My mother turns her furnace down at night, so it has time to really cool down. when she gets up in the morning she turns up the thermostat to about 70 but the furnace has a hard time getting started again, it clicks for about a minute sometimes igniting a flame sometimes not at all (at least an hour) but eventually it will ignite, then it will work ok as long as the furnace is warm. The furnace is a Goodman unsure of model # but it is a downdraft heats about 1800 sq ft
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What you are describing is a lock-out condition that occurs after the furnace attempts to establish flame three times (usually) and fails, necessitating manual cycling of the power to 'reset' the circuit board. Its unusual that it is only happening at night unless the night temps drop extremely lower in you location than the daytime temps and the heat loss is greater so the furnace needs to come on more ofter. Hmmm.... Still a bit odd.
I'd have a tendency to inspect the flame rod or flame sensor and its connections back to the 'sensor' spade clip on the circuit board. It is responsible for signalling the control board that the flame has been established so gas can continue to flow feeding the flames. If it does not send the signal in a few short seconds after the gas valve opens, it shuts the system down and it re establishes the cycle again....only up to three times before a lockout.
Your system may not have a separate flame sensor and if not the ignition electrode or hot surface igniter itself performs double duty as the ignition device AND the flame sensor. If so, check the connections and make sure there is no oxidation between the wire and the connector.
Need your model # to check the codes but, this coming back on after turning the t-stat off is rare. You may have been in a lockout and the furnace re-started. Some furnaces try to start three times , then lock out. Time out, then re-start. The codes should be on your furnace blower door. Write back with this info and i could help.
I suppose this furnace is fueled by Natural Gas? (Or is it Propane-- Bottled gas?)
Did the Service company leave you any manual, with your new furnace? and I would think there was a warranty, for assuring you (the customer) satisfaction, no? Have you called the people who sold/installed it? What do they say?
If they did leave a manual-- what does it suggest for narrowing down your possible problems? Like: Low Fuel-- Low Voltage- Filter Changes, Fan switch problems- or ignition failure problems?
For a new furnace, someone should be right there to do a start-up for you!
That is usually the flame is dirty and not sensing the flame.
You can clean this by first turning off all the power to the furnace.
Take the door off to burner area and locating the flame sensor it looks like metal rod and it is in the flame of one of the burners.
Once you locate it, take a piece of extra fine steel wool and clean it.
Put door back on and turn power on and furnace should run.
Sounds like a dirty flame sensor.
Also 9 degrees is a large swing to recover. Most specialist will advise no more than a 5 degree set back, otherwise recovery time eliminates any savings you may achieve.
you might want to check the filter, if the filter is restricting the airflow the furnace will over heat and it will shut down. if you turn it off and on it will reset it and it will try again. Pull the filter out half way and try that, if it runs fine then clean the filter or get a less restrictive one.
Denise, my heater not a coleman (a monitor heater (oil) kept turning off when the temp got really cold. I would advise you to ask if you can do this, I addded an additive to my drum outside which holds the fuel. Because the deisel thickens up when it gets cold, which makes the heater have a harder time distributing the fuel to the heater. So far the heater has not kicked off.
Check the roll out switch(s) and the lock out switches. They are a small disc looking about the size of a nickle, with with 2 wires attached on them. There will be a re-set button in the middle that resembles a small peg. Push this in to re-set. As the glow coil shorted out, the fuse on the control board may have blown. On the newer furnaces find the main board and look for a car type fuse. If blown, replace. You also have the symptoms of a bad limit switch, by the clicking noise (the heat fan relay) and the blower fan running instantlly.