Durham Region Air Conditioning Repair, Service and Installation
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.
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.
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.
RESULT: Furnace is operating in high heat.
CODE: GREEN LED4 ON.
RESULT: Furnace is operating in low heat.
RESULT: Furnace is operating in low heat.
CODE: RED LED2 FLASHING.
RESULT: Line voltage polarity is reversed.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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).
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.
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.
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.
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.
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.
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.
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:
Jan 1, 2015
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Jan 1, 2015
To whom it may concern, I recently had TwinTech (Greg and Grant Dainty) replace my furnace and service both my gas fireplaces and air conditioning unit. They were professional, courteous and very fair in their pricing. I would gladly recommend TwinTech to anyone needing work done. I can be contacted at 905-626-XXXX.
Jan 1, 2015
My Fiancé and I have relied on Twintech Heating and Cooling now for the better part of the last 10 years. In that time, Greg has installed a furnace, an air conditioner, and a heat-pump at our residence in Toronto. In each instance Greg and his team were a pleasure to deal with. They were courteous and professional throughout the whole process and the quality of their work is first rate. Our experiences have always been extremely positive and we have referred his services numerous times to our friends and family. Without hesitation, I would recommend Greg and TwinTech Heating and Cooling to anyone looking to service or replace their existing heat/AC equipment
See What Our Customers Are Saying:
Feb 18, 2025
Very pleased with the professional service that TwinTech Heating and Cooling provided in replacing my furnace. I got several quotes from different service providers. Their price was excellent and they explained the features very well. We are very glad we went with TwinTech and highly recommend their services.
Feb 18, 2025
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Feb 18, 2025
TwinTech is an excellent and honest company! I called them for a second opinion after being told by another company that I needed to replace my furnace. Turns out this was not the case at all! I did not need a new furnace. TwinTech did not push to make an unnecessary sale and saved me from a huge expense. Bob and Mitch were extremely professional and above all honest! I definitely recommend TwinTech!
Feb 18, 2025
Amazing experience with TwinTech Heating & Cooling! Their team was professional, knowledgeable, and efficient from start to finish. They installed my new furnace quickly and left everything spotless. The technicians took the time to explain everything and made sure I was comfortable with the system before they left. Great customer service and fair pricing. I highly recommend them for anyone needing HVAC services!
Feb 18, 2025
Great experience all around. Bob was sharp and easy to talk to, and Greg handled the installation perfectly. Would hire them again in a heartbeat.
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