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I have a monessen vent-free DIS33N fireplace. The pilot flame bends upwards and will not light with the piezo ignitor. Once lit with a match the unit stays on and operates. How do I adjust, correct, or clean the pilot?
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press pilot light ---light with match or lighter -hold pilot then turn to setting------pg 31 showes how https://downloads.hearthnhome.com/installmanuals/20307670%20VFI33%20Solstice.pdf
On some gas-powered appliances -- such as gas ranges, water heaters, boilers and gas fireplaces -- the pilot light works to ignite the main flame when the gas is switched on to the burner by the regulating valve. If the pilot light is not lit, the gas burner will not ignite, which could cause a dangerous situation by letting highly flammable gas escape into the air. If the pilot light goes out, you can relight it after the gas is shut off using a match or the unit's electronic ignitor if it has one, following the proper safety precautions
Is the flame [when lit] in contact with the thermocouple? Does the flame hit the thermal couple and climb it? How long do you attempt to heat it up before allowing it to run on its own?
If the flame is correct placement, color, and contact with the thermocouple and you've attempted to light it and had it running manually for 30 secs or more ... you may need a new thermocouple and/or pilot assembly. If unsure, have a certified technician come out and examine it for you.
Contact the Monessen site below and they might be able to help you or get you in touch with a dealer in your area to fix the issue. I know there was a recall on the Monessen remote systems a while back and your system might be part of that recall. Get with Monessen directly to find out. Hope this helps. http://monessenhearth.com/customer-care/
One, ensure that the flame is entirely one color blue, no light blue in the center, no orange or yellow. If you replaced the thermocouple yourself, ensure you connected it to the gas valve and/or ensure that the connection to the gas valve is tight. If it is a new thermocouple you may have a gas valve issue, this is uncommon and rare. However, the valve may not be receiving the signal from the thermocouple. If the color of the flame is incorrect, turn fireplace off, and clean out the pilot tube and then relight. If none of this works, call your local trained professional. Remember you are dealing with gas, being cheap can put you in danger.
It is all automatic, when you press start the power is sent to the gas assembly (if the timer is set for heat). The power originates from the cord to the timer to the temp control (on the blower housing) to the fuse next to the control, and to the gas assembly. The solenoids ignitor and flame sensor are all energized at once. The solenoids cannot release the gas unless the ignitor drops out of the circuit. That is the job of the flame sensor. Once the sensors bi-metal bends and opens the circuit, no more power goes to the ignitor< hoever, once the ignitor is glowing it generats a signal and becomes a thermogenerator with holds open the solenoid (holding coil) If for some reason the gas did not ignite the glow coil will cool off and shut down the solenoid. So what can go wrong? Lint buildup in the blower housing cause the fuse to melt. No power can be sent to the gas assembly. The flame sensor is open and not allowing power to the ignitor, the ignitor is open and not glowing. Old timey dryers had a pilot light. You hold down on the red lever and light the flame. Then release the lever and the pilot stays lit. I doubt if yours has a standing pilot. How modern gas dryer work:
Make sure thermocouple tip is seated inside the burner flame. Make sure thermocouple is not overtightened. Finger-tight + 1/4 turn. If the pilot lights, then ECO energy cut off is not tripped, but gas control valve might be bad. Check color of pilot flame: it should be strong and clear blue. If pilot flame is weak, or color of flame is yellow-orange: Clean pilot orifice and burner and combustion parts on yearly basis. Clean air intake screen if applicable. Increase air supply to water heater. Open a window and see what happens. Check for adequate draft going up chimney using match under vent hood to see if smoke drafts immediately upwards. Bleed air out of gas line. Check gas pressure.
Here's a few things to look for. After you light the pilot and turn on the burner, look at the pilot flame. Is it still a strong blue flame and it is still heating the thermocouple? If the pilot flame is a lazy yellow, it may not be able to keep a good enough flame on the thermocouple to keep it hot. The solution? Turn it all off and let it cool down. Take a can of compressed air, like you use to clean computer keyboards, and using the attached straw, blow out the dust or spider web that's partially blocking your pilot orifice. Where the pilot flame is usually lit, blow right down that flange, as well as through the air hole that is on the side of the pilot assembly. If you do it right, the pilot flame should be a nice and strong blue color. Another thought. Is this a vented or unvented fireplace? If it's vented, make sure it has the oxygen it needs to burn by checking for blocked vents or opening a closed fireplace fume above it. Douglas
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