Durham Region Air Conditioning Repair, Service and Installation
If you're looking for help fixing your napoleon air conditioner, look no further! Our comprehensive napoleon air conditioner repair guide will explain common issues, provide troubleshooting tips, and show you how to read your model's error codes.
PROBLEM: Unit will not operate,
RESULT: Power disconnected or loose connection.
FIX: Check power supply to unit. Check voltage at contactor.
RESULT: Power disconnected or loose connection.
FIX: Check power supply to unit. Check voltage at contactor.
PROBLEM: Unit will not operate,
RESULT: Blown fuse / breaker tripped.
FIX: Replace fuses/reset breaker.
RESULT: Blown fuse / breaker tripped.
FIX: Replace fuses/reset breaker.
PROBLEM: Unit will not operate,
RESULT: Thermostat out of calibration is set too high.
FIX: Reset.
RESULT: Thermostat out of calibration is set too high.
FIX: Reset.
PROBLEM: Unit will not operate,
RESULT: Contactor defective.
FIX: Check for 24VAC at contactor coil - replace if open.
RESULT: Contactor defective.
FIX: Check for 24VAC at contactor coil - replace if open.
PROBLEM: Unit will not operate,
RESULT: Transformer defective.
FIX: Check wiring - replace transformer.
RESULT: Transformer defective.
FIX: Check wiring - replace transformer.
PROBLEM: Unit will not operate,
RESULT: High pressure control open (if provided).
FIX: Reset - see high pressure connection.
RESULT: High pressure control open (if provided).
FIX: Reset - see high pressure connection.
PROBLEM: Outdoor fan on; Compressor off.
RESULT: Run or start capacitor defective.
FIX: Replace.
RESULT: Run or start capacitor defective.
FIX: Replace.
PROBLEM: Outdoor fan on; Compressor off.
RESULT: Start relay defective.
FIX: Replace.
RESULT: Start relay defective.
FIX: Replace.
PROBLEM: Outdoor fan on; Compressor off.
RESULT: Loose wire.
FIX: Check for correct voltage at compressor - check and tighten all connections.
RESULT: Loose wire.
FIX: Check for correct voltage at compressor - check and tighten all connections.
PROBLEM: Outdoor fan on; Compressor off.
RESULT: Compressor stuck, grounded or open motor winding, open internal overload.
FIX: Wait at least 2 hours for overload to reset; if still open, replace the compressor.
RESULT: Compressor stuck, grounded or open motor winding, open internal overload.
FIX: Wait at least 2 hours for overload to reset; if still open, replace the compressor.
PROBLEM: Too little cooling.
RESULT: Low voltage condition.
FIX: Add start kit components.
RESULT: Low voltage condition.
FIX: Add start kit components.
PROBLEM: Too little cooling.
RESULT: Improperly sized unit.
FIX: Recalculate load.
RESULT: Improperly sized unit.
FIX: Recalculate load.
PROBLEM: Too little cooling.
RESULT: Improper indoor airflow.
FIX: Check-should be approximately 400 CFM per ton.
RESULT: Improper indoor airflow.
FIX: Check-should be approximately 400 CFM per ton.
PROBLEM: Too little cooling.
RESULT: Incorrect refrigerant charge.
FIX: Charge per procedure in installation manual.
RESULT: Incorrect refrigerant charge.
FIX: Charge per procedure in installation manual.
PROBLEM: Too little cooling.
RESULT: Air, non-condensables or moisture in system.
FIX: Recover refrigerant.
RESULT: Air, non-condensables or moisture in system.
FIX: Recover refrigerant.
PROBLEM: Compressor operates in short cycles.
RESULT: Incorrect voltage.
FIX: At compressor terminals, voltage must be +/10% of nameplate marking when unit is operating.
RESULT: Incorrect voltage.
FIX: At compressor terminals, voltage must be +/10% of nameplate marking when unit is operating.
PROBLEM: Compressor operates in short cycles.
RESULT: Defective overload protector.
FIX: Replace - check for correct voltage.
RESULT: Defective overload protector.
FIX: Replace - check for correct voltage.
PROBLEM: Compressor operates in short cycles.
RESULT: Refrigerant undercharge.
FIX: Add refrigerant.
RESULT: Refrigerant undercharge.
FIX: Add refrigerant.
PROBLEM: High head pressure; Low suction pressure.
RESULT: Restriction in liquid line, expansion device or filter drier.
FIX: Remove or replace defective component.
RESULT: Restriction in liquid line, expansion device or filter drier.
FIX: Remove or replace defective component.
PROBLEM: High head pressure; Low suction pressure.
RESULT: Lack of sufficient indoor airflow.
FIX: Clean/check filters, registers, or evaporator coil that may cause a restriction.
RESULT: Lack of sufficient indoor airflow.
FIX: Clean/check filters, registers, or evaporator coil that may cause a restriction.
PROBLEM: High head pressure; Normal suction pressure.
