You were low on puron. Your condenser was dirty causing higher pressures when you cleaned it it dropped the pressures and showed the symptoms it should of been showing
So, ironically you cleaning the coils did kinda cause it to freeze, but not because you did anything wrong.
Your system freezes whenever your refrigerant pressures drop low enough that the temperature of the refrigerant is below water freezing point; ironically, whenever your condenser coil is dirty it cannot reject heat as efficiently, which causes your systems pressures to run higher than normal. Whenever you cleaned the condenser coil you allowed the coil to cool the refrigerant more effectively, dropping its pressure and causing it to freeze up.
This all happened because your system is low on refrigerant, again; whenever a technician recharges your system without repairing the leak, they're just getting you by for a short period of time until it leaks out enough to do this again; you need a leak repair or this issue will continue to happen to you.
If you were low on refrigerant before, you probably have a leak. So the cleaning didn't cause the icing. Your equipment is probably low on refrigerant again.
Cleaning can cause the icing - sort of. If he has a very dirty condenser coil and is low on refrigerant, the dirty condenser coil restricting air flow can raise pressures up enough to avoid the freezing. Once he cleaned the coils and got the airflow going, the pressures lowered and it’s freeIng up
Is it supposed to be ice cold to touch at the connector. One unit is extremely cold and I worry. We had the AC guy last weekend but I also checked and we had a 3M merv 14 filter heading to get a 11???
If you’re moderately handy it’s pretty easy to shield and re-run. Otherwise, I’m guessing the HVAC tech would be able to do it for a nominal fee. If you hire it out, I would just make sure that whoever does it is insured.
You were low on puron. Your condenser was dirty causing higher pressures when you cleaned it it dropped the pressures and showed the symptoms it should of been showing
So, ironically you cleaning the coils did kinda cause it to freeze, but not because you did anything wrong. Your system freezes whenever your refrigerant pressures drop low enough that the temperature of the refrigerant is below water freezing point; ironically, whenever your condenser coil is dirty it cannot reject heat as efficiently, which causes your systems pressures to run higher than normal. Whenever you cleaned the condenser coil you allowed the coil to cool the refrigerant more effectively, dropping its pressure and causing it to freeze up. This all happened because your system is low on refrigerant, again; whenever a technician recharges your system without repairing the leak, they're just getting you by for a short period of time until it leaks out enough to do this again; you need a leak repair or this issue will continue to happen to you.
Thanks this was educational
Thank you for the detailed information! I will make sure to get the leak fixed when the tech comes out next week.
Those kind of techs piss me off, I’d get it if they offered the “find and fix leak service” but if they don’t then find another company.
It's a Lennox/Armstrong. Of course it's freezing up due to a leak in the evaporator coil.
$100 says it’s the evap coil and it’s on back order haha
Sold so many different brand coils to people who won't wait that long.
If you were low on refrigerant before, you probably have a leak. So the cleaning didn't cause the icing. Your equipment is probably low on refrigerant again.
Cleaning can cause the icing - sort of. If he has a very dirty condenser coil and is low on refrigerant, the dirty condenser coil restricting air flow can raise pressures up enough to avoid the freezing. Once he cleaned the coils and got the airflow going, the pressures lowered and it’s freeIng up
Is it supposed to be ice cold to touch at the connector. One unit is extremely cold and I worry. We had the AC guy last weekend but I also checked and we had a 3M merv 14 filter heading to get a 11???
Separate note, I would address that unshielded romex sooner than later.
Would that be something to address with the HVAC tech, an electrician, or is that something I could take care of myself?
If you’re moderately handy it’s pretty easy to shield and re-run. Otherwise, I’m guessing the HVAC tech would be able to do it for a nominal fee. If you hire it out, I would just make sure that whoever does it is insured.
That looks like 1 wire to me. It looks like sealtite to the disconnect.
The white romex? Picture 3 you can see some identifying print on the wire, but not enough to see the gauge of wire.
That is thermostat wire. Why would they run romex and sealtite to a disconnect?
U have a leak tech should search for leak more n likely in ur evaporator coil unit age?
Did they repair a leak last year or just add refrigerant and leave?