Commercial Kitchen Makeup Air Service
Makeup air not running, or not keeping up?
A failed or misbehaving MAU can leave the kitchen hot, cold, drafty, and deeply negative. TCS diagnoses the unit and its relationship to the exhaust system.
Commercial kitchen ventilation service across NYC and North Jersey
Warning Signs
Call when you see these symptoms.
Service Scope
What TCS checks and repairs.
Fan, motor, belts, and airflow
Blower rotation, motor operation, belt condition, sheave setup, filters, dampers, fan speed, and delivered airflow are checked.
Heat and freeze-protection faults
Burner enable, safeties, temperature controls, gas-side control signals, coils, freeze stats, and related interlocks are evaluated within the permitted service scope.
Starters, VFDs, sensors, and controls
TCS traces the command sequence through relays, contactors, overloads, drives, sensors, hood controls, and building interfaces.
Exhaust-to-supply relationship
The MAU is not judged in isolation. Exhaust operation, kitchen pressure, hood capture, and supply delivery are checked together.
Diagnostic Process
A measured path from symptom to cause.
Document symptoms
Confirm temperatures, timing, fault history, affected hoods, and whether the exhaust system is operating.
Check unit operation
Inspect airflow, mechanical components, safeties, power, control sequence, and heat enable.
Correct the fault
Repair the failed component or setup issue within the approved scope.
Verify the kitchen
Confirm stable unit operation and whether the pressure, comfort, or capture complaint changed.
Why TCS
Ventilation experience on the call.
Airflow and equipment are evaluated together.
Findings and readings are documented clearly.
Commercial kitchen fans, makeup air, airflow, and controls are evaluated as one connected system.
FAQ
Common service questions.
Why are the restaurant doors hard to open?
The kitchen may be under excessive negative pressure because exhaust airflow is greater than the replacement air reaching the building. A failed MAU, closed damper, slipping belt, wrong fan speed, or other air-distribution problem can cause it.
Can a makeup air problem make the kitchen hot?
Yes. A failed MAU can starve the hood system, disrupt capture, pull conditioned air from the dining room, or leave cooking heat in the kitchen. The complete exhaust and supply relationship needs to be checked.
Do you service CaptiveAire, Accurex, Greenheck, Gaylord, and Halton equipment?
TCS has commercial ventilation experience across these systems. Formal warranty authorization varies by manufacturer, product, territory, and assignment; warranty calls must be assigned or approved by the manufacturer.
Do you install gas piping?
This page covers diagnostic and equipment service. Any regulated gas-piping work is handled only when licensing, permits, and job scope allow it, or is coordinated with the appropriate licensed trade.
Related Services
The rest of the ventilation system matters.
Request Service
Describe the symptom, not the solution.
Send the brand, model, ZIP code, fault code, and rooftop-access information if available. TCS will review it directly.