Durham Region Air Conditioning Repair, Service and Installation
If you are an owner of Ruud furnace or operate it at your work, you may encounter with Ruud furnace error codes appearing in the operation process. The tables on the page describe the codes, flashes, blinks and other problem signals and let you understand what is going on with the equipment at a certain moment.
Ruud R801T Furnace Error Code
CODE: 0.
RESULT: Standby.
RESULT: Standby.
CODE: C.
RESULT: Compressor on (cooling or heat-pump heat).
RESULT: Compressor on (cooling or heat-pump heat).
CODE: H.
RESULT: Gas heat on.
RESULT: Gas heat on.
CODE: F.
RESULT: Continuous fan on.
RESULT: Continuous fan on.
CODE: 10.
RESULT: 1 hour lockout.
RESULT: 1 hour lockout.
CODE: 11.
RESULT: Failed ignition.
RESULT: Failed ignition.
CODE: 12.
RESULT: Low flame sense.
RESULT: Low flame sense.
CODE: 13.
RESULT: Flame lost.
RESULT: Flame lost.
CODE: 14.
RESULT: Unexpected flame.
RESULT: Unexpected flame.
CODE: 20.
RESULT: Twinning fault.
RESULT: Twinning fault.
CODE: 22.
RESULT: Main limit open.
RESULT: Main limit open.
CODE: 26.
RESULT: Line and neutral reversed.
RESULT: Line and neutral reversed.
CODE: 33.
RESULT: Mrlc (manual reset limit control) (aka roll-out) open.
RESULT: Mrlc (manual reset limit control) (aka roll-out) open.
CODE: 55.
RESULT: Pressure switch stuck closed when should be open.
RESULT: Pressure switch stuck closed when should be open.
CODE: 57.
RESULT: Press switch stuck open when should be closed.
RESULT: Press switch stuck open when should be closed.
CODE: 61.
RESULT: Blower fault-blower unable to run.
RESULT: Blower fault-blower unable to run.
CODE: 93.
RESULT: Internal control fault.
RESULT: Internal control fault.
Ruud U98V Furnace Error Code
FLAME LED: OFF.
RESULT: No flame is detected.
RESULT: No flame is detected.
FLAME LED: Rapid blink.
RESULT: Unexpected flame.
RESULT: Unexpected flame.
FLAME LED: Slow blink.
RESULT: Marginal flame sense.
RESULT: Marginal flame sense.
FLAME LED: Steady ON.
RESULT: Normal flame detected.
RESULT: Normal flame detected.
STATUS LED: Steady ON.
RESULT: Furnace.
RESULT: Furnace.
STATUS LED: 1 Blink.
RESULT: Ignition failure, 1 HR lockout.
FIX: Reboot system.
RESULT: Ignition failure, 1 HR lockout.
FIX: Reboot system.
STATUS LED: 2 Blinks.
RESULT: Pressure switch stuck open, switch will not close when inducer is on.
FIX: Try to manually close the switch, replace the switch, or check blowers and vents for air pressure.
RESULT: Pressure switch stuck open, switch will not close when inducer is on.
FIX: Try to manually close the switch, replace the switch, or check blowers and vents for air pressure.
STATUS LED: 3 Blinks.
RESULT: Limit switch open, main limit or roll out control
FIX: Check for a restricted air vent, loose blower wheel, a defective blower, or a dirty air filter.
RESULT: Limit switch open, main limit or roll out control
FIX: Check for a restricted air vent, loose blower wheel, a defective blower, or a dirty air filter.
STATUS LED: 4 Blinks.
RESULT: Pressure switch stuck closed, switch will not open.
FIX: Check for an obstruction in the pressure tubing.
RESULT: Pressure switch stuck closed, switch will not open.
FIX: Check for an obstruction in the pressure tubing.
STATUS LED: 5 Blinks.
RESULT: Not applicable.
RESULT: Not applicable.
STATUS LED: 6 Blinks.
RESULT: Line and neutral reversed.
FIX: Control board or the furnace's ground could be defective.
RESULT: Line and neutral reversed.
FIX: Control board or the furnace's ground could be defective.
POWER LED: OFF.
RESULT: No power (24 VAC) to control board.
