Durham Region Air Conditioning Repair, Service and Installation
If you're looking for help fixing your Ducane Air Conditioner, look no further! Our comprehensive Ducane Air Conditioner repair guide will explain common issues, provide troubleshooting tips, and show you how to read your model's error codes.
CODE: POWER (Green).
RESULT: Module has power
FIX: Supply voltage is present at module terminals.
RESULT: Module has power
FIX: Supply voltage is present at module terminals.
CODE: TRIP (Red).
RESULT: Thermostat demand signal Y1 is present, but the compressor is not running
FIX: 1. Compressor protector is open - Check for high head pressure - Check compressor supply voltage 2. Outdoor unit power disconnect is open 3. Compressor circuit breaker or fuse(s) is open 4. Broken wire or connector is not making contact 5. Low pressure switch open if present in system 6. Compressor contactor has failed open.
RESULT: Thermostat demand signal Y1 is present, but the compressor is not running
FIX: 1. Compressor protector is open - Check for high head pressure - Check compressor supply voltage 2. Outdoor unit power disconnect is open 3. Compressor circuit breaker or fuse(s) is open 4. Broken wire or connector is not making contact 5. Low pressure switch open if present in system 6. Compressor contactor has failed open.
CODE: ALERT (Yellow) Flash Code 1.
RESULT: Long Run Time Compressor is running extremely long run cycles
FIX: n/a.
RESULT: Long Run Time Compressor is running extremely long run cycles
FIX: n/a.
CODE: ALERT (Yellow) Flash Code 2.
RESULT: System Pressure Trip Discharge or suction pressure out of limits or compressor overloaded
FIX: 1. High head pressure - Check high pressure switch if present in system - Check if system is overcharged with refrigerant - Check for non-condensable in system 2. Condenser coil poor air circulation (dirty, blocked, damaged) 3. Condenser fan is not running - Check fan capacitor - Check fan wiring and connectors - Check fan motor for failure or blockage 4. Return air duct has substantial leakage 5. If low pressure switch present in system, check Flash Code 1 information.
RESULT: System Pressure Trip Discharge or suction pressure out of limits or compressor overloaded
FIX: 1. High head pressure - Check high pressure switch if present in system - Check if system is overcharged with refrigerant - Check for non-condensable in system 2. Condenser coil poor air circulation (dirty, blocked, damaged) 3. Condenser fan is not running - Check fan capacitor - Check fan wiring and connectors - Check fan motor for failure or blockage 4. Return air duct has substantial leakage 5. If low pressure switch present in system, check Flash Code 1 information.
CODE: ALERT (Yellow) Flash Code 3.
RESULT: Short Cycling Compressor is running only briefly
FIX: 1. Thermostat demand signal is intermittent 2. Time delay relay or control board defective 3. If high pressure switch present, go to Flash Code 2 information 4. If low pressure switch present, go to Flash Code 1 information.
RESULT: Short Cycling Compressor is running only briefly
FIX: 1. Thermostat demand signal is intermittent 2. Time delay relay or control board defective 3. If high pressure switch present, go to Flash Code 2 information 4. If low pressure switch present, go to Flash Code 1 information.
CODE: ALERT (Yellow) Flash Code 4.
RESULT: Locked Rotor
FIX: 1. Run capacitor has failed 2. Low line voltage (contact utility if voltage at disconnect is low) - Check wiring connections 3. Excessive liquid refrigerant in compressor 4. Compressor bearing are seized 5. Measure compressor oil level.
RESULT: Locked Rotor
FIX: 1. Run capacitor has failed 2. Low line voltage (contact utility if voltage at disconnect is low) - Check wiring connections 3. Excessive liquid refrigerant in compressor 4. Compressor bearing are seized 5. Measure compressor oil level.
CODE: ALERT (Yellow) Flash Code 5.
RESULT: Open Circuit
FIX: 1. Outdoor unit power disconnect is open 2. Compressor circuit breaker or fuse(s) is open 3. Compressor contactor has failed open - Check compressor contactor wiring and connectors - Check for compressor contactor failure (burned, pitted, or open) - Check wiring and connectors between supply and compressor - Check for low pilot voltage at compressor contactor coil 4. High pressure switch is open and requires manual reset 5. Open circuit in compressor supply wiring or connections 6. Unusually long compressor protector reset time due to extreme ambient temperature 7. Compressor windings are damaged - Check compressor motor winding resistance.
RESULT: Open Circuit
FIX: 1. Outdoor unit power disconnect is open 2. Compressor circuit breaker or fuse(s) is open 3. Compressor contactor has failed open - Check compressor contactor wiring and connectors - Check for compressor contactor failure (burned, pitted, or open) - Check wiring and connectors between supply and compressor - Check for low pilot voltage at compressor contactor coil 4. High pressure switch is open and requires manual reset 5. Open circuit in compressor supply wiring or connections 6. Unusually long compressor protector reset time due to extreme ambient temperature 7. Compressor windings are damaged - Check compressor motor winding resistance.
CODE: ALERT (Yellow) Flash Code 6.
RESULT: Open Start Circuit. Current only in run circuit
FIX: 1. Run capacitor has failed 2. Open circuit in compressor start wiring or connections - Check wiring and connectors between supply and the compressor S terminal 3. Compressor start winding is damaged - Check compressor motor winding resistance.
RESULT: Open Start Circuit. Current only in run circuit
FIX: 1. Run capacitor has failed 2. Open circuit in compressor start wiring or connections - Check wiring and connectors between supply and the compressor S terminal 3. Compressor start winding is damaged - Check compressor motor winding resistance.
CODE: ALERT (Yellow) Flash Code 7.
RESULT: Open Run Circuit. Current only in start circuit.
FIX: 1. Open circuit in compressor run wiring or connections - Check wiring and connectors between supply and the compressor R terminal 2. Compressor run winding is damaged - Check compressor motor winding resistance.
RESULT: Open Run Circuit. Current only in start circuit.
FIX: 1. Open circuit in compressor run wiring or connections - Check wiring and connectors between supply and the compressor R terminal 2. Compressor run winding is damaged - Check compressor motor winding resistance.
CODE: ALERT (Yellow) Flash Code 8.
RESULT: Welded Contactor. Compressor always runs
FIX: 1. Compressor contactor has failed closed 2. Thermostat demand signal not connected to module.
RESULT: Welded Contactor. Compressor always runs
FIX: 1. Compressor contactor has failed closed 2. Thermostat demand signal not connected to module.
CODE: ALERT (Yellow) Flash Code 9.
RESULT: Low Voltage. Control circuit less than 17VAC
FIX: 1. Control circuit transformer is overloaded 2. Low line voltage (contact utility if voltage at disconnect is low) - Check wiring conditions.
RESULT: Low Voltage. Control circuit less than 17VAC
FIX: 1. Control circuit transformer is overloaded 2. Low line voltage (contact utility if voltage at disconnect is low) - Check wiring conditions.
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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
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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
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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
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