RESULT: Dirty outdoor coil.
FIX: Clean coil.
RESULT: Dirty outdoor coil.
FIX: Clean coil.
PROBLEM: High head pressure; Normal suction pressure.
RESULT: Refrigerant overcharge.
FIX: Correct system charge.
RESULT: Refrigerant overcharge.
FIX: Correct system charge.
PROBLEM: High head pressure; Normal suction pressure.
RESULT: Outdoor fan not running.
FIX: Repair or replace.
RESULT: Outdoor fan not running.
FIX: Repair or replace.
PROBLEM: High head pressure; Normal suction pressure.
RESULT: Air or non-condensables in system.
FIX: Recover refrigerant, evacuate and recharge.
RESULT: Air or non-condensables in system.
FIX: Recover refrigerant, evacuate and recharge.
PROBLEM: Low head pressure; High suction pressure.
RESULT: Expansion device stuck in open position.
FIX: Replace expansion device.
RESULT: Expansion device stuck in open position.
FIX: Replace expansion device.
PROBLEM: Low head pressure; High suction pressure.
RESULT: Defective compressor valves.
FIX: Replace compressor.
RESULT: Defective compressor valves.
FIX: Replace compressor.
PROBLEM: Low suction pressure; Compressor cool. Ice on indoor coil.
RESULT: Low indoor airflow.
FIX: Increase speed of blower or reduce restriction - replace air filter.
RESULT: Low indoor airflow.
FIX: Increase speed of blower or reduce restriction - replace air filter.
PROBLEM: Low suction pressure; Compressor cool. Ice on indoor coil.
RESULT: Operating below 65F (18C) outdoors.
FIX: Add low ambient kit.
RESULT: Operating below 65F (18C) outdoors.
FIX: Add low ambient kit.
PROBLEM: Low suction pressure; Compressor cool. Ice on indoor coil.
RESULT: Moisture in system.
FIX: Recover refrigerant - evacuate and recharge - replace filter drier.
RESULT: Moisture in system.
FIX: Recover refrigerant - evacuate and recharge - replace filter drier.
PROBLEM: High suction pressure; or fluctuating head and suction pressures.
RESULT: Excessive load.
FIX: Recheck load calculation.
RESULT: Excessive load.
FIX: Recheck load calculation.
PROBLEM: High suction pressure; or fluctuating head and suction pressures.
RESULT: Defective compressor.
FIX: Replace.
RESULT: Defective compressor.
FIX: Replace.
PROBLEM: High suction pressure; or fluctuating head and suction pressures.
RESULT: TXV hunting.
FIX: Check TXV bulb clamp - check air distribution on coil - replace TXV.
RESULT: TXV hunting.
FIX: Check TXV bulb clamp - check air distribution on coil - replace TXV.
PROBLEM: High suction pressure; or fluctuating head and suction pressures.
RESULT: Air or non-condensables in system.
FIX: Recover refrigerant, evacuate and recharge.
RESULT: Air or non-condensables in system.
FIX: Recover refrigerant, evacuate and recharge.
PROBLEM: Pulsing noise at expansion device or liquid line.
RESULT: Air or non-condensables in system.
FIX: Recover refrigerant, evacuate and recharge.
RESULT: Air or non-condensables in system.
FIX: Recover refrigerant, evacuate and recharge.
PROBLEM: Registers sweat.
RESULT: Low indoor airflow.
FIX: Increase speed of blower or reduce restriction - replace air filter.
RESULT: Low indoor airflow.
FIX: Increase speed of blower or reduce restriction - replace air filter.
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
We were new homeowners in need of a second opinion. TwinTech Heating & Cooling were Amazing and professional. Very knowledgeable and great service all around. Recommend to anyone looking for honest and reliable services. Treated with respect and care. Thank you Greg, Mitch and Bob!
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.
Aug 17, 2024
I returned from vacation to find my AC unit on the Fritz. After calling way too many places I connected with TwinTech. Ive used the company in the past for my furnace so I was happy when I recognized Greg at my front door. Hes great and the service is always top notch. Id highly recommend using twintech for honest, superior service in the Durham region. Thanks!
Aug 13, 2024
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!!
Aug 12, 2024
Just hired TwinTech Heating & Cooling to do an A/C Unit removal & reinstall to allow for landscaping access on the side of my house, and they were wonderful!
Bob, Greg & Mitch make a great team! Quick appointment times, super knowledgeable, expert troubleshooting capabilities & very customer service oriented.
I would highly recommend them for all of your HVAC needs! Great job guys!!
Jul 23, 2024
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!
Jul 18, 2024
Just had a new furnace installed by Twintech. I cant 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 !!!
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
We were new homeowners in need of a second opinion. TwinTech Heating & Cooling were Amazing and professional. Very knowledgeable and great service all around. Recommend to anyone looking for honest and reliable services. Treated with respect and care. Thank you Greg, Mitch and Bob!
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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