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Why Does Air Conditioning Sometimes Smell?

During normal operation, air conditioning units tend to accumulate a wide variety of dirt, fibres, dust & pollen. If the unit is not properly and regularly maintained, this accumulation will combine with moisture in the environment, providing the perfect home for bacteria and mould. These organisms can emit nasty odours, spoiling the pleasant indoor environment the air conditioning is intended to create.

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Avoid air conditioning smells with the following tips :

• The air filters in both the indoor and outdoor units must be kept clean and clear of debris. If filters become blocked, the equipment will not only deliver reduced performance and consume more energy than necessary, it is much more likely to emit unpleasant odours. Inspect air filters regularly, particularly if the system operates in damp or dusty conditions.
• Ensure the condensate water drains and collection trays are not blocked and any condensate drain pumps and float switches are working properly. Drain lines on infrequently used systems, or those which are not flushed through frequently, can block leaving behind stagnant water.
• Clean heat exchanger coils and fins regularly. Dirt and grime may accumulate on the coils of the air conditioner which will also harbour odour-producing bacteria.
• Most important of all, have air conditioning professionally serviced on a regular basis to maintain performance, reliability and energy efficiency (generally at least twice per year). A Planned Maintenance Programme gives peace of mind and avoids the hassle of remembering to maintain and service equipment properly.

Air conditioning is technically complex, packed full of sensitive electronics, motors and control systems. A professional maintenance contactor such as Andrews Air Conditioning, will employ skilled engineers equipped with the right tools, cleaning products and techniques specifically designed for use with air conditioning equipment.

If your air conditioning needs some attention, please get in touch or take a look at our Planned Maintenance or Breakdown Repair services.

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