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I have a rheem classic 90 plus that has no heat, no fan
I have a rheem classic 90 plus that has no heat, no fan blowing for heat or air. The diagnostic leds are as follows flame=not lit, the next one=constant green, the next one=constant green. I have chan… read more
Rick
Rick
Supervisor
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Same unit rheem classic 90 plus. When I restart the furnace
Same unit rheem classic 90 plus. When I restart the furnace it goes thru start up fine including the ignition but when the blower kicks in the flame goes out and the ok light blinks.… read more
Phil
Phil
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Degree, Mech Engr Technology
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I have a Rheem Classic Plus Super Quiet 80 two -stage furnace.
I have a Rheem Classic Plus Super Quiet 80 two -stage furnace. It blows out cold air 90% of the time. I cut it off for 30 minutes and it worked for one heating cycle then back to cold air. I opened th… read more
BillyHvac
BillyHvac
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Hi, I have a Rheem 90 Classic Plus furnace. I am not seeing
Hi, I have a Rheem 90 Classic Plus furnace. I am not seeing any ignition, partial or temporary, when I turn on heat. Blower turns on, and at times will remain on for an extended period of time blowing… read more
Tim H.
Tim H.
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Hi, I have a Rheem classic 90 Plus furnace which is not turning
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BillyHvac
BillyHvac
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What is the best way to clean the permanent air filter(s) on
What is the best way to clean the permanent air filter(s) on a Rheem Classic 90 Plus furnace? On my updraft model there are two small woven steel mesh filters in the same enclosure that houses the ele… read more
Comfort Specialist
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Rheem Classic 90 Plus Furnace Blower kicks on. Burner is
Rheem Classic 90 Plus Furnace Blower kicks on. Burner is ignited. Runs for a minute then kicks off. Blower kicks back on but flame on burner is no longer appearing. Turn it off then on again. I have a… read more
BillyHvac
BillyHvac
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I have a Rheem classic 90 plus model number RGRA 09EZAJS, igniter
I have a Rheem classic 90 plus model number RGRA 09EZAJS, igniter isnt lighting and the OK led blinks 3 times, whats going on?… read more
BillyHvac
BillyHvac
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Rheem Classic Series 90 Plus 95% AFUE Upflow Gas Furnace
Rheem Classic® Series 90 Plus® 95% AFUE Upflow Gas Furnace will not fire. Power LED is ON OK LED blinks 5Xs FLAME LED is out This is the first time this unit is being started.… read more
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We have a rheem classic 90 plus. AC stopped working last night
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Richard
Richard
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My Rheem AC sounds like it is working but no air is coming
My Rheem AC sounds like it is working but no air is coming out of the vents. any suggestions?… read more
gotoman for ac
gotoman for ac
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We have a Rheem Classic 90 Plus, model RCBA 3765GGZ1XI. There
We have a Rheem Classic 90 Plus, model RCBA 3765GGZ1XI. There is a green light on, the air is coming through the vents, it sounds like it's on, but only cold air is coming out. It's getting colder and… read more
BillyHvac
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My Rheem classic 90 Plus wont ignite. Both LED lights are
My Rheem classic 90 Plus won't ignite. Both LED lights are solid green and there is not water backed up in the drain lines. The clear one shows condensation and the black one coming from the vent pipe… read more
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i have a rheem classic 90 plus and the furnace status indicator
i have a rheem classic 90 plus and the furnace status indicator is flashing 5 7. it looks like that means something needs to be done to the high pressure switch. Can anyone help me?… read more
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I have a Rheem Classic 90 Plus furnace that is 4 years old.
I have a Rheem Classic 90 Plus furnace that is 4 years old. it has 24V to the IFC but there are no LED lights on. When you tap the 24V relays the LED comes on and furnace will start for a few seconds … read more
Rick Mather
Rick Mather
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Rheem Classic 90 plus furnace/air not working this morning
Rheem Classic 90 plus furnace/air not working this morning - no heat. Thermostat seems ok (24vac at both red and white wire. After pushing in the filter interlock switch, on the control board the pwr … read more
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I am in Colorado, 20 deg outside. Furnace is apparently not
I am in Colorado, 20 deg outside. Furnace is apparently not working. I have turned it off now, and before I call repair people, I want to check the filter. Can I just open the filter access door, and … read more
coolman1973
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Good Evening, I have a Rheem Classic 90 Plus furnace that is
Good Evening, I have a Rheem Classic 90 Plus furnace that is 10 years old. It started shutting off today however will turn back on when turned off and then restarted. It will remain on for approximate… read more
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Meet the Experts:

Phil

Phil

Mechanical Engineer

7,634 satisfied customers

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Rick Mather

Rick Mather

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Matthew

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Brian HVAC Guy

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Kenton Guidry

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Rick Ridley

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Tom

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