Question about Maytag Chassis Built-In Air Conditioner M7X05F2A

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Random "Cracking" Noise

Good morning!

I have 2 Maytag window units that we have recently begun running 24/7 since our central air went out (we are in the South so going without AC in July is not an option). Our house is a two-story "shoebox" - only 1200 sq ft. so this temporary fix has worked well enough to keep the spouse (a/k/a "the hot one") cool and yet not cause me to wear winter clothes in the house.

The unit in our bedroom has begun making a loud "cracking" noise - think the sound of hail hitting the outside portion of the unit. It's frequent enough and sporadic enough to keep this light sleeper awake and posting on this message board at 4 AM.

I have noticed that while it's cooling, it's not cooling as well as it was, say, a month or so ago.

Can you please help me? My sanity depends on it - I need to sleep!

Thank you in advance for any advice you're willing to give!

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Its refrigerant gas has leaked out so ice is forming on the evaporator which breaks and causes this cracking sound. The same is resulting in less cooling as well. Get the refrigerant gas pressure checked and fixed.

Posted on Oct 05, 2008

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Posted on Jan 02, 2017

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