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Durham Region Air Conditioning Repair, Service and Installation

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Each of the following status codes is a two digit number with the first digit determined by number of flashes of the yellow led and the second digit determined by number of flashes of the green led.


Like many furnace manufacturers, Bryant uses flashing LED lights to indicate error codes that can give you an idea of what's wrong with your furnace when it's not functioning properly. The short flashes indicate the first digit of the two-digit code, and the long flashes indicate the second digit. Here's are some common error codes.


CODE: RED LED1 ON.
RESULT: Furnace is operating in emergency heat.

CODE: RED LED2 ON.
RESULT: The microprocessor has malfunctioned. To reset: Put setup switch "SW-1" in the "ON" position nad jumper thermostat terminals "R", "W/W1" and "Y/Y2" simultaneously with the door switch pushed in and power to the unit "ON". Disconnect jumper and place setup switch in the "OFF" position. If LED2 reappears, replace main control board.

CODE: YELLOW LED3 ON.
RESULT: Furnace is operating in high heat.

CODE: GREEN LED4 ON.
RESULT: Furnace is operating in low heat.

CODE: RED LED2 FLASHING.
RESULT: Line voltage polarity is reversed.

CODE: 1-1.
RESULT: NO FAULT IN RECENT HISTORY DISPLAY
FIX: Indicates no faults have occurred within the last five cycles. To read recent fault history, put setup switch "SW-1" in the "ON" position. To clear recent fault history, put setup switch "SW-1" in the "ON" position and jumper thermostat terminals "R", "W/W1" and "Y/Y2" simultaneously until an "11" is flashed.

CODE: 1-2.
RESULT: BLOWER CALIBRATION LOCKOUT
FIX: Indicates RPM calculated for low heat was less than 250 RPM or greater than 1300 RPM on two successive attempts. Auto reset after three hours. Reset power and refer to fault #44 section.

CODE: 1-3.
RESULT: LIMIT SWITCH LOCKOUT
FIX: Indicates the occurrence of 10 successive limit trips during high heat or three successive limit trips during low heat. Auto reset after three hours. Check for *Improper or misaligned limit and/or limit shield. *Improper high or low heat gas input adjustment. *Stuck high heat solenoid in gas valve.

CODE: 1-4.
RESULT: IGNITION LOCKOUT
FIX: Control will auto-reset after three hours.

CODE: 2-1.
RESULT: INVALID MODEL SELECTION
FIX: Indicates model plug is missing or incorrect. See wiring diagram for correct connector jumper location.

CODE: 2-2.
RESULT: SETUP ERROR
FIX: Indicates setup switch "SW-1" or "SW-6" is positioned improperly. The following combinations will cause the fault: *Thermostat call with "SW-1" "ON", or Thermostat call with "SW-6" "ON", or "SW-1" and "SW-6" both "ON" together.

CODE: 2-3.
RESULT: INVALID BLOWER AIRFLOW SELECTION
FIX: Indicates improper "A/C" or "CF" switch setting. The 042 and 14 units can deliver 1-1/2 to 3-1/2 tons A/C and 600 to 1400 CFM for continuous fan. The 060 and 20 unit can deliver 2 to 5 tons A/C and 800 to 2000 CFM for continuous fan. If code is flashing, unit will default tp closest allowable airflow.

CODE: 2-4.
RESULT: SECONDARY VOLTAGE FUSE IS OPEN
FIX: Check for: - Short circuit in secondary voltage (24VAC) wiring.

CODE: 3-1.
RESULT: PRESSURE SWITCH DID NOT CLOSE OR REOPENED
FIX: If open longer than five minutes, inducer shuts off for 15 minutes before retry. Check for: - Excessive wind - Proper vent sizing -- Defective inducer motor - Low inducer voltage (115VAC) - Defective pressure switch -Inadequate combustion air supply - Restricted vent - Disconnected or obstructed pressure tubing - Low inlet gas pressure (if LGPS used) If it opens during blower ondelay period, blower will come on for the selected blower off-delay.

CODE: 3-3.
RESULT: LIMIT CIRCUIT FAULT
FIX: Indicates a limit, or flame rollout is open. Blower will run for 4 minutes or until open switch remakes whichever is longer. If open longer than 3 minutes, code changes to lockout #13. If open less than 3 minutes status code #33 continues to flash until blower shuts of Flame rollout switch requires manual reset. Check for: - Restricted vent - Proper vent sizing - Loose blower wheel - Excessive wind - Dirty filter or restricted duct system. - Defective blower motor or capacitor. - Defective switch or connections. - Inadequate combustion air supply (Flame Roll-out Switch open).

