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I've had this SMAN3 several years but rarely used (original batteries and not a scratch ). First the pressure on the high side would not zero. Next the vacuum on the low side would only read err....

There may be a screen in the line right before the piston (break connection and look in the line coming from condensing unit). I had one stop up and got the same readings. I took the screen out and...

Could it be the elements are somehow trying to run on 120v instead of 240?

If the LP gas has been run through a copper line check for kinks or other restrictions.

Thanks. I've never done any business in TXK {Was Clueless}...

Anyone know a good supply house over that way? Gotta go next week....

Anyone use a RG3000 PROMAX Cube Refrigerant Recovery Machine? Opinions?

Check compressor? It never lies. RSC to ground (better than a megger) or to figure out which is which, you just can't beat a Simpson....

Check compressor? It never lies. RSC to ground (better than a megger) or to figure out which is which, you just can't beat it.......

Here is a magnet trick http://www.youtube.com/watch?v=tsJLuTrezwo

Have you got a picture of the dog? I got to get me one of them......

Very sorry to hear it, he sounds like a really good man. I still grieve over one I lost in 1974. I will pray for your family.........

Welcome to the site. Grab some thick skin and jump right on in. Just post your questions and try to ignore the jerks. This is a really good source of information.

Yep. That is right off the wiring diagram.

There are still a bunch of these still floating around. If you are still kinda new at this they read a little funny on the VOM.

I had one do something similar after a thunderstorm. It screwed up the circus (yes I said circus) board.

Try going to the Adobe site and getting updates for Reader, Flash Player ect....

I had a test equipment problem. Fieldpiece (Thanks, James) and their authorized dealer in Benton, Arkansas( Thanks, Chris) made it good the same day. Who is going to beat that.

I like Glen Beck - and Rush and O'Reilly and Hannity.............

I just got off the phone with Ritchie Engineering Company, Inc.(Yellow Jacket). R22/410A cross contamination is extremely unlikely through manifold gauge and hoses. Purge with the refrigerant you are...

If you have an old analog amprobe lying around you can get a good read on the compressor start up. See if all that "sound" is excessive current.

You really should be in sales...

Welcome. I recently found this site as well. You get to experience going out on a job and all the associated problems it would take years to run across in the field. No matter how long you have done...

I ran across a situation today where “the kids” discovered that little wheel – toe zone heating/cooling – and closed every floor register in the house.

Sorry Gunslinger. I re-posted the water mist thing. I missed it when I read through the first time.

I ran across one once where the defrost board got confused. Bugs walking around on a poorly coated circuit portion. Did I mention I hate bugs?

I have the sman3 and love it. It is like a GPS for troubleshooting. I guess you can get a good or bad anything these days. I still have a set of old Imperial gauges from 1986 that work like new....

This may sound a bit unorthodox but have you tried a light water mist on the condenser to see if if that helps bring your readings more in-line. May help eliminate what it's not and help find what it...

How long is the line set? What size lines?

A good megger test can give you a heads up about a potential future problem. A good multi-meter is great for checking motor windings, bad connections, caps ect... I have seen a compressor fail a...

crankcase heater working?

A small limit switch like a lid switch on a washing machine on the disconnect door to the line side> then through the flex> to an alarm (Radio Shack) in the condenser? I made something similar for a...

Is it the vacuum/pressure/valves or display? You can clean the vac sensor with alcohol.(isopropyl-not the other stuff)

I've read about them and decided the new features would not be that useful to me personally. A lot of folks may really like them.

Change it out. You won't wake up at 2:00 am thinking I should have changed that disconnect........

Check for oil overfill (look at sight glass while pump is running also) and close the pump valve before shutting down pump

Thanks. I really like this site.

Welcome from Hot Springs, Arkansas. I am new too. There is a lot of good information here and as I'm sure you've noticed, a few real jerks as well. For the most part it is a well maintained,...

My vacuum readings were erratic while connected directly to the pump with gauge hi/lo capped off. I was testing the pump because a cheap drive coupling in a very expensive pump exploded.

As the greatest philosopher of our time would say "Now that's funny, I don't care who you are, that there is funny."

Does your vacuum pump have a gas ballast port? This is from Yellow Jacket U If you suspect an open or wet system, be sure to use the gas ballast feature on your vacuum pump. The gas ballast prevents...

I could never blame my pump. We are very close. I raised him up from when he was just a young seal a meal.

It whispered you have a bad o ring on your vacuum pump oil drain plug. No wonder the readings were goofy.

PS Did I mention I hate dirt daubers?

PS Did I mention I hate dirt daubers?

As a last resort you can 360 loop the condensate line below the pan.

Not at all silly. With a 2 foot section of line missing for who knows how long? Could be.

Sounds like that is all you are going to get out of that pump for what ever reason. I think you are on the right track by trying a different one. I contacted Fieldpiece 8/1/12 about the vacuum...

Until someone plugged it in

Confusion Say, It take 1000 what it aint to find 1 what it is......