RESULT: No power (24 VAC) to control board.
POWER LED: ON.
RESULT: Control is powered.
RESULT: Control is powered.
Ruud R802P Furnace Error Code
FLAME LED: OFF.
RESULT: No flame is detected.
RESULT: No flame is detected.
FLAME LED: Rapid Blink.
RESULT: Unexpected Flame.
RESULT: Unexpected Flame.
FLAME LED: Slow Blink.
RESULT: Marginal Flame Sense.
RESULT: Marginal Flame Sense.
FLAME LED: Steady ON.
RESULT: Normal Flame Detected.
RESULT: Normal Flame Detected.
STATUS LED: Steady ON.
RESULT: Normal Fault detected.
RESULT: Normal Fault detected.
STATUS LED: 1 Blink.
RESULT: Ignition failure, 1 HR lockout.
RESULT: Ignition failure, 1 HR lockout.
STATUS LED: 2 Blinks.
RESULT: Pressure switch stuck open switch will not close when inducer is on.
RESULT: Pressure switch stuck open switch will not close when inducer is on.
STATUS LED: 3 Blinks.
RESULT: Limit switch open main limit or roll-out control.
RESULT: Limit switch open main limit or roll-out control.
STATUS LED: 4 Blinks.
RESULT: Pressure switch stuck closed. Switch will not open.
RESULT: Pressure switch stuck closed. Switch will not open.
STATUS LED: 5 Blinks.
RESULT: Not applicable.
RESULT: Not applicable.
STATUS LED: 6 Blinks.
RESULT: Line and Neutral reversed.
RESULT: Line and Neutral reversed.
POWER LED: OFF.
RESULT: No power (24VAC) to control board.
RESULT: No power (24VAC) to control board.
POWER LED: ON.
RESULT: Control is powered.
RESULT: Control is powered.
Ruud R96P Furnace Error Code
GREEN LED: ON.
RESULT: Normal operation.
RESULT: Normal operation.
GREEN LED: 1 Flash.
RESULT: Ignition failure (4 trials).
RESULT: Ignition failure (4 trials).
GREEN LED: 2 Flashes.
RESULT: Pressure switch stuck open.
RESULT: Pressure switch stuck open.
GREEN LED: 3 Flashes.
RESULT: Limit switches open.
RESULT: Limit switches open.
GREEN LED: 4 Flashes.
RESULT: Pressure switch stuck closed.
RESULT: Pressure switch stuck closed.
GREEN LED: 5 Flashes.
RESULT: Twin fault.
RESULT: Twin fault.
GREEN LED: 6 Flashes.
RESULT: Brownout voltage.
RESULT: Brownout voltage.
GREEN LED: 7 Flashes.
RESULT: Hot and neutral reversed or no ground.
RESULT: Hot and neutral reversed or no ground.
GREEN LED: Continuous.
RESULT: Gas valve relay short.
RESULT: Gas valve relay short.
YELLOW LED: Rapid Blink.
RESULT: Flame out of sequence.
RESULT: Flame out of sequence.
YELLOW LED: Slow Blink.
RESULT: Low flame or no flame.
RESULT: Low flame or no flame.
YELLOW LED: ON.
RESULT: Flame present.
RESULT: Flame present.
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Apr 28, 2022
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Apr 28, 2022
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Apr 28, 2022
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Apr 28, 2022
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Apr 28, 2022
I left a live chat message on their website that my air conditioning was not working. Within 1hr a representative called me to discuss my options.
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The installers made sure everything was working properly before they left.
Apr 28, 2022
This is to thank Twintech Heating and Cooling for their exceptional and timely service. Mitch, their technician was very courteous and generous with his time right from his first meeting with us. He not only took the time to check everything but also educated us on why we needed what he recommended. Greg and Mitch graciously accommodated us on our requested day and time for job to be done. They were both very courteous and responsive to our needs and special requests especially in a tight spot. The job was finished neatly and on time. Thank you Twintech for your great service !
Apr 28, 2022
They came the day and time they had planned for us and were very fast and efficient! The AC works amazing and it is amazing during the heat of the summer we have already got! Thanks for everything you did for us!
Apr 28, 2022
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Apr 28, 2022
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