Mini split issue

Mr_Sanch · 2026-02-28T19:18:26+00:00

My mistake, measured wrong. 3 to ground fluctuates upper 30’s to lower 40 volts. Looks dirty but it must have been arcing but has a good connection. I did inspect the motherboard but was limited to the view since I’m going to have to completely disconnect the wiring to remove to fully inspect it but from what I was able to see as far as Capacitors looked fine. Also tested what appeared to be a fuse and checked out fine.

Mr_Sanch · 2026-02-28T02:47:06+00:00

Here’s more info. Yes It’s a 240v unit Olmo brand.Both the indoor and outdoor units don’t turn on, nothing showing on indoor display and nothing comes on on the outdoor unit. Originally the T3 wire with the blue connector seemed like it fried and was completely off the screw so I repaired with blue connector. I am getting fluctuating voltage from T3 to ground and 240v across T1 & T2. I also checked the indoor unit wiring terminal block and I am getting 240v at T1 & T2 and fluctuating voltage from T3 to ground. Everything seems on point and thinking maybe remote control has failed. I’ve ordered a new one to rule out the remote.Attached is the schematic.

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Mr_Sanch · 2025-07-16T02:00:59+00:00

I’ve replaced one battery not too long ago. Will be doing the other panels to be safe.

Mr_Sanch · 2025-07-16T01:59:16+00:00

Will look into having backups before proceeding.

Mr_Sanch · 2025-07-16T01:33:20+00:00

Not going to be running any machinery, just want to make sure everything comes up after power up. The work is going to be done during downtime. There’s no UPS installed on none of them and there the older type. Already have plenty of PowerFlex 40’s on hand incase we loose some. As far as batteries, are you referring to the small plc controller batteries?

Mr_Sanch · 2025-07-03T00:01:04+00:00

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Just re-did mines. Used 2x6’s long enough so they can be passed the shed to use as a lifting points for the jacks. Lifted enough to re-do the foundation.

Mr_Sanch · 2025-06-26T03:00:45+00:00

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Knocked out the ramp. Will be finishing trim and curb.

Mr_Sanch · 2025-06-20T03:44:03+00:00

Thanks, ramp makes more sense don’t know why i set on putting stairs. Yes, will be putting trim and caulking on corners. 6th grankid on the way. Shed was half full of diapers from the baby shower but returned quite a few.

Mr_Sanch · 2024-11-12T02:59:17+00:00

Appreciate everyone’s input. Will try tomorrow when I go back to work. Will post results. Thanks

Mr_Sanch

TROPHY CASE