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ruud air conditioner error codes

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ruud air conditioner error codes
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ruud air conditioner codes

The flashing LEDs on your A/C will correspond to a specific fault code that is shown here.

Comfort Alert Diagnosis Chart Single Phase Unit.


CODE: Green "POWER".
RESULT: Module has power.
FIX: Supply voltage is present at module terminals.

CODE: Red "TRIP".
RESULT: Thermostat demand signal Y1 is present, but the compressor is not running.
FIX: Compressor internal overload is open. Broken wire or connector is not making contact. Low pressure switch open, if present. Compressor contactor has failed open.

CODE: Yellow "ALERT" Flash Code 1.
RESULT: Long Run Time Compressor is running extremely long run cycles.
FIX: Low refrigerant charge. Evaporator blower is not running. Evaporator coil is frozen. Faulty TXV. Condenser coil is dirty. Liquid line restriction (filter drier blocked if present in system). Thermostat is malfunctioning.

CODE: Yellow "ALERT" Flash Code 2.
RESULT: System Pressure Trip Discharge or suction pressure out of limits or compressor overloaded.
FIX: Condenser coil poor air circulation (dirty, blocked, damaged). Condenser fan is not running. Return air duct has substantial leakage. If low pressure switch is present, check flash code (1) information.

CODE: Yellow "ALERT" Flash Code 3.
RESULT: Short Cycling Compressor is running only briefly.
FIX: High head pressure. Thermostat demand signal is intermittent. Time delay relay defective, if present. Hot gas sensor defective, if present.

CODE: Yellow "ALERT" Flash Code 4.
RESULT: Locked Rotor.
FIX: Run capacitor has failed. Low line voltage (contact utility if voltage at disconnect is low). Excessive liquid refrigerant in compressor. Compressor bearings are seized.

CODE: Yellow "ALERT" Flash Code 5.
RESULT: Open Circuit.
FIX: Compressor contactor has failed open. High pressure switch is open, If present. Open circuit in compressor supply wiring or connections. Unusually long compressor protector reset time due to extreme ambient temperature. Compressor windings are damaged.

CODE: Yellow "ALERT" Flash Code 6.
RESULT: Open Start Circuit Current only in run circuit.
FIX: Run capacitor has failed. Open circuit in compressor start wiring or connections. Compressor start winding is damaged.

CODE: Yellow "ALERT" Flash Code 7.
RESULT: Open Run Circuit Current only in start circuit.
FIX: Open circuit in compressor run wiring or connections. Compressor run winding is damaged.

CODE: Yellow "ALERT" Flash Code 8.
RESULT: Welded Contactor Compressor always runs.
FIX: Compressor contactor has failed closed. Thermostat demand signal not connected to module.

CODE: Yellow "ALERT" Flash Code 9.
RESULT: Low Voltage Control circuit < 17VAC.
FIX: Control circuit transformer is overloaded. Low line voltage (contact utility if voltage at disconnect is low).

ruud air conditioner error codes

ruud air conditioner codes


See What Our Customers Are Saying:

by Jacqueline Graham on Twintech Heating and Cooling

Twintech Heating & Cooling installed my furnace in 2022 and in fall of 2023 installed my Panasonic Heat Pump. Greg and Mitch did a great job. Helped me through the rebate process. Super happy with the Heat Pump. Only used my furnace 5 times this winter. Energy bills lower, carbon emissions lower.Thank you Twintech. I recommend highly!

by Bill Grainger on Twintech Heating and Cooling

Just had a new furnace installed by Twintech. I can’t express how great these guys are at what they do. From the sales to installation they were professional all the way. Very reasonable pricing and courteous during the installation and willing to answer any questions I had. Highly recommended !!!

by Colin Vernon on Twintech Heating and Cooling

They've cleaned my furnace a couple of times and mentioned that the hot water tank standards were going to change soon so I decided to change mine out.

There were a few challenges during the process but the installers handled the problems without missing a stride! I now have really hot water again!

by Heidi B on Twintech Heating and Cooling

Highly recommend Twintech Heating company, we got honest and detailed information on what was needed to replace and install a new gas furnace. Bob and Greg made us feel comfortable withe process through their thorough explanation and knowledge of the right furnace for our needs. The professionalism and courteous friendly attitude towards the customer is what we liked the most as they treated us like family. So happy with our decision and new furnace we will be looking into get our rental water heater replaced and installed by Twintech team. We feel better having their knowledge on our side and will only trust them with any further maintenance of furnace.

by Kirushanth Rasiah on Twintech Heating and Cooling

Customer service and knowledge is priority in this industry, and Twintech has it. I've dealt with their team for maintenance and a furnace replacement. They're accommodating and make great recommendations, and came through at a great price over the big guys in the industry. They'll be my next call when I need service or maintenance.

by Leonard Glass on Twintech Heating and Cooling

I decided that the noises and age of the existing furnace which was old and not very efficient to replace it. Gave Greg a call and Grant and Greg got to work on it. Because of supply issues with the current heating type that would be an easier install Greg convinced me to change the location of the system and it would provide me better service for heat and efficiency. I had skeptical but went ahead anyway putting trust in Greg And Grant. Greg, Grant and Mitch came through and in 2 days had completely relocated my heating and A/C system. I can honestly say Greg was right my old house has been warmer and more evenly heated as it ever was. For anyone reading this rather long winded review can take my word for it, Twin Tech can take care of your needs.

