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Slather some mastic on it and call it good.


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There is a barometric damper just for natural draft heating systems. Skuttle makes it. A hole has to be made to the outdoors and a 4 or 6 inch duct has to run to the unit.


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Maybe the solution is to enlarge the tube so it can drain.

This is the Airflow switch that allows the board to recognize the vfd blower is running. The switch is higher that the inlet of the tube.

I have 2 Daikin rtu units made by Rheem. Tech support is being extremely difficult to get the necessary info to solve an issue. An airflow pressure switch is getting moisture in the tube. The unit...

When I am back next year I will be changing the heat exchangers on one of the units. I will be testing the operation of incoming gas and manifold pressure. The valve and blower do not come with the...

There is a 30 ton, a 40 ton, and 50 ton unit. Based on the conditions I have been dealing with I never know what could have been done.

I am just noticing pressure is not near where it should be on the unit. There are 2 power burners on these units. I started doing maintenence after a different company. I am concerned someone was...

I have a negative pressure valve needing adjustment but the cap on the adjustment has two little holes. Not the typical flat head. Any idea if there is a tool for this or am I supposed wrench it...

Has anyone else had any problems with kolddraft ice machines?

There is a wand they sell for coil cleaning that gives some volume of water and good pressure. it also helps with tight spots. I've used it in residental some. It could be worth a try.

Many commercial units have dc controls and your A.A. will help to understand how it works. Lennox has new ac to dc converters on the boards in the new G71 models that provide power for the...

Have you guys got a 5 year plan?

I ran into spiral duct condensating once but found it was because someone riped off the sensor in the department store. Put a new sensor on and good as new. The tstat was in a hot server room so when...

I ran into spiral duct condensating once but the found it was because someone riped off the sensor in the department store. The tstat was in a hot server room so when it took over the unit ran and...

this site is not for pricing i thought?

Yes, a system is as good as its installation and service. I have just a bad run in the past few months. the problems i encounter are created by the installation.

I think you lose all of the eff. of the unit when a 1/4 liquid line is used. the design and engineering of the system relies on a 3/8in line. you are creating a metering device with a 1/4 inch...

the comment was my personal choice. Yes the warrenty is good to have as long as you have the equipment serviced annually. Goodman, trane, carrier, what ever the unit, is only as good as the...

Some customers have to learn the hard way but even then the still want service cheap. I'm sure you'll get a call to fix the air flow problem that 5 ton will cause.

Trane is easier to maintain and service plus their techical help is so much better than goodman. I do like finding all of the defective goodman heat exchangers and circuit boards. If I had to...

Found and replaced cracked heat exchanger in a two year old ICP roof top unit. I am wondering if anyone else has seen this in other units 10ton and up. I believe the bracket that holds the back...

I ran into a problem with duct work getting wet in the summer due to lack of air flow. the issue there was insulation colasping onto both sides of the blower. I wonder what the blower is doing on...

The manufacturer is working a conversion for 115v but the current evergreen is for 208-230 applications (air handlers)

Is the filter clean? LOL

I've heard you have to be careful of the gasket. It can get torn up. Have you contacted honeywell to see if they can offer support.

How is the remote kit hose draining at its trap? I've also heard that the gasket can get torn up if your not careful. Have you contacted honeywell for support? They had some problems with the...

What tonage provided the 19 seer rating?

Has anyone used the new Evergreen IM motors? Are they any good? YOU can't use them in fossil fuel applications.

I had just left a service call and was driving down the street when I noticed something in the snow. It was a man. He was on all fours and trying to crawl. When I got to him he could barely stand....

I had a downflow furnance that repeatedly went out on high limit. High static pressure (0.40) across the dynamic filter lead me to believe that was a culprit. Removing the filter resulted in...