Commercial air conditioning systems are huge cooling units and consuming mammoth electricity. Added to that if the cooling system is pressured with obstructed air ways and dirty filters, you can imagine.
Unlike home air conditioner, where the space needed to be cooled is less, for industrial air conditioners, it is a completely different story. By the time you figure out where the problem is, it might be too late. Hence, regular maintenance through air conditioning servicing agencies is a must.
Problems and their possible remedies:
You may encounter day today problems with your air conditioner. Here are some simple steps to assess the problem.
A/C is not turning on
Most likely the a/c fuse might have got blown up. Change the fuse. If there is still no change, then you may have to look for broken wires or loose connections in the electrical wiring. It is also possible that the switch is broken inside. Call a technician to check for these faults and replace the blown or loose or broken parts.
No cooling or very little cooling even when the temperature is actually pretty low
Check if any windows are open in the room. This might cause delay in the cooling process as hot air will keep raising the temperature. Close them if open. Next check if the belt of the compressor is loose or slipping. Over oiling might result in slipping. So tighten or replace as needed.
If the condenser filter is clogged, the cooling will not be efficient. You also need to check if any refrigerant is leaking out.
Odour can mean a lot of things. It can even mean a dead mouse in the air ducts. So cleaning the air ducts as important as cleaning and wiping the cooling unit itself for health reasons. If the condensed water doesn’t have a proper outlet, then it drips inside the cooling unit and becomes stagnant, giving odour.
Loose nuts and bolts are the main cause for noises. Tighten the bolts and nuts and see if any of the parts inside the a/c are touching each other to create such noise.
Sight glass problems
When there is refrigerant leak or when the system is undercharged, the sight glass gets clouded. This is an indication to repair leak and refill refrigerant.
Once a month: Clean the filters with mild detergent and dry before replacing.
Twice a year: Lubricate the motor and tighten the screws. Clean the water collecting tray and add bleach to it.
Once a year: Clear the air ducts for debris and dead matter, clean the evaporator fins of dust and debris, wipe and clean the coils with corrosion-free detergent.
Air conditioning repair and maintenance are an important part of owning air con. Do it regularly to avoid problems.