Were I in KC, I would absolutely call him, Mr. Inspector. Unfortunately, I am in Nashville - Land Of Multi-Millionaire Heat Pump Technicians.

FAX

Depending on the make and year it was made it is either a 5 or a 10 year warranty. If you have warranty check to see if it came with a labor allowance. That way not only the parts covered but they will also pay a certain amount of the labor. All that being said you will have to find someone that will do warranty work on a system that they might not have sold and installed. Some will but a lot won't.

Without being there to actually hear it or investigate, it could be a number of things causing the noise.

It's possible it's the compressor, but hopefully not. That would be the most expensive item to replace. Unless it's still under warranty, it would probably cost you over $1,000 to replace.

Outdoor fan motor could have bad bearings (it doesn't have a belt). While it could be a little expensive, not nearly as bad a compressor. (maybe a couple hundred to replace)

Outdoor fan blade could be hitting something. Unless the blade is damaged, this is a quick and cheap fix.

While also possible but not as likely..

Compressor or fan contactor could be making noise. Sometimes they will make a "chattering" noise that can be very loud.

Reversing valve can be noisy, but very unlikely it would be that bad.

You guys are awesome in every respect. Many, many thanks for your help. I hope each and every one of you are seduced by a young, nubile blond with straight teeth before the sun goes down today.

Mike The Heat Pump Guy was just here. The diagnosis has been completed and the results are as follows; The compressor is fine. The fan is fine. Likely cause of the incredibly loud, irritating noise that awakened my neighbors: ice buildup on the unit. Total charge for the house call: $0.00.

God is great.

FAX THE RELIEVED

How dd you get a FREE service call?

I'm not completely sure, Mr. Skip Towne. We have worked with Mike The Awesome Heat Pump Stud for many years. He installed this unit, does the maintenance, etc. Maybe he likes us?

Anyway, as he was leaving I said, "You'll send us a bill for the visit, right?" and he said, "No. I'm not worried about it. Just keep an eye on it and let me know if I need to come back." and that was it. Surprised me, too.

FAX

You're luckier than a dog with three dicks.

That's the value of clean living, Mr. FAX.

I'm not so sure about that, Mr. Skip Towne.

Anyhow, everybody thinks that three-dicked dogs are some kind of uber-lucky until pecker gnat season arrives. Then they change their tune.

FAX

I don't know a lot about that....but damn that sounds real lucky.

FYP

this.

and what kind Heat Pump. my 10 yo Lennox great unit. just did furnace blower (squirrel cage) moter. (2nd one).

if i had a dog w/3 dicks, i'd shoot the poor bastard in the head. it's gonna drive itself nuts before it's full grown.
sec

Just a question, since I am not familiar with heat pumps but is the compressor part of the ac system and not the heating?

Now you can be like a women, i saved 1000 of dollars today.

Now go out and blow it on yourself.

BTW, my nieghbor is an elderly lady, she is a blond with straight teeth she can take in and out. Does that still count Fax?