Refrigerant-level diagnostics for Sub-Zero units that run but don’t cool, or don’t run at all — the most technical repair category, and the one most repair companies get wrong.
Sub-Zero sealed system diagnostics
Sealed-system work requires pressure testing and a real diagnosis — not a compressor swap on a guess.
A flat $99 diagnostic fee — waived when you move forward with the repair.
Generally yes, because it involves refrigerant recovery and recharge — we’ll always give you the number before starting.
Depends on the unit’s age and the rest of its condition — see our Repair or Replace guide for the actual math.
Most sealed-system repairs, including refrigerant recovery and recharge, are completed in a single visit of 2–4 hours.
Yes — we match the refrigerant type and charge specified for your unit’s model and age.
The clearest sign is a compressor that runs continuously without the unit ever reaching temperature — that pattern is what prompts a sealed-system diagnostic.
Yes — sealed-system repairs get the same up-to-365-day labor and parts warranty as any other repair.
Same-day and next-day appointments across Newport Beach and Orange County.
Call (949) 848-3329