RUNASO RV Service

Certified RV Service Hamilton Based, Ontario Wide Service

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Rooftop AC Repair

Diagnose and repair RV rooftop air conditioning systems to restore reliable cooling, proper airflow, and safe electrical operation.

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Quick Service​ Overview

Mobile & In-Shop Service

Final Availability may depend on RV size, condition, and access.

  • Hamilton Region (Ancaster, Dundas, Flamborough, Glanbrook, Stoney Creek, Waterdown, Downtown Hamilton, East Hamilton, Mountain)
  • Niagara Region (St. Catharines, Niagara Falls, Welland, Fort Erie, Thorold, Grimsby, Lincoln, Niagara-on-the-Lake, Pelham, Wainfleet, West Lincoln)
  • Halton Region (Burlington, Oakville, Milton, Halton Hills)
  • Peel Region (Brampton, Mississauga, Caledon)
  • Wellington County (Guelph, Fergus, Elora, Centre Wellington, Puslinch)
  • Haldimand County (Caledonia, Cayuga)
  • Brant County (Brantford, Paris)
  • Toronto (Downtown Toronto, North York, Scarborough, Etobicoke, York, East York)

Accurate AC Diagnosis

We identify whether the issue is electrical, mechanical, airflow-related, or control-related before any repair.

Restore Cooling Performance

Repairs focus on restoring proper cooling, airflow, and system reliability.

RV-Specific AC Systems

Rooftop RV air conditioners operate differently from residential or automotive systems.

Common Problems We Fix

Rooftop AC problems often start with reduced cooling or airflow and can progress into electrical failures if ignored.

AC not cooling properly

Caused by airflow restrictions, electrical issues, or failing components.

AC turns on but shuts off unexpectedly

Often related to control boards, capacitors, or voltage problems.

Weak or inconsistent airflow

Blocked ducts, fan issues, or internal obstructions are common causes.

Unusual noises or vibration

Fan imbalance, loose components, or mounting issues can create excessive noise.

AC does not power on

Electrical supply issues, control failures, or internal faults may be present.

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Our Solution

RUNASO repairs rooftop AC systems using a structured diagnostic approach. We evaluate electrical supply, airflow, internal components, and control systems to identify the root cause before performing targeted repairs—avoiding unnecessary replacements.

Electrical & Control Testing

We test power delivery, capacitors, control boards, and safety circuits.

Airflow & Mechanical Inspection

Fans, ducts, and internal components are inspected for proper operation.

Operational Verification

The AC system is tested under real operating conditions after repair.

What's Included

Rooftop AC Inspection

Inspection of electrical supply, controls, airflow, and internal components.

Diagnostic Testing

Testing to identify electrical faults, airflow restrictions, or component failure.

Targeted Repair

Repair or replacement of faulty components as required.

Performance Testing

Verification of cooling performance and stable operation.

What's Not Included

Complete AC unit replacement unless separately quoted.

Refrigerant system recharging or sealed system repairs.

How The Service Works

Initial AC Assessment

We assess cooling performance, airflow, and system behavior.

Diagnosis & Approval

Findings and repair options are explained before work begins.

Repair & Testing

Repairs are completed and tested for reliable operation.

Pricing

Rooftop AC repair pricing is inspection-based. After diagnosing the issue, a clear quote is provided before any repairs are performed. No hidden fees.

Nature of the AC issue

Accessibility of rooftop components

Time required for diagnosis

Parts required (if any)

Why Choose RUNASO

RV AC Experience

Rooftop AC systems require RV-specific knowledge—not residential HVAC methods.

Diagnosis Before Replacement

We avoid unnecessary AC replacements by fixing the actual problem.

Safe & Reliable Repairs

Electrical safety and system reliability are always prioritized.

Testimonials

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Frequently Asked Questions​

This is commonly caused by low refrigerant levels, dirty condenser or evaporator coils, airflow restrictions, electrical issues, or failing internal components.
Yes. Clogged or dirty filters restrict airflow, causing the AC to work harder while delivering less cooling and potentially leading to component strain.
Freezing can occur due to poor airflow, low refrigerant, dirty coils, or operating the AC in low outdoor temperatures for extended periods.
Unusual noises often indicate loose mounting hardware, worn fan motors, damaged shrouds, or internal component wear.
Light condensation drainage is normal, but excessive or interior leaking may indicate clogged drain channels, improper installation, or seal failure.
Yes. Low voltage, faulty capacitors, wiring issues, or control board problems can prevent the AC from operating efficiently or starting properly.
Diagnosis typically includes airflow testing, electrical checks, component inspection, refrigerant evaluation, and verification of thermostat communication.
If seal degradation is found, proper resealing is recommended to prevent water intrusion, air leaks, and vibration-related issues.
Yes. Continued operation with unresolved issues can lead to compressor damage, electrical failure, and higher repair costs over time.
Yes. Many issues can be repaired without full replacement. Repair is often the more cost-effective option when core components remain in good condition.
Most repairs can be completed within a few hours, depending on the issue and part availability. Complex electrical or refrigerant issues may take longer.
Inspection is recommended annually, before hot travel seasons, or whenever cooling performance, noise, or airflow changes are noticed.

Schedule a Rooftop AC Inspection

Rooftop AC issues can quickly turn into comfort and electrical problems if not diagnosed correctly.
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