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EG4 6000XP fan issue…

Does the EG4 website show the inverter temperature? I can't remember as I don't normally use it. Solar Assistant does which is what I use. It would be good to know if the inverter "thinks" it's running hot or if for some reason it is. You might remove the grills on the right side and temporarily take out the filter material and see if there is any change.
Unfortunately I couldn’t find any temp measurement for the inverter, the battery has been a constant 68-70F / 20-21C. I did remove the filter for a time the other day, with no change. I brought up the possibility of a faulty temp sensor to a tech, but that didn’t go anywhere. I do believe the lower fan works as intended and does come on around the 300W input as stated by EG4, and will push some lukewarm air out when it starts. The other two fans just run if put under a light load, just pushing cold air without stopping. This can’t be beneficial to the longevity of the fans, they are pulling over 1.5 amps if running full speed, plus they aren’t quite. From what I’ve read from others, this isn’t “Normal” from how their units are operating.
 
In the Data History section of the EG4 Monitoring site (web based), you can export the data in Excel format. There are some temperature columns in there. I suspect that one is for the PV, one for one leg of the inverter, and one for the other leg of the inverter. On the EG4 Forum, I've asked them for a list of the variables and definitions but have not had a response yet.

Nothing that I've seen on the monitoring page and nothing in the phone app other than battery temps.
 

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In the Data History section of the EG4 Monitoring site (web based), you can export the data in Excel format. There are some temperature columns in there. I suspect that one is for the PV, one for one leg of the inverter, and one for the other leg of the inverter. On the EG4 Forum, I've asked them for a list of the variables and definitions but have not had a response yet.

Nothing that I've seen on the monitoring page and nothing in the phone app other than battery temps.
Thank you, I located the log tables, If someone gets back with you on what to look for, that would be very helpful to know.
 
The 6000XP has these modbus input registers with the following temperatures:
View attachment 270933
This is where I found a copy of the 6000XP modbus register PDF file: link
The load and discharge values and temp readings. Fans have run continuously since going over 100W of load, temps are a consistent 73-75 F. Temps run much higher when below 100W and fans only running periodically for a few minutes to cool off the inverter. Room temperature is 70 F.
 

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I just installed a unit today that was a Warranty Replacement from Signature Solar and am experiencing the exact same issue.

So far, the unit has been on for 9 hours and the fans are still running.
 
The load and discharge values and temp readings. Fans have run continuously since going over 100W of load, temps are a consistent 73-75 F. Temps run much higher when below 100W and fans only running periodically for a few minutes to cool off the inverter. Room temperature is 70 F.
I see the highest temp is 42 on presumably one of the heat sinks which is 107F enough to run all fans. When I initially installed my system ( 2 6000's) I tested it before I had AC running and the fans would ramp up pretty loud at temps up to about 110F reported by SA. I had to fashion a deflector between the two inverters to keep the warm air from the right hand unit from being ingested by the second as the left hand inverter was running it's fans a lot more than the right one. How much clearance do you have around your inverter? Any other sources of heat in the room?
 
I see the highest temp is 42 on presumably one of the heat sinks which is 107F enough to run all fans. When I initially installed my system ( 2 6000's) I tested it before I had AC running and the fans would ramp up pretty loud at temps up to about 110F reported by SA. I had to fashion a deflector between the two inverters to keep the warm air from the right hand unit from being ingested by the second as the left hand inverter was running it's fans a lot more than the right one. How much clearance do you have around your inverter? Any other sources of heat in the room?
The unit only reaches a temp of 40C+ when the loads are less than 100W and the fans periodically cycle on and off. The data shows the temperature rise up to 42C and then fans kick on until it cools off. Alternatively when the load exceeds 100W, the fans will run continuously and you can see ther temperature doesn’t fluctuate. Since the unit doesn’t respond to fan speed setting adjustments, I’m left with it running full speed for no reason, it’s not hot, and it’s eating up wattage to pull the fans for no reason. No other heat sources in the room. If this was the only 2 issues, I would say that the unit is poorly engineered, but due to the fact that the inverter won’t accept more than 1100W of generator power, and the technicians don’t know why, I am convinced the unit is faulty or there’s software issues.
 
