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Lennox Elite Model # CB30M-65-4P I had my A/C fixed while back because the freon lines keep hitting each other from the vibration which causes a leak in the line every 6 months to a year and since then my heater does not work. It will not blow heat only cold air. It was working just before repair. I bought the home 2 yrs ago. can you also suggest what I might could do to keep the freon lines from hitting each other? because4 this is the last time they will be able to repair it next time I will have to replace the unit... Thanks

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The copper the big line should have a insulating foam wrapped around it called rubetex which eliminates any rubbing. They should never be that close also. Now is this unit a heat pump?

Posted on Nov 24, 2008

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Lennox elite heat pump throws cold air


The unit should give you an error code if something is wrong.

Here's the manual:
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Con you tell me how much freon a 3 ton fidgedair spilt system holds i hit them line with the hedge trimmers. i am a lisence plumber so i can fix it just need to know how much it holds i am laided off at...


About 6 LBS what you need to do is cut the lines back and Install a coupler and braze the lines together. Then hook your guages up to the system pull a 30 inch vacuum with a vacuum pump. Then you can start charging the system with freon liquid through high side guage and gas through low side guage. Charge the unit till the big line probably 3/4 inch sweats back to the compressor till a half dollar sized ring is on the compressor where the line goes into.Let me know

Jul 27, 2011 | Air Conditioners

1 Answer

The fan is running and blowing cool air out of the unit but there is no air coming through the vents, what are the possible problems? (Lennox Elite series)


The unit could possibly have a frozen indoor coil. Turn ac to off...and fan switch to on...wait 45 minutes and see if air flow improves. Check for dirty filter which can lead to freeze up. Low on freon is also a possibility.

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Sounds like the Unit might be low on charge.But without correct readings not sure.
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Call up the company that installed it. They should be responsible for the work even though it has been 7 years. And if they don't want to replace lines then try to offer to buy the new copper if they throw in the labor. Sounds only right to me. If the person that owns the company wants to keep Lennox warranty. I think they offer 10 years on compressor. But do it as soon as you can I am sure the small copper line is wrong size also. Good luck let me know how it goes. ken

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I have a Coleman 5T 13 Seer Heat Pump. When the unit is running there is a lot of vibration (outside unit) and I hear a tinny sound (possibly like the fan hitting something). This seems to be worse...


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