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Also , I would try to convince the facility to fix the steam traps , or the new pump will die from the same thing the old one did.

Cavitation, from pumping too hot of condensate .

Up ,then over ,then down close to floor. Like a upside down u.

Do not p-trap it.

That vent is the air vent for the system, if trapped, the air cant get out.

Someone put those p traps in...

Pretty common occurence here, get a bunch of calls beginning of every heating season.

White silky substance behind the orifice.

Only happens on mobile home furnace with one orifice,

Never...

Spider web in orifice, happens all the time around here on mobile homes.

Is this steam or water , assuming steam due to tds and ph monitoring.

What does the near boiler piping look like.

Is there some large load that picks up at certain times when it trips out?...

Surprised I'm the only one with justin work boots.

Made in usa, and smooth sole so can wipe off easy.

My very first boss in this trade Would send guys home or to the store , or anywhere , but...

Very , well, creative I guess.

What's up with your truck antenna, lol

Unhook all stat wires , see what happens.

Might be pinched somewhere

Might want to double check the furnace sizing , possibly running too short of heating cycles, not allowing the flue to heat up enough to melt ice.

Have seen lots of steam wall radiators and fin tubes up high in old schools.

more than likely it was in service before the drop ceiling was installed and now is abandoned in place

Electricians pouch with belt, holds all tools for 99% of service calls and can sling over shoulder for easy carry or use belt when when working on ladders. After 20 years I finally have the tool...

Still permitted by NEC .

Circuits must be labeled as such

Some municipalities have banned the practice

Search on heating help.com , CAC/BDP 3 WIRE PILOT TROUBLESHOOTING.

It is the best theory of operation I have ever gotten

Looks good , I bend and swage everything also, saves lots $$$

We , my family, use a HSA health savings account .

You save money (nontaxable) in the special account and pay doctor directly.

Not ideal for bad injuries/large Bill's, but has worked for us.
...

I stand corrected, upon some research i see special oil.

I have only threaded a few pieces, used rigid dark oil. Seemed to work ok

Yellow jacket with the reverse kit, which had to buy seperate.

And the spin tool swageing set.

Have saved me so much money its almost unbelievable

Little late, but I just got the milwaukee fork meter. Love it

EDIT: Will thread with regular threading oil.

Use the noalox during assembly of joints , instead of pipe dope

The noalox will stop corrosion and Allow disassembly, it is almost like never seaze

Curb adapter? Those cost too much, watch this.

Been there for a while tho

I dont have the model number , but it was just the lowest end 80%. It had the ecm motor since there out of the psc models now.

I hope I never see one again, lol

Goodman gets my vote , put in an downflow 80% the other day and blew the low voltage fuse ( rookie mistake I know).

It took half an hour to disassemble everything and pry the inner door loose due...

We had a nest also low voltage on yellow , chattering contacter. Oddly it was intermittent problem.

Nee pro 1 stat all good

G1 here, not the fastest out there, but on residential systems works just fine, over 5 years old , not one problem

Common neutrals are technically allowed but must be fed from separate phases to eliminate over loading the nuetral.

Not a real good idea though, as a loose nuetral will cause high voltage on one...

Coleman's uv lights also state " ozone free"

Good info r600 , I didnt know any uv could produce ozone

Installed a 2010 year climatmaster geo in my house and circuit board failed in 3 months ( no signal being sent to blower).

This is a new unit I bought from my supply house in 2014 real cheap...

I second the load calc, i cool my 1200 sq ft house with 2tons , and it has short cycles on all but the hottest days ( 95+)

Differential , if everything is clear , I suspect partially plugged/clogged secondary

17 to be exact, the original board seemed to be adjusting the warmup time by a few seconds each time.

I thought that was normal for older trane/as which is why I didnt recognize at first.
...

Replaced circuit board and igniter under advice from my AS service rep.

Problem solved.

Seems as though igniter warmup timing had shortened somehow(bad board).

Thank u again for the help....

Thank you all for the replies,.

I did play with the igniter position with different igniters.

I have checked checked and adjusted the gas pressure.

I will check the orifices with proper bit....

Hi all, long time lurker first time posting.

Have an aux080r942v2 that has the update kit installed. New board, inducer, harness.

Replace igniter 3 years ago with a hot rod , all good until...