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Technician inspecting an outdoor air-conditioning unit

Air Conditioner Frozen Coil Diagnosis

About

Understanding the problem


Ice on an air-conditioning coil is a symptom, not a diagnosis. Restricted airflow, blower faults, control problems, or refrigerant-circuit issues can reduce coil temperature enough to cause icing.


What our service assessment covers


We assess filters, blower operation, airflow restrictions, coil condition, and refrigeration operation. Repair recommendations address the cause of the freeze-up and any resulting drainage problem.


Before you schedule


Tell us when ice first appeared and whether airflow weakened beforehand. Do not chip the coil or keep forcing cooling through heavy ice; contact us for model-appropriate next steps.


Sacramento-area service


Pro-Tech Service provides heating, air conditioning, commercial refrigeration, and ventilation service for Sacramento-area businesses. Contact us about service in Sacramento, Roseville, Elk Grove, Rocklin, Citrus Heights, Folsom, Rancho Cordova, Carmichael, West Sacramento, Woodland, Davis, Granite Bay, and El Dorado Hills. Confirm equipment support and appointment availability when scheduling.


Request equipment service


Call (916) 470-6035 or request service online. Include your location, make and model, current symptoms, and access details. We will discuss the next step for your equipment. Pricing, parts availability, and visit duration depend on the diagnosis.


Explore the related service or browse equipment service topics.


Stock photograph illustrating a commercial equipment setting; not a photograph of a Pro-Tech Service project.


Pro-Tech Service â€‹â€‹â€‹

P: (916) 470-6035

​Areas We Service 

​Sacramento, CA 

Roseville, CA

Rocklin, CA

Granite Bay, CA

Citrus Heights, CA

Woodland, CA 

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Carmichael, CA 

Elk Grove, CA

Rancho Cordova, CA

Folsom, CA

El Dorado Hills, CA

Davis, CA  

Commercial refrigeration service for Sacramento-area restaurants and businesses. We repair walk-in coolers, freezers, prep tables, ice machines and exhaust hood systems, with preventive maintenance to help keep equipment running reliably.

Pro-Tech Service provides heating, air conditioning, refrigeration and ventilation repairs and maintenance for commercial and industrial customers. Our equipment services include glycol chillers, draft beer cooling systems, reach-in refrigerators, walk-in freezers, ice machines and makeup air systems. Contact us with your equipment type, location and service needs.

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Pro-Tech Mechanical Service Contractor Lic #1001978

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