{"id":1501,"date":"2026-04-02T10:14:00","date_gmt":"2026-04-02T10:14:00","guid":{"rendered":"https:\/\/www.100percentplumbing.com\/?p=1501"},"modified":"2026-04-02T10:14:00","modified_gmt":"2026-04-02T10:14:00","slug":"why-does-my-air-conditioner-smell-bad-in-calpe","status":"publish","type":"post","link":"https:\/\/www.100percentplumbing.com\/fr\/why-does-my-air-conditioner-smell-bad-in-calpe\/","title":{"rendered":"Why does my air conditioner smell bad in Calpe?"},"content":{"rendered":"

If your air conditioner smells bad in Calpe, the most common causes are moisture buildup inside the unit, dirty filters, blocked drainage, mould or bacteria in internal components, or poor maintenance. 100% Plumbing lists climatisation<\/strong> among its core services, including maintenance & repair<\/strong>, and specifically says it covers Calpe<\/strong> as part of Costa Blanca North.<\/p>\n

A bad smell from an AC unit should not be ignored. In many cases, the smell starts because moisture remains inside the system and allows dirt, bacteria or mould to build up. If the problem is left unresolved, the odour often returns and the unit may also start performing less efficiently.<\/p>\n

What usually causes a bad smell from an air conditioner?<\/h2>\n

One of the most common causes is a dirty air filter<\/strong>. When filters collect dust and organic matter, the smell can circulate every time the system runs. Another frequent cause is moisture inside the unit<\/strong>, especially around coils, trays or drainage components, where bacteria or mould can develop.<\/p>\n

A bad smell can also be linked to a blocked condensate drain<\/strong>, because trapped moisture creates the right conditions for odours to build up. If the issue is affecting nearby surfaces or there are signs of water-related damage, related services such as plomberie g\u00e9n\u00e9rale<\/a><\/strong> or broader services de plomberie<\/a><\/strong> may also become relevant alongside the AC repair. 100% Plumbing presents both plumbing and air conditioning as part of its Costa Blanca service offering.<\/p>\n

What can you check first?<\/h2>\n

Before calling a professional, there are a few basic things you can check safely. Start by noticing when<\/strong> the smell appears. If it happens as soon as the AC starts, the cause may be inside the indoor unit, filter, or drain area. If the smell gets worse after the unit has been off for some time, stagnant moisture may be part of the problem.<\/p>\n

You can also check whether the filter looks dirty and whether the unit has shown any other warning signs such as reduced airflow, water leakage, or weaker cooling performance. If the smell is strong, persistent, or comes back quickly after basic cleaning, the issue usually needs proper maintenance or repair.<\/p>\n

When should you call a professional in Calpe?<\/h2>\n

You should call a professional if:<\/p>\n