Freezer never shuts off? We fix thermostats, clean coils, and replace gaskets. Same-day service, 90-day warranty. Average repair cost: $100–$350. Some causes are DIY-fixable — see below.
Freezer running constantly repair typically costs $100 to $350. Some causes are DIY-fixable, but professional diagnosis is recommended if the problem persists. Most repairs are completed in 1-2 hours with a free diagnostic visit.
A continuously running freezer in San Bruno's hillside fog belt is almost certainly battling humidity that it can't overcome. At 66°F summer highs, the thermal demand is minimal — but the persistent fog pooling in hillside garages creates extreme moisture conditions that drive constant compressor operation through compromised gaskets. San Bruno's 45,000 residents live in mid-century tract homes from 1958, where hillside garages can trap fog, elevating local humidity even beyond outdoor levels.
San Bruno's hillside fog-belt position creates extreme humidity that is the sole driver of constant running — the 66°F temperature provides zero thermal challenge. Fog pooling in hillside garages may amplify humidity beyond outdoor levels.
Dirty condenser coils
Damaged door gasket
Thermostat stuck
Low refrigerant
Hot ambient temperature
Dust, pet hair, and debris insulate the condenser coils, preventing heat dissipation. The compressor runs continuously trying to compensate. In Bay Area garages with limited ventilation and proximity to driveways, coils accumulate debris faster than in climate-controlled interiors.
Cost: $80–$150 | Time: 30-45 minutes
A compromised door seal allows warm air to enter continuously, raising the internal temperature. The thermostat never senses the target temperature is reached, so the compressor never cycles off. In humid Bay Area conditions, the constant warm moist air ingress amplifies the problem.
Cost: $80–$200 | Time: 30-60 minutes
A failed temperature control thermostat may remain in the closed (calling for cooling) position permanently, regardless of actual temperature. Power surges from PG&E grid fluctuations can damage electronic temperature controls in older Bay Area neighborhoods.
Cost: $100–$250 | Time: 45-75 minutes
A slow refrigerant leak reduces cooling capacity, causing the compressor to run endlessly without reaching set temperature. The freezer may be cool but not cold enough. Vibration from seismic activity unique to the Bay Area can stress brazed joints in evaporator tubing over years.
Cost: $200–$400 | Time: 2-3 hours
| Detail | Range |
|---|---|
| Diagnostic | Free |
| Typical repair cost | $100–$350 |
| Repair time | 1-2 hours |
| Warranty | 90 days parts + labor |
Cost varies by root cause. Exact quote after free diagnostic visit.
Constant-running repairs cost $100-$350 in San Bruno. Gasket replacement at $80-$150 is the critical fix. With 5 competitors, scheduling is adequate. Bay Area service calls range $89-$150.
In San Bruno, salt-laden marine air and persistent fog deposit corrosive moisture on metal surfaces and electronics. This can affect your appliance's evaporator coils: salt-laden moisture creates accelerated frost formation patterns that overwhelm defrost cycles Check defrost drain quarterly; ensure the garage or storage area is reasonably sealed from outside air
In San Bruno, sustained relative humidity above 60% promotes mold growth, condensation on cold surfaces, and accelerated corrosion. This can affect your appliance's door gasket: warm humid air rushing in when the door opens creates rapid frost buildup on the evaporator, overwhelming the defrost system Minimize door opening time; check that the gasket seals fully by closing a dollar bill in the door — it should resist pulling
In San Bruno, very low mineral content (<60 ppm tds) or sodium-softened water causes over-sudsing, rubber swelling, and reduced detergent rinsing. This can affect your appliance's ice formation quality: soft water produces clear but brittle ice that fractures into small shards, potentially jamming harvest mechanisms This is generally cosmetic; if ice jams occur, switch to a bypass filter that does not soften water for the freezer line
Free diagnostic visit for running constantly issues. Same-day appointments available in San Bruno.
Book Free DiagnosticReviewed by Sarah Chen, Appliance Diagnostics Engineer