Faults and Solutions for Air Handling Units
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Frequently asked questions
Air Handling Unit Operates Noisy
Measurement of the air flow rate and adjusting it according to the appropriate values
Check the channel size and revise it if necessary
Check the fan capacity, replace if necessary
Replace the rotor
Adjust the balance
Air handling unit has high airflow
Air handling unit (air handler) is a HVAC system device to control heating, ventilating and air conditioning in a specific area.
Air handling unit consists of the following components;
- Fans
- Heating & cooling equipment
- Filters
- Humidifier
- Silencer
- Automation / Control
AHU is the main part of a HVAC system which can heat or cool the air and transfer the air through the duct flow units inside a building. It takes warm air inside and cools the air through the evaporator coil and blows the air back to the building as fresh and cold air.
- Residential buildings
- Public facilities
- Commercial facilities
- Factories
- Shopping Malls
- Medical Buildings
Fine-tune the damper settings or change the pulleys to slow the fan
The motor is overloaded. Measure the current drawn by the motor
Install grilles
Install the filters
Adjust the airflow using dampers
Electric heater not heating
Locate and repair the error
The safety breaker has tripped. Poor duct design very close to the heater causes uneven air velocity and overheating of the body.
The stepper thermostat is faulty
There is a water leak in the air handling unit
Remove any clogging debris or object from the drain pan and make sure the pipe is open
In this case, close the water inlet and outlet valves and repair on-site if possible, otherwise; remove it and have it repaired. Or inform the authorized service
Inspect the siphon, clean it if it is clogged, or install a new siphon
Tell your plumber to clear the clog in the pipe