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The rotted flue was caused by a humidifier.I replaced the flue assembly with OEM equipment.What was happening was when the blower would come on,it would draw water in too fast from the...

I have to agree with the engineer being an idiot.The carried low boy oil furnaces all have the combustion vent running through the blower return area.I had a customer who's vent rotted through on a...

Just a couple stupid questions.Why is there a trap on the secondary drain that looks like its just draining into the pan?And why isn't there a trap on the drain line?Why didn't you put a spacer...

We recently install a 15 seer a/c system.The HO will get a rebate from the utility company for doing so.He will recieve additional rebates if we perform "Digital Commissioning".Does anyone know what...

Now I'm confused.How can you suck air in with a louvered vent termination?Won't the louvers get sucked closed?

Payson,I have the same camera phone.How do you download pics to here from your phone?

Where is the exhaust for the unit in the second pic?I thought the intake and exhaust had to be within so many feet or inches from each other so as not to cause problems with pressure switches.

Looks to me like someone mounted the t-stat where the doorchime should be.

Is that furnace competing for combustion air with return air?I don't think that is even legal.How does it even work?

You might also check to see how much water pressure you have in the boiler.You'll need a minimum of 18 pounds to get the water up to the second floor.There is a formula to use on how much water...

You have to count the flashes as they happen,usually a series of short flashes followed by a series of longer flashes,kinda like morse code.Then somewhere on the unit there will be a paper that tells...

I would call another service company,one that deals with lennox.I'm sure it can be replaced with something else.

Almost all controls can be replaced.Most are just 24 volt valves.If he contacts a reputable supply house,I'm sure they can cross reference something.

Can't you just get a new control?

This was a new install,indoor and outdoor.According to the lennox tech support guy,a 13 seer unit holds more refrigerant than a 10 seer indoor coil can handle.I will keep you posted when we change...

Thanks to all who replied.Turns out the Lennox salesman gave us some bad info.The unit was a mismatch.He sold us a 13 SEER condenser,but the Air Handler was only 10 Seer.Hence the indoor coil...

I installed a bi-directional filter drier.Have you seen any bad ones?

I thought system was overcharged also,removed some refrigerant,didn't do any good.System has TXV inside and outside.Subcool temp was 12 degrees in cooling mode,suction line temp was all the way up to...

I understand that it shouldn't.But the pressures shouldn't be that high anyway.I was doing a start up so people could get a CO.

Could use a little help with a HP problem.A new install installed by our company.It's a Lennox HP26 unit.Works perfect in cooling mode,but when switched to heating mode,High side pressure goes all...

If you ever install a carrier condensing unit,you must install the metering device that comes with the condensing unit.And why wouldn't you check to be sure if the evap had a metering device in it...

I was always taught that the guy who installs the condensing unit should install the metering device that comes with the condensing unit.I wouldn't blame the installers for that one.Whoever installs...

I would assume the system is 220 volts,I'm curious as to why you only have 110 at the terminals

You could try a hard start kit.

I just went to a Lennox 410A class,and the instructor said they tested stay brite#8 in the 410A systems and said it is OK to use.They found it to be as strong as braze and no contaminents were found...

If your t-stat is working without the C terminal connected,then you don't need a Common.Not all t-stats require a common.And you can use any color wire you want.The t-stat won't know the difference.

I was using the 400 sq.ft per ton as a rule of thumb only.It does work most times in our area.I believe the variable speed blower already has that humidistat option built in.Carrier claims that when...

I assumed the origianl poster was from nj...due to the fact his name was nj-ac.You may be right,if in winnepeg it could be oversized.But I think it gets hot even in winnepeg,maybe not for too...

I forgot to add a few things.I think your air handler is a variable speed unit.I think it has to be set up properly to match the outdoor unit.There should be some dip switch settings and other set up...

It could be short cycling for many reasons.Where is the thermostat installed?Is it too close to a supply duct?I don't think the TXV is the problem.Why are you installing a humidistat on an a/c system...

I think your right about being mouse heaven.I find them in a lot of the condensers that get covered for the winter.Where in Ct are you.I'm in the norwich area.

I don't know if I can find it in writing.What happened with us was a guy got fired,he went to the state labor board and they investigated it.The company had to pay back 2 years worth of 1/2 a day to...

I don't know about where you guys live,but our company just got in a world of sh-t for working the guys 9 hours and only paying them for 8 1/2.Their rationality was it was an unpaid 1/2hr. ride back...

The way we address that problem is to try not to install 90+ furnaces in attics.Makes a world of problems,have to install heat tape on the trap and get drain down as quickly as possible.When we get...

I would take the lennox package over any of the others,even if the price was higher.Lennox products are very depenable.

I would have to go with the Lennox unit.We installed exclusively Lennox products up to last year.Now we install mostly Carrier.There is no comparison as far as I'm concerned.Lennox has a much better...

We use to install Lennox only for years,now we started installing Carrier.Not as dependable as Lennox in my opinion.We had very good luck with all of Lennox's stuff,whether it be oil or gas,just had...

The furnace will run longer if left on 1st stage heat.2nd stage comes on after a certain amount of time if the t-stat isn't satisfied or if you set the t-stat for more than 2 degrees above room...

What is code 31 and 32 exactly?Isn't code 31 pressure switch failed to close or opened during operation?I thought the 58MVP series 140 had to be vented with 3 inch pipe.I could be wrong,but I had a...

Not all 2 stage furnaces need 2 stage stats.The carrier unit is one that doesn't require the 2 stage stat.There is a dip switch option on the control board.If it's set for 1 stage only,it won't hit...

We use a lot of Aprilaire humidifiers and seem to have pretty good luck with them.We've use Skuttle too,they are also pretty good.