We filled the tank, had the furnace turned off for a few hours and when we relite the furnace it wouldn't light, changed the nozzle and it works but rumbles. what is the setting for a miller gun furnace electrode? and what nozzle do you recomend?
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Re: furnace rumbles when it turns on
Varies from burner to burner to burner , should replace with the same as you removed , the numbers are very important on the nozzle one of the numbers is the degree of the fire pattern the nozzle produces ex. a 90 degree or 80 degree etc . this is determined by the way the fire box in the furnace is insulated . the other number is gallons per hour of oil the furnace is set up to use , ex. .70 gph or .80 gph all of these numbers are critical and should not be changed except by an expert or you could damage your furnace and could possibly be dangerous . the numbers will be on your old nozzle and should go back with same one , as to the adjustment , they also vary ,but i can give you one that will usually work for most furnaces , that is one eighth inch space between electrode tips , five eights in front of nozzle port opening , and one half inch above center of nozzle center , where the hole is . bleed all air out of system after installing nozzle , let me know if no fix have more ideas
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I think the problem is with the Over Fill Protection Device valve in the propane tank and it's locked up the grill's regulator. To solve the problem turn the tank valve OFF. Disconnect the grill's hose from the tank and wait 5 minutes. Reconnect the hose to the tank and turn the tank valve ON VERY, VERY SLOWLY (Slow motion, slow). Once the valve is fully open, turn on and light the burner that farthest from the grill first. Does the burner light and the flame height look correct? If so, light the remaining burners the same way. Now, do all the burners flames look correct? If so, you solved the problem. Remember to always turn the tank valve ON very,very slowly.
If the above didn't solve the problem, you will need to replace the grill's hose/regulator assembly. You can purchase one at any home center or hardware store that sells gas grills and accessories. Take your old one with you for comparison purposes.
Hope this helped you to solve the problem. Please let me know. Thanks and Happy Grilling!!
on the bottom of the unit there is an access door remove it and behind it you will find a gas valve and a pilot find the piolot......turn off the gas valve and move the selector to piolot depress the switch and at the same time place the flame from a log lighter onto the pilot light after this lights turn the gas valve to run and the burner should light.
You will need to reset the furnace by turning the power off to it. Then as the furnace tries to light, watch the LED for blinking. Hopefully it will give a code other than 1. Try checking the air filter for blockage, make sure all hoses are free of moisture and any drains are not blocked. Check the air intake and exhaust pipe for sags where water could block it.
The sequence of operation is this:
Thermostat calls for heat, the LED may blink telling you it registers the call. The inducer (exhaust) blower starts closing contacts in the pressure switch (small disc shaped thing), the igniter glows orange (seen thru a small window high up on furnace front), gas valve opens allowing main burner to light, flame travels to all other burners, flame rod senses flame within a few seconds and keeps gas on. Room air blower starts within 90 seconds.
Any deviation or delay in this sequence and it goes into lock-out.
turn the breaker off to the furnace or the switch next to furnace and turn it back on or you have to purge the line crack the line right where it ties to the gas valve or the furnace then turn the switch off and back on
Make sure the blower access panels are on firmly. There is a safety switch on most gas furnaces that will prevent operation in the event the blower access panel is not on or loosened. Also make sure a power switch (sometimes looks like a light switch) was not accidentally left "off". :-)
I hope you find this to be very helpful moving forward.
If the blower access panel is not the problem, let us know and we'll dig deeper. :-)
On the burner unit near where the inlet line enters the unit you will find a little bleeder screw It should require a small 1/4 or 5/16" wrench to open it DO NOT remove it just open it a full turn or 2 Fuel and air will come out of the top of this fitting Once no more air comes out close the bleeder, clean up any spilled fuel and restart the furnace You may have to do this a couple of times to get all the air out of your lines
hi there i come from the uk, but it sounds to me as though it maynot be a thermocouple as if it was the pilot would light when you held it in & go out when you let it go.
it seems to me as though the pilot injector could be blocked no gas getting through to it ? or possibly there is a break in the insulation of the igniter so that when you try & light it it just earths out to the heaters metalwork.
These are just a few ideas that might shed some light on your problem?