by Nicole Alain on Twintech Heating and Cooling

I called Twin Tech when my air conditioning stopped working. Greg came over to diagnose the issue - the same day. He was able to diagnose the issue and resolve it quite quickly. Although it was a quick fix, Greg was very thorough in explaining the issue and provided great advice. Not to mention, I felt very comfortable having Greg in my home - which I consider very important when hiring a service provider. Twin Tech will be my go-to from now on. Thank you!!

by Cibele Ceroni on Twintech Heating and Cooling

Great Team! Furnace broke in the weekend, Bob visited same day and Greg installed new one on Monday. Team was professional, respectful and knowledgeable. Installation went very well, Greg found solutions to challenges, like hiding new conduits in the ceiling. Looks nice and new furnace is working great. Five Stars.

by Jackie Graham on Twintech Heating and Cooling

I used Twintech to install a new furnace for my home. Bob was terrific in explaining the sizing options and why the 2 stage furnace was the best option for me. Greg did a great job installing, clean and on time. Finished work looks great but the best part is how it works. The 2 stage heating is so much more comfortable. I run the fan continuously to keep the indoor air clean. Great investment! Would highly recommendTwintech!

by Anthony Silva on Twintech Heating and Cooling

I’m going to start this by saying I’m a very particular customer. My background is in mathematics and mechanical engineering so I have an eye for detail and a respect for technical knowledge.
Greg had already done an AC inspection and replaced a water heater tank and there was no question in my mind who to deal with replacing my rickety old furnace after it got pooched.
Bob dropped in ahead of time and clearly (and knowledgeably) outlined all technical, price and operational options.
Greg showed up on time, on the agreed date and did a fantastic job. (The OLD furnace was a house of horrors and was installed in a keystone cops sort of way- careless.)
The work Greg did was HIGHLY PROFESSIONAL and FAR MORE FUNCTIONAL than what I had.
I’m also a musician with many instruments so maintaining predictable humidity/temperature is extremely important to me. Greg recognized this as did Bob. You NEVER feel like you’re being brushed off.
In summary, if you’re looking for PROFESSIONAL, QUALITY results by an EXPERIENCED, THOUGHTFUL team
(that also happen to be FRIENDLY and ATTENTIVE ) then you’ve come to the right page!!

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ruud air conditioner error codes

See What Our Customers Are Saying:

by Jacqueline Graham on Twintech Heating and Cooling

Twintech Heating & Cooling installed my furnace in 2022 and in fall of 2023 installed my Panasonic Heat Pump. Greg and Mitch did a great job. Helped me through the rebate process. Super happy with the Heat Pump. Only used my furnace 5 times this winter. Energy bills lower, carbon emissions lower.Thank you Twintech. I recommend highly!

by Bill Grainger on Twintech Heating and Cooling

Just had a new furnace installed by Twintech. I can’t express how great these guys are at what they do. From the sales to installation they were professional all the way. Very reasonable pricing and courteous during the installation and willing to answer any questions I had. Highly recommended !!!

by Colin Vernon on Twintech Heating and Cooling

They've cleaned my furnace a couple of times and mentioned that the hot water tank standards were going to change soon so I decided to change mine out.

There were a few challenges during the process but the installers handled the problems without missing a stride! I now have really hot water again!

by Heidi B on Twintech Heating and Cooling

Highly recommend Twintech Heating company, we got honest and detailed information on what was needed to replace and install a new gas furnace. Bob and Greg made us feel comfortable withe process through their thorough explanation and knowledge of the right furnace for our needs. The professionalism and courteous friendly attitude towards the customer is what we liked the most as they treated us like family. So happy with our decision and new furnace we will be looking into get our rental water heater replaced and installed by Twintech team. We feel better having their knowledge on our side and will only trust them with any further maintenance of furnace.

by Kirushanth Rasiah on Twintech Heating and Cooling

Customer service and knowledge is priority in this industry, and Twintech has it. I've dealt with their team for maintenance and a furnace replacement. They're accommodating and make great recommendations, and came through at a great price over the big guys in the industry. They'll be my next call when I need service or maintenance.

Can My Panasonic Heat Pump Overheat?

  • SUBMITTED BY:
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  • - January 22, 2024

Heat pumps, including those manufactured by Panasonic, are designed with safety features to prevent overheating. However, like any mechanical system, issues can arise that may lead to overheating if not addressed. Here are some factors to consider:

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Why is My Heat Pump Leaking Black Mold?

  • SUBMITTED BY:
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  • - November 6, 2023

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  • - June 4, 2024

Ensuring your air conditioner (AC) stays in good working condition can save you from costly repairs and keep your home comfortable. Here are some key steps to prevent your AC from breaking down: 1. Regular Maintenance Schedule Annual Profess

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Signs You're in Desperate Need of AC Repair

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - July 25, 2024

Signs You're in Desperate Need of AC Repair 1. Weak or Insufficient Airflow If you notice that your air conditioner is blowing weak or insufficient air, it might indicate a problem with the compressor or blocked ducts. Weak airflow can also

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