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What's the model number? And how does the unit stage up the compressors?

Did you check the heater in the Lee Temp receiver? The liquid line leaving the receiver should not be ambient tempature.

You get what you pay for. Buy cheap stuff and it wont last very long, buy Lieberts and if they are installed properly as Jerry said they will last forever with proper maintenance. One of my data...

I also know some factory techs, one I speak to quite often (about fishing of course), he has had more problems with the 410a systems. I agree that a replacement for r12 has never been found, 134a is...

What he said is true, had this happen to me before, got another new motor and magically it ran the right direction.

Really? If the system is installed and started as per Liebert specs. this does not happen. I have 2 challenger, 1 DS, and a XDC system, all running 407c. The oldest system is 3 years and the newest...

What are the refrigerant pressures doing when the amps climbed? When these compressors were installed was the system properly flushed and cleaned? The milky color in the oil could be moisture, there...

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Not sure if this worked, but if you need more email me and ill send you what I have.

Higher voltage = lower amps. I agree with jayguy check the pulley if it is adjustable open it up and you should see your amps drop. If it is a fixed pulley, call the factory and see what pitch pulley...

More info needed, model#, brand name, delta T, ect. no way to know what path to send you down. :gah:

I beg to differ, this is a good time to be new to the trade. Right now I work 40+ hours a week in this slow economy. I was lucky to work with top notch Journeymen as an apprentice in school and they...

Pull the jugs of referigerant off of their trucks. Untill you can show them the proper way to charge a new system. :cheers:

Manual HPS are installed for a reason, If you trip it you need to look at it and see why it tripped. I dont know how many compressors I have replaced because it went into high head then auto reset...

My favorite was the remake of " All Quiet on the Western Front". He played a german Sargent nicknamed Kat. The main character was played by Jon-boy ( Richard Thomas?) from the Walton's. I would love...

I saw an old challenger series unit with a TXV fed by two liquid lines. One of the lines had a solenoid in it. This is for capacity control, if you are going to charge the unit you must have it...

Taking a long shot here but, what type of oil is in the system? Because POE oil is a detergent and it may be discoloring your paint. I'm not a chiller guy so this is a wild guess on my part. :whistle:

My memory is failing me, but the board in the unit and the iCOM controller each have their own addresses. It sounds like the iCOM can see the other unit in the network but it can't see the unit it is...

I am truly sorry for your loss.

[QUOTE=qwerty hvac;13446611]Go to carrier and buy two more.



Winner!!! :grin2:

Those older boards have a 3 or 5 volt battery sodered onto the board. That keeps the eprom powered at all times. If that battery dies and power to the unit is shut off it kills the board. There is no...

Have you sent off an oil sample and had it tested? That's what I would do.

Very true, we put Trane controls on a Carrier chiller, best it's ever worked. :cheers:

You are correct, if I remember correctly there are 3 different pressure ranges that they operate in. For example the ones I use are 185-245 psi range. So at 185 psi the motor is at 3% then at 245 psi...

How are you getting the fan to run if it won't run in test mode? Sounds like the airflow switch is not making. Check the fan rotation to make sure its turning the right way. If it is see if your...

This might help you as well.