ruud furnace codes

If you’re looking for help fixing your Ruud furnace, look no further! Our comprehensive Ruud furnace repair guide will explain common issues, provide troubleshooting tips, and show you how to read your model’s error codes.

CODE: LED is steadily on
PROBLEM: Normal fault detected.

CODE: Single LED flash
PROBLEM: Failed to detect flame within three attempts for ignition, 1-hour lockout.
FIX: Reboot system.

CODE: Two LED flashes
PROBLEM: The pressure switch is stuck open or induced draft blower problem detected.
FIX: Try to manually close the switch, replace the switch, or check blowers and vents for air pressure.

CODE: Three LED flashes
PROBLEM: The limit switch is open, or the roll-out control is engaged.
FIX: Check for a restricted air vent, loose blower wheel, a defective blower, or a dirty air filter.

CODE: Four LED flashes
PROBLEM: The pressure switch is stuck closed, or the switch won’t open.
FIX: Check for an obstruction in the pressure tubing.

CODE: Five LED flashes
PROBLEM: N/A

CODE: Six LED flashes
PROBLEM: Line and Neutral are reversed.
FIX: Control board or the furnace’s ground could be defective.

ruud furnace codes

 


What Our Clients Are Saying About Us

I would recommend KDM for sure

July 31, 2020

Dan was very friendly and polite from the start. Did exactly the work that we talked about on the phone, and was very quick making a late evening call on a Sunday. Tested all the joints and even painted the gas lines. I would recommend him for sure.

Colin JacobsCourtice, ON

I would recommend KDM for any of the services they provide

July 31, 2020

I had a 2nd hand pool heater hooked up and needed help getting it fired up. So I contacted Dan at KDM to see if they could help and was pleased he could make it over within a couple of days. He checked out the gas piping for leaks and proceeded to analyze the components of the control system and determined a faulty pressure switch was likely preventing operation. I was able to source the part and Dan was able to make a 2nd call within a day to install and complete the job. So in summary, I would recommend KDM for any of the services they provide.

Douglas PattersonWhitby, Ontario

KDM was hired for the Installation and relocation of internal gas line

July 31, 2020

KDM was hired for the Installation and relocation of internal gas line for my basement finishing project.

Paul AlisonOshawa, Ontario

Daniel and Steve were amazing, very professional work and courteous

July 31, 2020

Daniel and Steve were amazing, very professional work and courteous….never dealt with more friendly and knowledgeable Hvac technicians.

Rajshar MahomesMarkham, Ontario

I would not hesitate to hire Daniel and his crew again

July 31, 2020

Asked for quotes on a A/C and furnace after 17 years when the A/C unit broke down. I contacted a few HVAC contractors including KDM. Daniel could not have been more helpful and responsive and after reviewing the quotes decided to hire him for the job. Could no have made a better choice. Daniel was patient and upfront and answered all my questions when asked. He upgraded my A/C unit for the same price after the original unit we agreed upon was back ordered. The crew came when they said they would an completed the installation in a timely and orderly fashion.

I would not hesitate to hire Daniel and his crew again. In fact he is coming back to deal with another issue I have next month!

Job well done.

Ian DavidPickering, Ontario

I definitely recommend KDM Home & gas for others

July 31, 2020

I was looking for someone who can do the gas line connection on a weekend and I found the right guys with KDM Home & Gas. Daniel came on Sunday morning to do the work. He installed the new gas line, connected the new gas stove, confirmed no leaks and ensured everything works fine. It was a really hot day outside but he did an excellent job.

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RajeevAjax, Ontario

Everything was quick and efficient

July 31, 2020

Assessment happened on a holiday and work was completed the following day. Everything was quick and efficient.
Thanks Daniel.

Chris SouthamWhitby, Ontario