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Ohm meter from housing to heat strips shows no continuity, and only one side of the 230 v line is hooked up and will feed 115v through to one side but should not heat up the strip.

Ohm meter from housing to heat strips shows no continuity, and only one side of the 230 v line is hooked up and will feed 115v through to one side but should not heat up the strip.

Have a 230 volt set of strips that heat up with only one hot leg hooked up, never had this happen before in an older unit. Maybe some one here has had this problem the other set of strips work fine,...

Been running for 7 yrs now, had to remove suction driers and noticed the high head pressure, had two driers in a row. After removal 68 wet bulb,90 O.D.T, calls for 16 degree S. H. 73 psig and a...

To get correct superheat, Head psig will run around 325 at 90 Outside Air temp. Piston type coil exsisting system as stated 2 1/2 ton cond on a 2 ton evap.

Have a 2 1/2 ton condenser on a 2 ton evap coil and only a 1/4 in liquid line and a 5/8 suction line running 30 ft. vertically. What happens to the psig on hi and low side?

I worked on Arkla Servels for 10 yrs. They are not very efficient and maint on them can be costly, cleaning tanks twice a year,and cleaning of the generator. Belt replacements, timers,etc. Same with...

What would be the effect on PSIG in a 410 unit with liquid lines of 3/16, 1/4 & 5/16? Also Suction lines range from 5/8 to 3/4. Units are only 2 Tons & 1.5 Tons. 50 to 80 Ft. run's? Owner's will...

Thanks men I wasn't really sure since I never knew any one who had ever done it before and left it, I have been in a rush and did one once but I also turned it back around. So thanks for the info, I...

In all my 30 years I have never seen a drier installed backwards, so I have no idea what effect it would have on a r-22 a/c system. Has any one checked a unit out under these conditions? On the liq...

Remove the Lets not give out too much DIY advise. While the OP says he is in the trade, this being the open forum, the info you post is open for all to see.

Thanks for the info on this, I did plan on replacing all evap coils just was not sure about the line set's.

I am a 30 yr tech in the A/C field but due to mobility problems ive been out of the loop for about 5 yrs now. Now i take care of a 296 apartment complex with electric carrier 1.5 ton to 2 ton...

I'm sure you are right about this, but now they wont have to search around for unit's just walk into any supply house and pick out your own non filled unit. We all have enough problems as it is, i...

Is there not a law that without epa certificate you are not allowed to buy or transport any container with refrigerant in it? That's why mine is on file at all my distributors, and we wont hire any...

Will this substitute R-22 be another hit and miss product like those can's of leak seal?
I have checked on the new non filled R-22 systems and yet the cost of those units are still the same, they...

Never had much luck with any universal motor's or multy horse power motor's either, but that being said most all the other post were right. Get a good tech to install the right motor and from there...

Run the low voltage inside 1/2 in. Pvc pipe, its cheap and a lot easier, use schedule 40 the thicker type. All you will need is some elbows, male to slip fitting etc.

I worked in Houston for 30 yrs in A/C service, try Premier heating and air. They will do a load calculation etc and if anything goes wrong they will fix it right away. I now live in Missouri so I no...

I'm sorry but as I was always told, your not paying for what I do as much as for what I know period. Im sure your boss pays you for the same reason. And for future notice since gas is going out of...

I have not read all the threads here but are these company's talking R-22 or R410-A ? That would really put a damper on the line set Problem. In Houston Tx. Carrier would not warranty a unit of...

We installed 100 's of these in two story homes and even three, on one unit.
Your Installer will need to be good at cfm,heat load, etc, your bypass damper will have to be sized to be able to carry...

Have the Tech check the vent tube and the vent chamber for any rust blockage or bits of broken rust particles also have him check the flue vent for any small obstruction. Those issues do cause...

I lived in Houston from 1980 to 2005 and I also worked as an A/C Tech for those years, heat pumps are not usually used since for the most part you may only get a month of cold weather and not in a...

Its hard to say what might be the problem since you have had several Techs out already. Did they check the capacitor under a load? A unit could still come on in certain conditions like early mornings...

