled by the HVAC manufacturer, but I assume you don’t have one of those systems.
That said, the techs on the forum I linked like Honeywell’s and Ecobee’s and state they rarely see issues with them, and it what they use in their homes.
More expensive multistage/communicating HVAC systems might require a proprietary thermostat made/labeled by the HVAC manufacturer, but I assume you don’t have one of those systems.
Posted on 4/9/21 at 10:38 am to CrawDude
Ecobee's are listed on the Bryant site. I may go with those. I have two stage cooling. An extra wire had to be added from my previous system.
Posted on 4/9/21 at 10:40 am to AlxTgr
Honeywell T-6
These are what I just had installed last week to replace the nest. I had one for about 4 years at my old house before we moved and never had an issue with it besides the occasional losing the wifi connection. They meet my needs fine where I can set a schedule. I was not a fan of the nests scheduling and learning what it would do some weird temps. I like the honeywells are smart thermostats but I don't need google trying to save me money by costing me money to take 4 hours to cool the house down when it went into ECO mode.
These are what I just had installed last week to replace the nest. I had one for about 4 years at my old house before we moved and never had an issue with it besides the occasional losing the wifi connection. They meet my needs fine where I can set a schedule. I was not a fan of the nests scheduling and learning what it would do some weird temps. I like the honeywells are smart thermostats but I don't need google trying to save me money by costing me money to take 4 hours to cool the house down when it went into ECO mode.
Posted on 4/9/21 at 11:20 am to AlxTgr
Nest people swapped out my thermostat free of charge and had it sitting at my door the next afternoon. I was very impressed.
Posted on 4/9/21 at 1:51 pm to idlewatcher
Tech came. It was a fuse, so not a Nest issue. But, as soon as that was fixed, it showed e103. Damnit!
Posted on 4/9/21 at 2:21 pm to AlxTgr
Honeywell
Posted on 4/22/21 at 2:11 pm to AlxTgr
So, I think the saga is over. After that unit was fixed, the second one started acting up. Another part bad in the outside unit. These are barely one year old. The company owner came by for the last one. He thinks it was from the power supply. We have lost power numerous times lately and there was a lot of work being done to the supply line into our neighborhood.
Posted on 4/22/21 at 2:26 pm to AlxTgr
You have a whole house surge protector, and a separate surge protectors for the HVAC condensor units? My understanding is even with a whole house surge protector one should have independent surge protectors for the condensers. Might be worth looking into, I suspect frequent power outages play hell on circuit boards.
Posted on 4/22/21 at 3:34 pm to CrawDude
I doubt I have any sort.
Posted on 4/22/21 at 4:03 pm to AlxTgr
LINK
E73 - No power to Rc wire detected.
E103 - The Nest thermostat has an overcurrent error.
I'm guessing you have a bad transformer. The overcurrent blew the fuse. Your tech probably replaced it with a higher amp fuse. Now your nest is getting too much current.
E73 - No power to Rc wire detected.
E103 - The Nest thermostat has an overcurrent error.
I'm guessing you have a bad transformer. The overcurrent blew the fuse. Your tech probably replaced it with a higher amp fuse. Now your nest is getting too much current.
Posted on 4/22/21 at 9:16 pm to TAMU-93
quote:Don't know what that is, but smallish black parts were replaced in both outside units.
I'm guessing you have a bad transformer
quote:This didn't happen.
Your tech probably replaced it with a higher amp fuse.
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