Our A/C (coleman-mach) has a strange smell, kind of sweet, almost like some type of aerosol spray lube. I can't quite put my finger on it but my wife thought it smelled like freon. I can't recall the smell of freon so I don't know but it is cooling just fine. I've run it for days hoping the smell would dissipate but it hasn't. Suggestions?

A fridge going bad will emit an ammonia smell. If its just starting to go you may not get the whole strong in your face wiff of it. And that is what you are smelling. That's what happened to me it wasn't the whole ammonia smell in your face and I thought it smelled like an aerosol too. Sadly the fridge might be on its way out.

rockhillmanor wrote:A fridge going bad will emit an ammonia smell. If its just starting to go you may not get the whole strong in your face wiff of it. And that is what you are smelling. That's what happened to me it wasn't the whole ammonia smell in your face and I thought it smelled like an aerosol too. Sadly the fridge might be on its way out.hmm, i know ammonia and this didn't remind me of that at all... not as pungent, no watery eyes or difficulty breathing. And by fridge you mean A/C, right? The thing can't be more than a year old, hope it's not going out already.

When an AC ices up it sometimes will have an unusual smell. Just my experience.

Many Freon lubricants emit a sweet odor. If your A/C is cooling properly it cannot be that. Check for oil seepage at a return line connections.

If you had a Freon/410 leak bad enough for you to smell it inside, it would then NOT cool. You state it has cooled correctly for a few days. They only hold 1 lb. of coolant, and if a leak bad enough to smell inside, it would not have enough coolant to continue cooling. Something else is causing that smell. Check the upper unit condenser and evap for foreign debris. Doug

Strange sweet smell coming from air conditioner

14 Replies

MEXICOWANDERER
Explorer
Jul 06, 2016
Many Freon lubricants emit a sweet odor. If your A/C is cooling properly it cannot be that. Check for oil seepage at a return line connections.
fla-gypsy
Explorer
Jul 06, 2016
When an AC ices up it sometimes will have an unusual smell. Just my experience.
COboondocker
Explorer
Jul 06, 2016
rockhillmanor wrote:
A fridge going bad will emit an ammonia smell. If its just starting to go you may not get the whole strong in your face wiff of it. And that is what you are smelling.

That's what happened to me it wasn't the whole ammonia smell in your face and I thought it smelled like an aerosol too. Sadly the fridge might be on its way out.

hmm, i know ammonia and this didn't remind me of that at all... not as pungent, no watery eyes or difficulty breathing. And by fridge you mean A/C, right? The thing can't be more than a year old, hope it's not going out already.
rockhillmanor
Explorer II
Jul 06, 2016
A fridge going bad will emit an ammonia smell. If its just starting to go you may not get the whole strong in your face wiff of it. And that is what you are smelling.

That's what happened to me it wasn't the whole ammonia smell in your face and I thought it smelled like an aerosol too. Sadly the fridge might be on its way out.

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Strange sweet smell coming from air conditioner

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