Dirty Condenser Coils
Dust and kitchen grease stop heat escaping, so the box still warms even while the compressor runs.
A warm commercial fridge is a food-safety call, not a wait-and-see problem. Potomac Refrigerator Pros takes commercial calls by phone only, Monday to Sunday, 8:00 AM to 10:00 PM. Call (301) 368-8305 with the unit type, the box temperature, and what you hear. A written estimate comes before work starts — no form, no email booking.
Serving Potomac, North Potomac and Montgomery County, MD, centered in Potomac Village, MD 20854
Name the exact symptom when you call, because a commercial unit that is not cooling is not one fault: a reach-in or prep table running warm while a second unit stays cold; a display case that cools, then warms again between cycles; food spoiling early; water pooling under a unit; or a unit that runs constantly and never reaches temperature. A thermometer reading helps more than a guess — a fridge at or below 40°F, per USDA and FoodSafety.gov guidance. For a business, the cost of waiting is not only food: perishables above 40°F for over 2 hours — 1 hour if above 90°F — should be discarded, and a closed unit holds about 4 hours. Potomac adds pressure: July highs around 89°F in the wider Washington, DC area, humid summers, and hard WSSC Potomac water at 120–130 mg/L, which affects filters and water-fed equipment, leave a weak seal, dirty coils, or a tired fan little margin before food warms.
No single symptom maps to one part. Diagnosis is inspection, with a multimeter and temperature readings, not a phone guess.
Dust and kitchen grease stop heat escaping, so the box still warms even while the compressor runs.
Cold air is not moving through the cabinet, so one section warms while another stays cold.
A frost-locked coil blocks airflow; warming is slow, then sudden, and often returns after a short thaw.
Cycling and warming between cycles, or running constantly, often points here.
A torn gasket or sagging door lets humid air in, so the compressor runs nonstop and frost builds.
Clicking at startup, or never reaching temperature. Technician-only, and usually the most expensive outcome.
Stock packed against vents, or a case loaded past its airflow design, mimics a broken unit.
Check power, breaker, and GFCI; check the setting, clear vents, and whether doors close fully; take a thermometer reading and write it down; look at seals for tears or flattening. Keep doors closed, move perishables to a working cold unit if you can, and do not taste food to check it. Perishables above 40°F for over 2 hours — 1 hour if above 90°F — should be discarded, per FoodSafety.gov. Stop and call if water reaches electrics, you smell burning, or the breaker trips again. Never remove covers or touch refrigerant lines. If the unit holds food for customers, tell the caller on the phone so urgency is judged honestly.
Call (301) 368-8305 with the unit type — reach-in, prep table, display case, or under-counter — plus brand and model if known, the box temperature, noises, water on the floor, and your area or ZIP code.
Diagnose on site: temperatures, voltage, thermostat, board, fans, defrost parts, coils, airflow, drain, and seals are tested. The failed part is named, not guessed.
Written estimate before work: plain-language diagnosis and estimate first, and you decide. A sealed-system failure, with the replacement comparison and the downtime cost of waiting, comes before any work.
Repair and test: the failed part is replaced, coils are cleaned, and the drain is cleared where needed. Temperatures are checked again — fridge at or below 40°F — before the visit ends.
After: how to keep vents clear, check seals, and keep coils accessible, and what to watch before the next busy period. No fixed-for-life promise, and no warranty term — warranty terms are unconfirmed and must come from the partner.
No Potomac-specific repair price dataset exists, and none is invented here. Market figures, not a quote, and not a Potomac price. Your written estimate is the only price that counts.
$138–$350 typical, most around $220.
Source: Thumbtack refrigerator repair cost, 2026.
$200–$1,300, average $650, most $300–$1,000 — higher, likely including larger and sealed-system jobs.
Source: HomeAdvisor refrigerator repair cost, 2025.
| Part | National range |
|---|---|
| Coils | $100–$440 |
| Compressor | $200–$450 |
| Control board | $80–$800 |
| Ice maker | $60–$330 |
| Thermostat | $100–$440 |
| Seal | $50–$440 |
A DC/VA/MD practitioner guide (single firm, not a Potomac market rate) reports a $75 diagnostic and labour from $200, complex to $450, parts extra.