I just installed a unit today that was a Warranty Replacement from Signature Solar and am experiencing the exact same issue.

So far, the unit has been on for 9 hours and the fans are still running.
What sort of loads are you pulling? Have you tried charging with a generator? If so what kind of input wattage are you getting?
 
The unit only reaches a temp of 40C+ when the loads are less than 100W and the fans periodically cycle on and off. The data shows the temperature rise up to 42C and then fans kick on until it cools off. Alternatively when the load exceeds 100W, the fans will run continuously and you can see ther temperature doesn’t fluctuate. Since the unit doesn’t respond to fan speed setting adjustments, I’m left with it running full speed for no reason, it’s not hot, and it’s eating up wattage to pull the fans for no reason. No other heat sources in the room. If this was the only 2 issues, I would say that the unit is poorly engineered, but due to the fact that the inverter won’t accept more than 1100W of generator power, and the technicians don’t know why, I am convinced the unit is faulty or there’s software issues.
What kind of generator do you have? I haven't tried mine yet as I intended to use a charger with it. I doubt my generator is clean enough to run direct though the inverters.

The fans on my inverters vary a lot depending on load, charging and pv. They scream in the am with 11k+ pv, 180 amps of charging and 250-5000w of load. But outside of that they ramp up and down proportional to conditions.
 
What kind of generator do you have? I haven't tried mine yet as I intended to use a charger with it. I doubt my generator is clean enough to run direct though the inverters.

The fans on my inverters vary a lot depending on load, charging and pv. They scream in the am with 11k+ pv, 180 amps of charging and 250-5000w of load. But outside of that they ramp up and down proportional to conditions.
I have a 120 volt 5k inverter generator, I am happy that the new firmware allows for 120 volt charging from a generator, but for some reason, unknown to the techs, the most wattage input has been approximately 1100W. Yesterday I was only getting around 900W. This time of year I only get about 3 hours of sunlight, and most days we are socked in with clouds, so it’s important to be able to charge the battery with a generator that doesn’t have to run all day. If I have to do that, I would be better off using the generator instead of my solar system.
 
What sort of loads are you pulling? Have you tried charging with a generator? If so what kind of input wattage are you getting?
It runs all the time. But it doesn’t drop below 400w load so far. And haven’t pulled over 2,000w yet.

As for charging, it is done with a Chargeverter.

The original inverter (bought in April of ‘24) worked like it should. This inverter is a replacement (I assume new, since nothing stated Refurb).
And the fans turn on as soon as it starts producing AC voltage.
 
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I have a 120 volt 5k inverter generator, I am happy that the new firmware allows for 120 volt charging from a generator, but for some reason, unknown to the techs, the most wattage input has been approximately 1100W. Yesterday I was only getting around 900W. This time of year I only get about 3 hours of sunlight, and most days we are socked in with clouds, so it’s important to be able to charge the battery with a generator that doesn’t have to run all day. If I have to do that, I would be better off using the generator instead of my solar system.
What is the max generator input power set to? The default is 5000w which is too much for your generator. Try about 3000w or less. The wave form may be so distorted that it can't transfer much power.
 
EG4 now is trying to pass my fans running constantly, as being normal, even though it is significantly below the parameters they laid out in this thread. Inverter is in a cool location, blowing cool air, no pv or other input, and constantly cycles up and down without stopping between 120-150 watts and runs full throttle above 150W. Not a hint of heat coming from the fans. Also they refused to acknowledge that the fans speed option on my unit is non responsive. Plus now after connecting my generator input, the unit won’t allow any more than 1100W of input. There’s 3 settings on the inverter that can affect this, and the Signature Solar techs are at a loss as to why it won’t do more.
This is so incredibly disappointing to read. Devastating, frankly.

I was about to order two 6000XPs and six 100Ah batteries for our vacation home, but now I'm instead going to be searching for a quieter inverter. I'm especially sensitive to noise because the inverters will be mounted in the hall between our living room and bedroom. I have a Delta Pro to power some critical loads at our house (furnace, dehumidifier and a 700W heater) and I barely hear the fan when standing right next to the unit. However I don't have any solar connected to the DP (as we don't have PVs here). At the vacation home I'm planning on 26 420W PVs. I can't imagine the noise level on a sunny day.

