Question about Rheem Gas Furnace 60000 Btu 95% Afue. Rgrc Model

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Why is my 95% rheem furnace blinking code 2

Flame comes on then shuts off when blower kicks on

Posted by charles on

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schultzharry

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Check condensate water /drain stopped up. It will allow a start after a reset but then it shuts the combustion air fan down and that shuts the unit down this will require a service tech make sure their familiar
with 95% units

Posted on May 25, 2014

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Jeff Dimond

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SOURCE: Rheem furnace has 2 green lights 1 is slowly blinking

you can check the inside door chart, and it will map out the led light readout for you. just follow the instructions on the panel and it will tell you possible problems and what you may need to fix to make your unit run correctly.

Posted on Nov 20, 2012

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Dec 16, 2015 | Heating & Cooling

1 Answer

Furnace kicks on and heats up for 5 min. then will shut down - no flame - main blower will run for a few min and then the whole cycle will start again. flame sensor checked ok with meter at approx 5.0


What is your temperature rise during the 5 minutes it does run? Could be overheating and kicking out on limit switch. Watch the diagnostic light for a code. (3 blinks means this, 4 blinks means that etc.)

Jan 09, 2014 | Amana Heating & Cooling

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Protech 62-24084-02 troubleshooting


62-24084-02 LED CODES
POWER LED - GREEN
ON - Normal
OFF - No power to board
OK LED - GREEN
One Blink - One hour retry delay
Two Blinks - Pressure switch failure (remains open)
Three Blinks - Limit switch fault
Four Blinks - Pressure switch failure (remains closed)
Five Blinks - Twinning fault
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ON - Good flame
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Slow Blink - Marginal flame

Jan 01, 2014 | Protech Rheem/62-24084-82-1PK - Integrated...

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Goodman furnace has 3 blinking lights, indicating pressure switch stuck open. Any help?


The flame sensor needs to be cleaned. This video might help you understand how to clean the flame sensor.

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Rheem 90+ NG Furnace. When furnace starts, draft inducer starts, ignitor glows and gas ignites. Burners stay lit for 10 seconds or so, then the flame reduces for a few seconds then goes out. Main blower...


Check the draft inducer air switch ( vacuum diaphragm switch) If the switch is opening when the burner starts, you might have a blockage on air piping coming into the furnace. Also prime the condensate trap on the condensate drain from the combustion fan. Also check the gas pressure, if your gas pressure is dropping, the gas pressure switch will shut it down. If it's too high the moment it comes on could raise the pressure in the furnace dropping out the combustion fan proving switch.

Oct 29, 2010 | Electric Circuit Breaker Kit for Furnace

1 Answer

Furnace cuts off before reaching set temp.


You can make sure it is not the thermostat by crossing or jumping the R and W terminals (or associated wires) together. This will keep the furnace calling for heat. As it is approaching set temperature, get in front of the furnace and inspect the air filter to make sure it is clean, watch the control module for any error codes that may be turning off the system prematurely.

On a call for heat, the 24 volt thermostat sends a signal to the control module. The control module will indicate a call for heat with a light on the control either blinking or remain solid depending upon model. The inducer (exhaust) blower will purge all gasses from the furnace and pressurize a pressure switch. Once the pressure switch tells the module to continue, the electronic ignition will energize and send 120 volts to the igniter. The igniter will glow and you will be able to see it if viewed thru the small inspection port. Once the igniter gets hot enough, it sends a signal to the module opening up the gas valve (24 volts). Either a pilot will come on or the burner tube will ignite then spread the flame to all burners. Lastly a safety sensor will be looking for a certain temperature within a few seconds and the furnace will continue to operate and the room air blower will turn on in a minute or two.

What could go wrong? The unit will not run if there is no signal from the thermostat (bad thermostat or broken wire), the control module does not sense a signal from the thermostat (bad control), the inducer does not energize (bad motor), the pressure switch does not close (blocked vent piping, bad switch, plugged condensate hose), the igniter does not energize (bad control, bad igniter), the gas valve does not open or there is no gas (bad gas valve, broken wire, no gas), the pilot does not light (dirty pilot), the burner does not light (bad burner, plugged orifice, not enough combustion air), the flame does not spread to each burner (bad flame spreader, dirty flame spreader, more bad burners), the flame safety sensor does not detect flame (dirty or bad flame spreader, bad flame sensor, broken wire, bad control), or the room air blower does not energize (bad fan motor, bad control).

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1 Answer

Rheem gas furnace pilot lights, but no burners or fan


If the burners do not fully ignite, the sensor will shut the furnace down. The lack of sufficient burner flame is a gas valve or gas pressure problem within the valve.
Replacing the gas valve with the original one may get you going. I surely suggest a professional service company for safety reasons and a thorough inspection. A 20 year old furnace is past it's normal life span.

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