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upon replacement of both exchangers there was no signs of rust or sludge build up on the socondary, also no restrictions or considerable lint or debris found on the AC coil the rings from the clam...

this particular unit did not have any sludge what so ever!

upon inspection this exchanger was very clean small buildup @ the bottom where the transfer box to the secondary bolts on.

we found 6 rings busted out, plus first post explained that we switched the roll-outs and the unit kept tripping on the same spot not the switch.

it's not like i didn't test for it, that has been my diagnosis from the begining but I frustrated because could not prove or document it!

it always did in the past same analizer model, has a screen for flue and conditioned air. selection for gas type etc...

the "saga" continues, received the secondary yesterday, so we proceeded to change it today when I pulled it out I found 2 rings from the clam shell of the primary and proceeded to pull that out and...

Secondary HE will be replaced customer is debating about primary since it might not be under warranty.

plastic? you mean collector box? that was inspected and look fine at the time. why would it be dry on top if that was leaking. I have also taken the blower and looked at the secondary (before the...

I forgot what the orinal problem was :) no I didn't, but I was confused about what he was talking about, it wouldn't do much for the puddle of water, either.

jump what out?

that's what I was leaning towards but wanted to see if anybody had any thing similar that I could have of mis-interpreted. thank you!

follow up...........first of all thank you to all for your feedback it has helped me a lot. so customer called today saying he found water on the floor near the furnace and water heater, the water...

yes i have, these dont have a restrictor but the do have a gasket that tends to fall apart and to center the inducer over the opening is kinda tricky but all that looks good. i was there today so...

I don't have my notes and i forgot what the O2 was but it ran almost 45 min it started with a 92% efficiency later on dropped to the 89%, i almost thought i had it figured out because it ran so long....

I don't know what you mean by hot side of the secondary?? but I've inspected the collector box, I guess they are prown to cracking and while it was off all the pipes of the secondary looked pretty...

sorry, forgot to mention that has been done the flue readings where about 89% efficiency 122F & 6.2 CO

I thought about that but could not make any sense why it would start all of the sudden, but that will be next probably monday!

Hi guys,

new guy on here, working on a HEIL Model # H9MPD075F12A2 that is tripping the rollout swith after watching the thing run and start many times it has become evident that there is no flame...