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Uni Finish AC Services
calendar_month Book Service
verified Quiet Airflow Certified
graphic_eq Dynamic Balancing Precision
air Acoustic Calibration & Doorstep Care

AC Fan & Blower Repair
at Doorstep

Eliminate screeching noises, humming, vibration rattles, and weak airflow. Expert cross-flow cylindrical blower wheel alignment, bush bearing lubrication, and outdoor condenser fan motor repairs.

Diagnostic Inspection From
₹599 ₹899
calendar_month Book Inspection call +91 (800) 045-8920
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Laser Dynamic Wheel balancing
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High-Temp Lithium Shaft grease pack
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90-Day Spares Replacement warranty
Uni Finish technician inspecting squirrel-cage cylindrical blower and motor assembly inside indoor split air conditioner with precision tools
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Blower RPM & Balance
Calibrated to Factory CFM
0.02mm Runout
Silent Mode: < 26 dB(A)
HVAC Acoustic & Kinetic Diagnosis

Common Airflow & Noise Faults We Solve

Unusual sounds or declining throw distance signal mechanical stress that can prematurely destroy the compressor motor if ignored.

hearing
High Pitch Friction

Screeching or Chirping Noise

Caused by worn-out synthetic rubber bush bearings on the left idle shaft or hardened motor bearing seals, resulting in intense metal-to-metal rubbing.

Solution: High-Grade Bush Replacement
vibration
Imbalanced Rotational Mass

Severe Shaking or Rattling Casing

Snapped, warped, or missing cross-flow fan blades throw the centrifugal balance off center. This causes heavy vibration that cracks internal plastic brackets.

Solution: Dynamic Re-weighting / Wheel Swap
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Low Static Pressure

Weak or Uneven Airflow Delivery

Severe microbial sludge wedged inside cylindrical squirrel-cage micro-fins or a dropping microfarad rating on the motor start capacitor causing sluggish RPM.

Solution: Pressure Jet De-grime + Capacitor
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Driver / Stator Seizure

Indoor Blower Not Spinning at All

The AC turns on, but no air leaves the louvers. Root causes include PCB triac output malfunction, seized sleeve bearings, or burnt thermal fuses in the copper stator.

Solution: BLDC/AC Motor Re-winding & PCB Trace
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Thermal Compressor Trip Risk

Outdoor Condenser Fan Stalled

When the axial fan outside locks up, refrigerant vapor cannot reject heat. Head pressure spikes in seconds, tripping compressor overload protection within 3 minutes.

emergency Critical Condenser Protection

Our technicians carry universal dual-run capacitors, weatherproof axial motors, and anti-corrosive nylon fan blades directly in mobile service vans.

Turnaround: Prompt On-Site Service
Engineering Rigor

4-Stage Precision Workflow

We don't just spray oil. We isolate rotational harmonics and recalibrate air delivery to factory benchmark specifications.

01
stethoscope

Acoustic & Stethoscope Profiling

High-frequency mechanics stethoscopes identify exact bearing chatter vs blade turbulence across 5 fan speeds.

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02
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Blower Wheel Disassembly

Careful removal of evaporator coil casing, cross-flow barrel release, and digital optical tachometer runout inspection.

check_circle Zero fin breakage
03
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Synthetic Lubrication & Bush Pack

Installation of anti-vibration rubber damper bushings and dual-layer high-temperature polyurea grease.

check_circle 300°F thermal resistance
04
airwave

Anemometer Airflow CFM Check

Post-assembly wind velocity calibration ensuring volumetric throw reaches 450+ CFM and delta temperature matches factory curves.

check_circle Digital proof on completion
Upfront & Transparent

Standard Fan & Blower Rate Card

verified Zero hidden charges • Original OEM Grade Spares
Repair Scope & Component Applicability Warranty Estimated Price Action
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Blower Bearing & Bush Replacement Fixes squeaking, chirping & rotational friction
Split AC (0.8T - 2.5T) 90 Days ₹450 - ₹650 Book arrow_forward
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Cross-Flow Fan Blower Wheel Replacement OEM-balanced cylindrical drum with precision lock collar
Split & Tower ACs 90 Days ₹750 - ₹1,200 Book arrow_forward
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Indoor Fan Motor Repair / Run Capacitor Triac driver test, capacitor switch (1.5µF - 2.5µF)
Inverter & Non-Inverter 90 Days ₹650 - ₹1,100 Book arrow_forward
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Outdoor Condenser Fan Motor Replacement Heavy-duty weather-sealed copper motor with axial blade
Outdoor ODU Units 180 Days ₹1,400 - ₹2,400 Book arrow_forward
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Deep Dynamic Wheel De-grime & Balance Dismantled solvent coil cleaning & weight adjustment
All Split AC Models 30 Days ₹599 Book arrow_forward
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Uni Finish Guarantee: If the sound or vibration returns within the warranty period, technician re-visit and re-alignment are 100% free.

View Full Price Catalog →
Got Questions?

Frequently Asked Questions

Why is my AC blower making a rattling or vibration noise? expand_more
Rattling and continuous humming typically result from either broken fins on the cylindrical cross-flow wheel (which ruins centrifugal balance), or dried-out rubber bushes that cradle the blower shaft. When the bush hardens, high-speed rotation transmits violent vibrations straight into the plastic chassis.
Can a broken blower blade be repaired, or must the drum be replaced? expand_more
Because cylindrical blower wheels spin at 1,100 to 1,400 RPM, gluing or welding broken plastic fins causes centrifugal weight distortion. Even a 2-gram variance will wobble the motor shaft and burn out the bearings within weeks. Replacement with an OEM factory-balanced drum is always recommended for longevity.
Why is my airflow weak even after thoroughly washing the mesh filters? expand_more
Nylon mesh filters only trap coarse dust. Fine particulate matter and moisture combine into sticky sludge that packs the concave scoops of the blower fan wheel. When the scoops lose their aerodynamic curve, static throw pressure drops by up to 70%, even if the motor is spinning normally.
What warranty is provided on blower repairs and spare parts? expand_more
All brand-new replacement cross-flow fan drums, bush bearings, and run capacitors are covered by our 90-Day Spares Warranty. Outdoor condenser fan motors are backed by a 180-Day Comprehensive Warranty covering mechanical failure and thermal coil burn.
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Guaranteed Same-Day Visit

Restore Silent, High-Velocity Cooling Today

Do not let noisy fans or dragging bearings burn out your AC compressor. Our mobile engineers arrive fully equipped with calibrated replacements.

calendar_today Book Inspection (₹599) call +91 (800) 045-8920