CODE: 3-4.
RESULT: IGNITION PROVING FAILURE
FIX: Control will try three more times before lockout #14 occurs. If flame signal lost during blower on-delay period, blower will come on for the selected blower off-delay. Check for: - Control ground continuity - Flame sensor must not be grounded - Oxide buildup on flame sensor (clean with fine steel wool) - Proper flame sense microamps (.5 microamps D.C. min., 4.0 - 6.0 nominal). - Gas valve defective or gas valve turned off - Manual valve shut-off - Defective Hot Surface Ignitor - Low inlet gas pressure - Inadequate flame carryover or rough ignition - Green/Yellow wire MUST be connected to furnace sheet metal.

CODE: 4-1.
RESULT: BLOWER OUTSIDE VALID SPEED RANGE
FIX: Indicates the blower is not operating at the calculated RPM. If this fault occurs in conjunction with fault #44 check wiring to motor otherwise refer to the trouble-shooting guide.

CODE: 4-2.
RESULT: INDUCER OUTSIDE VALID SPEED RANGE
FIX: Indicates the inducer is not operating at the calculated RPM. Or it has not started within 10 seconds after a call for heat. Check wiring to motor otherwise refer to the troubleshooting guide.

CODE: 4-3.
RESULT: PRESSURE SWITCH CALIBRATION FAULT
FIX: Indicates the low and high pressure switch "make" points during high heat purge are not within calibration range. Check for: -Plugged condensate drain Water in vent piping, possibly sagging pipe -Improper pressure switch wiring or pressure switch tubing connections -Failed or "out of calibration" pressure switches.

CODE: 4-4.
RESULT: BLOWER CALIBRATION FAULT
FIX: Indicates the calculated blower speed is below 250 or above 1300 RPM. Unit will default to low or high heat mode if possible. If this fault occurs in conjunection with fault #41, check wiring to motor otherwise refer to the trouble shooting guide. If this fault occurs by itself, check for undersized ductwork, or excessive static caused by a dirty filter, or closed registers.

CODE: 4-5.
RESULT: CONTROL CIRCUITRY LOCKOUT
FIX: Auto-reset after one hour lockout due to; - Gas valve relay stuck open - Flame sense circuit failure - Software check error Reset power to clear lockout. Replace control if status code repeats.


See What Our Customers Are Saying:

by Private User on Twintech Heating and Cooling

Flawless transaction. They did exactly what they promised, showed-up on time, cleaned-up, and were highly professional. Highly recommended.

by Bill Edmondson on Twintech Heating and Cooling

Salesperson and 2 man installation team were all professional and
knew their stuff. All three were friendly and helpful, answering all
my questions. The quality of their work demonstrated their experience
and expertise in their field.

by Private User on Twintech Heating and Cooling

A dear late cousin of mine recommended this company and I have been happy with the service.

by Private User on Twintech Heating and Cooling

We are very pleased with the work done by Twintech. They were very professional from start to finish. Dave came to our home and gave us a very competitive quote for new high efficiency furnace and air conditioner. The installers were very courteous and professional. We would highly recommend them.

by W1n5t0n1987! on Twintech Heating and Cooling

Great experience getting an old furnace replaced.
Sales Guy (Dave) was great - honest, responsive, and friendly.
The work itself was done quickly and we are very happy with the outcome, thank you! We recommend TwinTech!

by Private User on Twintech Heating and Cooling

This review is late coming so my apologies to the amazing Twin Tech team! I contacted Dave at Twin Tech for a quote this past Feb (as I was collecting a few) and his recommendation was excellent. From the first meeting with Dave to the team installing the new furnace, not once did i feel uncomfortable . The team were extremely professional yet personable and clean and tidy. Decent companies still exist!
The new furnace just purrs and its just amazing the difference it has made!
(PS my sibling ended up getting a furnace from them as well)

by Private User on Twintech Heating and Cooling

The service was Twintech was excellent.
Dave our salesperson was easy to talk to and was professional. The unit recommended meets our needs and budget.
Greg and his team arrived on time for the installation and even got rid of the garbage the contractors left in our furnace.
Would definitely recommend Twintech.

by Steve V, Toronto on Twintech Heating and Cooling

Our old water tank was installed in 1997. Wasn't working as well as it should so we looked into a tankless as it is more efficient and a space saver! we had used Twintech in the past for a furnace cleaning and were satisfied with that so we decided to ask for a quote for the changeover. Gary arrived and provided the options and the quote fit within our budget so we decide to go with them after receiving a few alternative quotes from other companies. They did what the said would be done and it was completed within a reasonable time frame! Removal and cleanup of the old tank was seamless. We are now enjoying consistent and efficient Hot water! I recommend Twintech and would use them for future projects!

by New AC Unit + Humidifier on Twintech Heating and Cooling

One of the most honest HVAC companies out there! Dave was very helpful and informative in helping us choose a new AC unit. While they weren’t the lowest quote, we went with them because we trusted Dave and he was the most honest guy out of the companies that quoted us.
Greg and his crew who installed the unit were very professional and did a great job. If I could do it over again I would choose Twintech again.

by Private User on Twintech Heating and Cooling

Relocated and replaced our air conditioning unit. Fast, professional, and high quality service. We would definitely use them again for future projects!