I worked in Houaton for 26 yrs, and have tried to repaire aluminum with kits etc, so has other techs and to no avail or would only hold a little while. Its under warranty and you should have it...

I use to work in Houston TX, and worked on almost nothing but R-410A systems since that’s about all we were using. I’ve found them overcharged and pressures not really showing much of a change, they...

You have a 3 spd motor you might want to try a dehumidifier with a relay that ties with the motor and thermostat, should work better than the room type, Lennox use to make a really good one some...

Like they all have said,dont get married to future roof leaks call a roofing company, then they can go to bed with the Bldg owners. Years ago we use to do it but after a few mis haps we gave it...

Worked for a Shell petroleum plant and all the units we installed were treated against corosion, dont buy a fancy type unit though just simple controls. Set alot of lennox 2 spds down on the gulf...

That under 15 & over 20 degrees is just your delta-t across the evap coil and is only a guide line to look for a certain problem but not by its self, you need to check subcooling and or superheat...

Yes the other day I did succeed in brazing brass to copper but on a work bench not hooked up to a coil, then I tried the same meathod at a coil in a closet with no luck but I'll try once again. Less...

Sorry but I tried once again to solder copper to a brass compression fitting while it was still connected to the coil, I cleaned it the best I could and used alot of paste, no luck there I only wish...

have worked with alot of zoned systems when i was in houston Tx, and (gerizam60) is correct as is the other post, and ajustments could be needed to a closer tolerance. A manual damper would work if...

are those rods your talking about real high in cost? and I didnt recall seeing them here at our Johnstone supply house in O fallon Missouri.I will check on them though and again thanks for the Info.

Thats all Im saying guys is that (I) think this could be a very good possibility like your coil diagnos, sorry if I jumped the gun but Im sure she thought it seemed like 5 min, to me it seemed longer...

Seen and heard this many times once while standing over one, I think your compressor is shot. Terminals In your compressor gave up and it will be alittle costly since the lines are sure to be...

I hav'nt tried the 95/5 is it less costly since the silver with flux worked so well, and yes you are right clean,clean,clean! It was really easier than brazing I could'nt believe the results,so thank...

I posted this the other day, sorry but I got back into the wrong form i think. 45% silver with white paste flux, but I had to use the brazing tanks the propane tank just was'nt enough. Ive never done...

I want to think all of you that posted how to solder these two alloys and it worked just great, you can always teach a tech somting new if he loves his kind of work. Even after 32 years I still have...

You said he fixed the blower or did he replace the blower? but since you said he left knowing it wasn't fixed then he is not what we here would call a good tech. I might not have the parts but I...

Should be a code #in your booklet and if not call out a Tech to look it up for you and properly set that stat up into auto change over.

I lived in Houston for 26 years and the last 10 years i was tired of not having a cool home in mid summer, i had a 2.5 ton and went to a 4 ton with a lennox dehumidefier. Delta-T was set at 19...

actully Im trying to braze copper to brass, those carrier aluminum evap coils with copression fittings that always seem to leak over time. I tried once on an old coil but with no success just melting...

My E.P.A. card # is my social # and is that safe over the net? I have 32 years in this area starting out as a goffer to lead tech on up to service in 85.I also held Texas contractors license up till...

Thanks for the info hvaclover I have never tried that but Im going to give it a test drive on a seperate peice before i commit myself to ruining the actual part just to get use to its flow and heat...

All we can say is that it is important, I have a new system myself that I installed and I check it every year since I am a tech. There are many things to look at and what to look for, more so in the...

Thanks for the Info, I have tried both methods but I do think now looking back that I had too hot a flame and I heated the copper too much and just burning holes in the copper. If it wasnt on an...

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I have been an A/C teck for over 30 years now but I have always had trouble brazing these tow metals properly. Mostly carrier...

I have been an A/C teck for over 30 years now but I have always had trouble brazing these tow metals properly. Mostly carrier evaporator coils with worn out compression fittings, i want to back off...