Marco Fireplace Owners Manual

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Marco 794162 Gas Fireplace Owners ManualMarco Fireplace Manual Model Number

Marco Direct Vent Fireplace Model 794153B - 10 Years Old Lately the pilot light is not engulfing the thermopile like it used to and when I turn on the wall switch to start the fireplace it will not turn on about 40% of the time. I have thoroughly cleaned the entire head assembly of all rust and soot (thermopile, thermocouple, igniter, etc.) to no avail. I am taking an educated guess and am thinking it is because the pilot flame is weak and is not touching the thermopile. I never received an owners manual for this fireplace (came with the house)and cannot find one online. There are several screws on the 'gas valve/igniter assembly' for adjustments, but I do not know which one is used to adjust the pilot light. Any help would be appreciated.

I can post a picture of the gas valve if that helps to show which valve adjusts the pilot light. I believe the pilot adjustment screw is under the silver-colored combination head (slotted/Philips) screw at the lower right on the valve, below the ignitor. Back that screw out & there's probably a slotted screw underneath it. To accurately adjust the pilot, you'll need a multimeter set to Mv & taking the readings from the TP & the TP-TH terminals. You'll hafta turn the screw one way or the other & see which way turns the pilot up.

Generally, we try to keep the pilot at 550 - 575 Mv. That number may or may not be attainable. You'll be able to see what's happening with the TP under a steady pilot, anyway, to determine if it's on it's way out.

If the Mv hold steady it should be OK. If they're dropping, probably needs a replacement.

Thanks DAKSY for all your help - I will try this later tonight, when I can get a hold of a tester. While I was searching for a board who might help me, my wife had a furnace repair guy come in and look at the fireplace and he was messing around with the silver single slotted screw just above the word 'OFF', and made the pilot weaker. Game Pc Pake Joystick Drivers.

He swears he put it back to its original position, but I'm skeptical. He wasn't using any test equipment to test for MV when he was trying to adjust it. Do you know what he was messing with or what this screw adjusts? Thanks DAKSY for all your help - I will try this later tonight, when I can get a hold of a tester.

While I was searching for a board who might help me, my wife had a furnace repair guy come in and look at the fireplace and he was messing around with the silver single slotted screw just above the word 'OFF', and made the pilot weaker. He swears he put it back to its original position, but I'm skeptical.

Call Of Duty Black Ops 2 Zone Folder Er here. I don't think he was using any test equipment to test for MV when he was trying to adjust it. Do you know what he was messing with or what this screw adjusts?

From the original post it does not sound like you actually took the pilot apart and cleaned it out, just the surface? If its a R/S pilot I would take the supply line out of the bottom and the orifice and clean all the crud out of the there. It looks like you might have a SIT valve though, so if you have what I like to call the 'space ship' pilot, then you take the retainer clip off and pull the head off. Then you use an alan wrench to get the orifice out. Again, clean out everything in there.

If none of this works, it might just be time for a new pilot assembly. Ethernet Driver For Gigabyte Ga-78lmt-s2p here. Often times we just replace the whole thing since both the thermopile and thermocouple seems to last similar lengths of time, and the rest of it just gets full of crud.

I recently bought a house w/ a Marco gas fireplace. There is no owners manual and the company has gone out of business. I have never used a gas fireplace, so I have no experience w/ this. It has a direct vent going out through the roof, so it is not one of the Marco models which were recalled. There is a key and a valve on the wall that it fits into, but I don't know if there is a pilot that I need to light. I would really like to get a hold of an owners manual, but short of that I would like to know how to turn it on.

Can you help me? Hello, I have a similiar problem. It may sound silly, but I do not know what position the side air intake lever should be in when I operate my gas/wood fireplace. The external opening is shielded, so I don't know if the vent is open with the lever up or down. I can't feel any real difference in air flow in either posistion, but I have been told it is not a good idea to operate the fireplace with the outside air intake closed. So my basic question is-----standard lever installation with up=open or up=closed?

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