Domestic ac freeze up

It's ducted. It was pretty cool that night

Is this ducted or standard air box? I addition to the good advice already given, keep in mind, if the outside temp is near 80 or lower, the inside coil temp will be below freezing.

I've seen one freeze when the divider between the supply air and the return air intake comes loose or leaking a lot of cold air into the return.

My neighbor's unit had a piece of plywood taped in with aluminium duct tape. It came loose.

popeyemth wrote:
Some causes:
1-low freon
2-restricted air flow (dirty,clogged)
3-freeze sensor has come loose/fallen
4-running fan on low speed in high humidity

Right on!

ADD:

5-plugged condensate drain

Chum lee

It was running on low. It was cool but probably a decent amount of humidity.

When it's humid outside I find I need to run our Dometic AC with fan set on high as it has frozen up on me a couple of times. Another time we had it freeze up is when we had a roof vent and a bedroom window partially open. No more issues now that we employ these tactics, it wasn't a big deal anyway as we just shut down AC for a few minutes to allow ice build-up to dissipate and restarted AC again without further issues.

Some causes:
1-low freon
2-restricted air flow (dirty,clogged)
3-freeze sensor has come loose/fallen
4-running fan on low speed in high humidity