AC Repair in Whitehall, MT

A run capacitor that has drifted out of tolerance, a pitted contactor, a low charge from a slow leak at a flare or service valve, a condenser fan motor with dry bearings, a clogged condensate drain tripping a float switch, or a filter and coil so loaded that the evaporator freezes solid. Those cover most calls we take.

Each has a distinct signature on gauges and meters, which is why measurement beats guesswork. Adding refrigerant to a system that is low because it leaks just buys a few weeks and puts the same problem back on your calendar.

We start with airflow, because a large share of cooling complaints are airflow problems wearing a refrigerant costume. Filter condition, static pressure, blower operation and coil cleanliness come first.

Then the refrigerant circuit: suction and liquid pressures, superheat and subcooling, compressor amp draw against rating, capacitor microfarads, contactor condition, and line temperatures. That combination separates a low charge from a restriction, a failing compressor from a failing capacitor, and a metering device problem from a leak.

A frozen coil is a symptom, never the fault. It means the coil is either starved of air or starved of refrigerant. We thaw it, find which, and fix the cause — otherwise it freezes again the next hot afternoon.

Leaks get located rather than assumed: electronic detection, soap and, where warranted, nitrogen pressure testing. We repair the joint, evacuate properly, and weigh in the correct charge so the system holds.