10/08/2026
There's one sound every appliance tech loves: a compressor kicking back on.
Last week a family in The Woodlands called us because the freezer side of their built-in Sub-Zero was slowly warming up. Ice cream going soft, food at risk, and a refrigerator built right into their custom cabinets.
When we opened the top compartment, the main control board was flickering. Every 3–5 seconds it shut off and powered back up, like a computer stuck rebooting. It never stayed on long enough to run the compressor.
We ordered the correct board and came back Monday. A new Sub-Zero board also has to be programmed for the exact model, so we did that. Then we heard the compressor kick on. Fridge saved, family relieved, and no need to tear out custom cabinetry for a new unit.
So what damages these boards? Usually it's power: surges, nearby lightning strikes, flickering power during storms, and even running a refrigerator on the wrong kind of generator. With storm season in our area, it's worth knowing how to protect your appliances.
We wrote it all up in plain language, including what causes it, the warning signs, and simple ways to protect your fridge:
👉 https://poweronappliance.com/sub-zero-control-board-replacement-woodlands/
If your refrigerator is clicking, resetting, or one side isn't cooling, give us a call: (346) 379-3809.
PowerOn Appliance Repair Service: family-run, local, and trusted by neighbors since 2018.