Flooding freezer-Need Hepl!

[ttriffic02]

Given the prameters of the post, frozen starved coil freezer not working
mechanic has cranked the valve trying to do whatever he thought was correct yet the unit shown in the picture still is starved It is correct to change out the valve.
I also believe if a costomer calls you for a freezer call (not working) and you surmize like the mechanic in the post the txv is causing the problem and again given the picture of the coil in question adjustment is not the answer.
A new valve is.

I'd like to know if ice is forming on the inside if the valve stem cap pushing down on the stem, I have had this problem with one manifacturer of txv
it gets ice on the inside of the cap and pushes on the adjustment stem acting like a partial restriction with a goodly pressure drop across the coil and a small freon leak at the stem itself. After the first occurance the stem leaks and again pressure builds under the cap causing the valve to close artifically.
Oh I still belive if a txv nees adjustment (the cause of the service call) it will be replaced
This has worked for me for 23 years now, I see no cause for worry
Plus it will fix the problem (remember we are talking about a tweek of a valve causing the call) Sell the valve get the service call and the customer will be happy in the end as you fixed the problem and fixed it in his mind by changing a defective part. Opposed to making several adjustments eating a ****load of your time collecting only for labor and the customer wondering if you really did fix it or did you just futz around with it to get it going again.
That is just the way I see it and it has worked well for me adn for just selling parts that is not what we are talking about here it is the TXV adjust or not as to the picture in the post and common sense of business. just my two cents worth

[nwrscold]

ttriffic02,
Still curious on how you test a valve plate by feeling the head as you explained in a previous post (#4 of your checklist)?

[crackertech]

ttriffic02,
Still curious on how you test a valve plate by feeling the head as you explained in a previous post (#4 of your checklist)?

check the heads on the compressor by touching them, if one is cooler or cold a valve plate is leaking by or broken all together. So many things so few words.

Could you please school me on this method of testing a valve plate?In my 20
+ year's I have never herd of that. So nwrscold we think alike.I would also
like to hear the awnser to that one.

[Jangles]

To give an update TXVs were changed out on 2 of the 3 coils in question there is a third unit to be done. Suction pressure at -20f and 10f superheat. These are working beautiful!!

[Slatts]

To give an update TXVs were changed out on 2 of the 3 coils in question there is a third unit to be done. Suction pressure at -20f and 10f superheat. These are working beautiful!!

I do love a happy ending

[the mojo]

To give an update TXVs were changed out on 2 of the 3 coils in question there is a third unit to be done. Suction pressure at -20f and 10f superheat. These are working beautiful!!

Good for you. As for the third one which through a rod. You got a handle on that?

[Jangles]

Good for you. As for the third one which through a rod. You got a handle on that?

Well, there is some politics involved there. These units are 2 months off of warranty. They were installed and commissioned by my company but another company had originally got the job but were too busy to do it. They gave us the equipment and told us to do it. Big Wigs are sorting it all out.