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.
See What Our Customers Are Saying:
Aug 20, 2022
From quote, to installation, to follow up, Twintech provided excellent service. I would highly recommended their services.
Aug 19, 2022
I had a really great experience with these guys. The salesman Bob was clearly very knowledgeable about everything to do with heating and cooling a home, spent a lot of time with us going over the details of the job, never rushed us and came back after the install to make sure we were happy. The installation crew was excellent, they covered the floors all the way from outside down to the basement furnace room, kept the place clean, got the work done on time and were very friendly. Ive got 15 years in the contracting/ construction industry and these guys are one of the most professional companys Ive dealt with. Great company!
Aug 18, 2022
Had great service and clean-up was good. Was happy with my salesman. They were very friendly and helpful. I needed a new furnace as our was over 20 years old. The furnace and air-conditioner work great and they are very quiet. I am very pleased with the service and product I received.
Aug 17, 2022
Met with Dave for the sales process and he was great about explaining and going over everything to us. The install happened very quickly and the team were super professional and friendly. We are very happy with this company and their services and we definitely recommend them to others. Thankful my sister recommended them to me!
Aug 16, 2022
Reviews for Twintech were good, and they did not disappoint. After an initial visit to discuss the suitable AC unit for replacement, an installation date was available in just a couple of days, and everything was installed without a hitch. Highly recommended
Aug 16, 2022
Very pleased with the installation of our new furnace and A/C unit. From quotation stage to the completion of the job Twintech was very professional.
Thank you for a job well done.
Aug 15, 2022
My old water heater quit on me. I called TwinTech. In less than 4 days, I had my new water heater installed and the old one taken away. The whole process was quick, easy, pleasant, and well done. This is the third time I've dealt with TwinTech and I've been satisfied each time.
Aug 14, 2022
I had them replace my furnace last year. When it came time for the air conditioner this year, I did not hesitate to call Twintech again. I will also have them perform regular maintenance on them.
Aug 13, 2022
We required a new HVAC replacement after running the old
system for 18 years.
Dave understood our requirements and gave us a quote that
covered all the necessary items.
Installation was fast and very tidy. Everything works as
it should. Our thanks to Greg, Mitch and others for their
excellent work. Recommend this family owned business to
anyone else, considering HVAC or other work.
Aug 12, 2022
I needed a new furnace and A/C to replace my 21 yr. old units, and went to the internet to view potential companies in May, I received 3 quotes,
and chose Twintech based on their salesman Dave who was very detailed and covered off everything on what Twintech was all about,
an extremely dedicated company with so many years of experience, and after reading the on line reviews I was sold on Twintech, who did not disappoint as the installation team were top notch with Greg leading,
I would highly recommend this company without any doubts, in my books they are first class all the way. Our new Amana furnace and A/C are working perfectly !