BTW, you can download a free smartphone decibel meter app (look for NIOSH app) and let us know what sound level reading you get. If you do, it's best to test from 10 feet in front of the sound source.
 
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Reminder: Heat must be dealt with. Fans are noisy. If the inverter uses fans rather than just a big heat sink to cool itself, it's going to be noisy. Period.

If you are going to purchase and use such an inverter, for heavens sake, plan for that. It's not a bug, it's a feature.
If you can't isolate / shield from fan noise, purchase a SCC that doesn't require fans for cooling. Victron makes some great ones, but you may need several because they can only make those heat sinks so big before it becomes impractical. It's OK if you use several of those SCCs in the same system. Your batteries won't care. You will, however, need a good-sized bus bar to make multiple SCC connections. Plan for that.

Producing electricity through PV panels and a charge controller creates heat as a byproduct of that production. That heat must be removed from the equipment. Fans and smaller heat sinks can do that, or large heat sinks can do that without fans. But you gotta get rid of the heat somehow.

The same applies to converting electricity from DC to AC through an inverter, although you don't normally need to deal with as much heat for that. So, the fan noise is usually less. But it's still there, and sometimes it happens while the fans are running to cool things down from the solar production. When all that's going on at once, it's even noisier.

Again, though, it's a feature, not a bug. Heat bad. Heat must go away. It's all in how that's accomplished. I don't think it can be much simpler than that.
 
Reminder: Heat must be dealt with. Fans are noisy. If the inverter uses fans rather than just a big heat sink to cool itself, it's going to be noisy. Period.

If you are going to purchase and use such an inverter, for heavens sake, plan for that. It's not a bug, it's a feature.
If you can't isolate / shield from fan noise, purchase a SCC that doesn't require fans for cooling. Victron makes some great ones, but you may need several because they can only make those heat sinks so big before it becomes impractical. It's OK if you use several of those SCCs in the same system. Your batteries won't care. You will, however, need a good-sized bus bar to make multiple SCC connections. Plan for that.

Producing electricity through PV panels and a charge controller creates heat as a byproduct of that production. That heat must be removed from the equipment. Fans and smaller heat sinks can do that, or large heat sinks can do that without fans. But you gotta get rid of the heat somehow.

The same applies to converting electricity from DC to AC through an inverter, although you don't normally need to deal with as much heat for that. So, the fan noise is usually less. But it's still there, and sometimes it happens while the fans are running to cool things down from the solar production. When all that's going on at once, it's even noisier.

Again, though, it's a feature, not a bug. Heat bad. Heat must go away. It's all in how that's accomplished. I don't think it can be much simpler than that.
It is possible take cooling fan noise into consideration when designing a product. Look at the range of sound ratings for the various eg4 units:

18kpv: 68dB
Flexboss21: <50dB

Just massively less noise yet the flexboss actually has more PV capability, because they took operating noise into consideration during design and component selection.
 
True. But still I doubt he will be happy no matter what inverter he installs in the interior of the house.
 
It is possible take cooling fan noise into consideration when designing a product. Look at the range of sound ratings for the various eg4 units:

18kpv: 68dB
Flexboss21: <50dB

Just massively less noise yet the flexboss actually has more PV capability, because they took operating noise into consideration during design and component selection.
True, but 50 db is a "quiet office". I don't want even a quiet office next to my bedroom, and most solar equipment with active cooling isn't that quiet. I just think too many people fail to think about what the equipment will sound like in normal operation. If you value silence, plan around that and design your space (and make your equipment purchases) accordingly.
 
Not "in the wall," but mounted on the wall. Actually, I've never seen an inverter mounted in the wall.
I've already been corrected on that but the fact remains you will be disappointed with any inverter mounted in a hallway near your living spaces.
 
I've already been corrected on that but the fact remains you will be disappointed with any inverter mounted in a hallway near your living spaces.
Bummer. There is a shed attached to the cabin, but I'm a bit concerned about mounting inverters in there. It's not heated and at latitude 45, the batteries would, I imagine, take a lot of juice to self-heat.
 

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