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Furnace will light run afew seconds shuts down and restarts. It dosnt go in to lockout just keeps firering and shutting down

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Have you checked your filter? It sounds like it is cycling on a high limit safety.

Posted on Jun 21, 2009

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Goodman Model C16-28 1FF is not able to heat my basement. The burners igniting but only fire for approximately 5 seconds. This cycle continues about every 60 seconds. At times the burners only stay on for...


Sounds as though your issue lies within the flame sensor.

The flame sensor senses that there is flame present once there is a call for heat. It sends its signal back the board or ICM and the furnace operates as normal. If no signal is sent, then the furnace automatically shuts down as a safety procedure. The furnace will attempt to light several times before shutting down on a fault code or lockout.


The number 1 reason for flame sensors to fail is they are dirty. Check the sensor for dirt build-up. Clean the sensor with a damp rag or a scratch pad. Inspect the grommets for crackings. Also check and clean all grounds. If this doesn't work, you will need to replace the sensor or call for a service technician to ensure the sensor is the only issue at hand.

Jan 08, 2010 | Goodman Heating & Cooling

1 Answer

GMP050-3 heater, gas turns on and lights for 5-7 seconds and just as thr igniter goes dim the gas shuts off. after 3 cycles the erd LED flashes on/off at a 1.5 seconds on and 1.5 sec off Gary


After the gas turns on, it is the flame sensor's job to see that ignition took place and send 24v to the gas valve. If it does not do this, the gas valve shuts down as a safety precaution. After 3 tries, the furnace will go into "lockout" and will not let it attempt to start again. The lockout can be resolved by turning off the power to the furnace for a couple minutes and then turning it back on. Sounds like the real problem is a faulty flame sensor not sending 24v to the gas valve. Sometimes they can be cleaned with a piece of sandcloth. This will cure failure to recognize the flame due to carbon build up on the sensor. Otherwise, the sensor will need to be replaced. Hope this helps!

Dec 16, 2008 | Goodman Heating & Cooling

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My becket honeywell r7184p oil burner monitor is not resetting it keeps blinking a fast green. What should i be looking for?


my Beckett oil burner with a honeywell R7184P just did the same thing. Quit burning, blinks for half a second. The burner says press reset once, if it does not reset then call a local serviceman. It is cold here in Alaska, you betcha', and my oil must have jelled up. It happened once, but pressing reset solved my problem, two days later it stopped again. I applied heat (hair dryer) to my supply line, added an anti-jelling solution to my tank. Here is what I found.

"The Honeywell R7184P-1080 (interrupted control—transformer shuts down 10 seconds after flame is established) is now the standard control used on all Beckett oil burners along with the new “Cleancut” pump. The Honeywell control has both a 15 second pre-purge and a 15 second post purge feature, as well as internal self-checking of the control itself. The control has 15 second lockout timing plus a 10 second ignition carry over period. After 3 lockouts during the same call for heat, the control goes into restricted lockout., A restricted lockout condition may be reset by holding the reset button down for 30 seconds until the LED flashes twice. At any time the control is powered, the reset button may be held for 30 seconds to reset the lockout counter. There are several new “Service Features” with the R7184P control that make for easier servicing."

You have to press the reset button for thirty seconds. I don't know how cold it it there, or what number oil you guys are burning, but what I do know is that you guys have been pressing your reset button more than once.

This worked for me. Good luck.

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Need more info. Are you saying that when tstat calls for heat then it short cycles. But if you turn it off then back on it runs ok?

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