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Press the current limit setpoint button and make sure that someone didn't accidently change the unit RLA when they were trying to change the current limit setpoit. Make sure both chillers are set the...

Can't really go into the details at this time.

I've got one piece of advice for you. Under no circumstance sign their restrictive covenent, it's not worth the hastle.

I had the same problem once and it came down to a wire being landed in the wrong place on the terminal strip. Follow the wires from the module down to the strip below and verify everything is...

Thanks for the info but I have a D design series chiller which has a XHS120BF46L00330 compressor, does anyone have anything on this compressor? My slide valve is stuck at around 80%.

My e-mail is too long to fit in profile so try this,
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Hate to sound like a broken record but could someone send a copy to me, found one stuck today.

I interviewed there once and was made an offer which I didn't take because I couldn't get my wife talked in to the move. About five years later I checked back with them and they made me the same...

DavyB has it right. You young guys just try to get your foot in the door as a shop guy and if your lucky maybe you can get some schooling payed for by the owner,I'm not so sure I believe that being...

If you would like a good alternative to McDonald Miller or Johnson take a look at a Harwil Q5. We used them on larger chillers, designed for more flow than the other manufactures can handle.

You didn't say how old your machine is. Is it the lower sump that has the external impeller for motor cooling because I have had one of those locked up due to a contaminated system.You will be lucky...

Check you discarge volute for the groove that the o ring would mate up to. If there is not a groove then it can't take an o ring.

If you have a part winding start and one compressor is already running. When the other compressor comes on the vibration of the contactors can trip the relay. Every unit we have out there we have the...

You probably have a bad Guard Pak. Try jumping it out(M1-M2). Make sure you have gauges on it to prove you have oil pressure.

The leaks we find are right at the stem of the butterfly valve were the handle goes on. No need to remove any insulation usually to find it but you have to have a good leak detector. The usually leak...

We find leaks there all the time. Look for the slight oil trace. What you think is a small leak is usually larger. Had one that I could barely pick up, ordered a new valve when I got back to change...

I know all shops tend to have their own way of doing things but I have done probably 50 overhauls in the last 20 years with about 10 of them having a new motor. I have never had a machine balanced...

I had this problem a year or so ago. The transition contactor was actually hanging up and staying in too long. This may be your problem especially if your resistors look like they have been...

I had a little trouble with your original disciption of the problem but I assume you are tripping out on reset relay which could be other things than motor temp. We have a problem all the time with...

Sorry you were partially right. I was thinking of exhaust fan failure.

No I"m not , have worked on the same problem lately and that was the problem on both units. They had just been started up a few weeks before and was having random diagnostics.

Your drive is not making the pressure switch quick enough probably. Try increasing minimum speed to 30 HZ and changing your ramp up time to 10 or 15 seconds. I have had to go as high as 33 HZ before

The first place to look for a leak on a chiller with an Earthwise Purge is the float in the bottom of the tank. Leaks can be found while the machine is running, or you can isolate the purge and...

I had 4 chillers setting side by side that starting acting up a year after startup. Came down to construction dust inside of the solid state starter module. Blew them all out and never had the...

A little trick I started doing several years ago on some of these units that may have problems is to go in the P4 menu and change the % of condensor pressure setpoint down to 82 from 90. This slows...