If repair costs more than about half a comparable new unit, replacement is usually favoured; if far less, repair usually wins. For a business unit, add two more factors the home 50% rule does not capture: food already at risk, and days without the unit.
A fan, defrost part, thermostat, sensor, seal, or valve is an easy yes at well under half the replacement price.
A sealed-system repair near half the replacement price is usually not the right call — get the replacement comparison first.
If food is already lost or the unit will sit warm for days waiting on a part, that loss belongs in the maths, not after it.
A replacement that needs different dimensions, plumbing, or electrical work can add several hundred dollars beyond the unit price.
Call (301) 368-8305, Monday to Sunday, 8:00 AM to 10:00 PM. Serving Potomac, North Potomac and Montgomery County, MD, centered in Potomac Village, MD 20854. Outside this area, say your ZIP code on the call so range can be checked honestly.
Work is performed by a Maryland licensed holder.
Not sure you are in range? Call with your ZIP code — we are always happy to check.
Montgomery County, MD
Montgomery County, MD
Montgomery County, MD
Montgomery County, MD
Montgomery County, MD
Montgomery County, MD
Montgomery County, MD
Montgomery County, MD
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Straight answers — diagnosis first, written estimate before work.
For this page, a commercial refrigerator means a business cold unit: a reach-in, a prep table, a display case, or an under-counter unit in a shop, office, or small food business. It does not mean a home fridge in a business premises, which is covered by the residential service pages instead.
Detail: If your unit is a large walk-in or a specialised system, name it on the call so scope can be checked honestly before a visit is booked; a unit outside the covered scope is not promised a repair here. Source: service scope as listed on this page; no client or site is named, because none is evidenced.
Treat a warm commercial fridge as urgent, because perishables above 40°F for more than 2 hours — 1 hour if it is above 90°F — should be discarded, per FoodSafety.gov, and a closed fridge holds only about 4 hours without power. Keep doors closed and move stock to a working cold unit if you can.
Detail: Do not taste food to check it, and do not store perishables outside, in a garage, or on a porch as a substitute fridge. If food serves customers, children, or older people, treat the warm unit as more urgent. Source: USDA and FoodSafety.gov food-safety guidance.
Have the unit type, the brand and model if known, the box temperature from a thermometer, whether water is on the floor, any new noise, and your area or ZIP code ready. Those five facts let the visit be judged for urgency and let the right part be considered before anyone travels.
Detail: If you do not know the model, the temperature reading and the symptom still help more than a guess. Photograph any discarded food before throwing it away, for your own records. Source: market research, symptom and process guidance.
Apply the 50% rule first: if the repair costs well under half a comparable new unit, repair usually wins, and if it costs near half or more, replacement is usually favoured. Then add food loss, downtime, part availability, and whether a replacement needs different dimensions, plumbing, or electrical work.
Detail: A single-part fix on an otherwise sound unit is an easy yes at any age, while a sealed-system repair on a unit already failing in several places rarely pays. Get the written estimate and the replacement comparison before deciding. Source: market research, repair-versus-replace framework.
Diagnosis first means temperatures, voltage, thermostat, board, fans, defrost parts, coils, airflow, drain, and seals are tested on site, the failed part is named, and a written estimate comes before any work starts. You decide after that estimate, including whether a replacement comparison makes more sense than the repair.
Detail: No price is promised on the phone, because the same warm unit can come from several different faults. National market figures on the cost section of this page are ranges only, not a Potomac price and not a quote. Source: market research, diagnosis honesty guidance.
This page covers business cold units including reach-ins, prep tables, display cases, and under-counter units; a walk-in or specialised system must be named on the call so its scope can be checked honestly. A unit outside the covered scope is not promised a repair, and no walk-in expertise is claimed here without that check.
Detail: That check protects a business from a wasted visit: the caller learns before booking whether the unit is in scope, what information is needed, and what happens next. Source: service scope as listed on this page; commercial coverage is conditional in the market research.
Commercial unit warm? Call (301) 368-8305 and tell us the unit type, box temperature, and symptoms. You get a written estimate before any work starts. No form, no email booking — phone only.
Call (301) 368-8305Service Area Map, centered on Potomac Village, MD 20854, as a geographic center only.