Durham Region Air Conditioning Repair, Service and Installation
If you're looking for help fixing your comfortmaker air conditioner, look no further! Our comprehensive comfortmaker air conditioner repair guide will explain common issues, provide troubleshooting tips, and show you how to read your model's error codes.
CODE: Green "POWER".
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: Red "TRIP".
RESULT: Thermostat demand signal. Y1 is present, but the compressor is not running.
FIX: 1. Compressor protector is open. 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. 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: Yellow "ALERT" Flash Code 1.
RESULT: Long Run Time. Compressor is running extremely long run cycles.
FIX: 1. Low refrigerant charge. 2. Evaporator blower is not running. 3. Evaporator coil is frozen. 4. Faulty metering device. 5. Condenser coil is dirty. 6. Liquid line restriction (filter drier blocked if present in system). 7. Thermostat is malfunctioning.
RESULT: Long Run Time. Compressor is running extremely long run cycles.
FIX: 1. Low refrigerant charge. 2. Evaporator blower is not running. 3. Evaporator coil is frozen. 4. Faulty metering device. 5. Condenser coil is dirty. 6. Liquid line restriction (filter drier blocked if present in system). 7. Thermostat is malfunctioning.
CODE: Yellow "ALERT" Flash Code 2.
RESULT: System Pressure Trip. Discharge or suction pressure out of limits or compressor overloaded.
FIX: 1. High head pressure. 2. Condenser coil poor air circulation (dirty, blocked, damaged). 3. Condenser fan is not running. 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. 2. Condenser coil poor air circulation (dirty, blocked, damaged). 3. Condenser fan is not running. 4. Return air duct has substantial leakage. 5. If low pressure switch present in system, check Flash Code 1 information.
CODE: Yellow "ALERT" 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: Yellow "ALERT" Flash Code 4.
RESULT: Locked Rotor.
FIX: 1. Run capacitor has failed. 2. Low line voltage (contact utility if voltage at disconnect is low). 3. Excessive liquid refrigerant in compressor. 4. Compressor bearings are seized.
RESULT: Locked Rotor.
FIX: 1. Run capacitor has failed. 2. Low line voltage (contact utility if voltage at disconnect is low). 3. Excessive liquid refrigerant in compressor. 4. Compressor bearings are seized.
CODE: Yellow "ALERT" 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. 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.
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. 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.
CODE: Yellow "ALERT" 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. 3. Compressor start winding is damaged.
RESULT: Open Start Circuit. Current only in run circuit.
FIX: 1. Run capacitor has failed. 2. Open circuit in compressor start wiring or connections. 3. Compressor start winding is damaged.
CODE: Yellow "ALERT" Flash Code 7.
RESULT: Open Run Circuit Current only in start circuit.
FIX: 1. Open circuit in compressor run wiring or connections. 2. Compressor run winding is damaged.
RESULT: Open Run Circuit Current only in start circuit.
FIX: 1. Open circuit in compressor run wiring or connections. 2. Compressor run winding is damaged.
CODE: Yellow "ALERT" 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: Yellow "ALERT" Flash Code 9.
RESULT: Low Voltage Control circuit < 17VAC.
FIX: 1. Control circuit transformer is overloaded. 2. Low line voltage (contact utility if voltage at disconnect is low).
RESULT: Low Voltage Control circuit < 17VAC.
FIX: 1. Control circuit transformer is overloaded. 2. Low line voltage (contact utility if voltage at disconnect is low).
See What Our Customers Are Saying:
Aug 14, 2022
I had them replace my furnace last year. When it came time for the air conditioner this year, I did not hesitate to call Twintech again. I will also have them perform regular maintenance on them.
Aug 13, 2022
We required a new HVAC replacement after running the old
system for 18 years.
Dave understood our requirements and gave us a quote that
covered all the necessary items.
Installation was fast and very tidy. Everything works as
it should. Our thanks to Greg, Mitch and others for their
excellent work. Recommend this family owned business to
anyone else, considering HVAC or other work.
Aug 12, 2022
I needed a new furnace and A/C to replace my 21 yr. old units, and went to the internet to view potential companies in May, I received 3 quotes,
and chose Twintech based on their salesman Dave who was very detailed and covered off everything on what Twintech was all about,
an extremely dedicated company with so many years of experience, and after reading the on line reviews I was sold on Twintech, who did not disappoint as the installation team were top notch with Greg leading,
I would highly recommend this company without any doubts, in my books they are first class all the way. Our new Amana furnace and A/C are working perfectly !
Aug 11, 2022
Flawless transaction. They did exactly what they promised, showed-up on time, cleaned-up, and were highly professional. Highly recommended.
Aug 10, 2022
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.
Aug 9, 2022
A dear late cousin of mine recommended this company and I have been happy with the service.
Aug 8, 2022
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.
Aug 7, 2022
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!
Aug 6, 2022
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)
Aug 5, 2022
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.
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.
Honeywell Thermostat Question
- SUBMITTED BY:
- TWINTECH HEATING & COOLING
- - September 23, 2023
Unfamiliar with hvac and would like to ask before doing anything. It's gettin late so can't call anyone. Have a standard Honeywell thermostat that typically does not use batteries to be powered. Noticed it was shut off this evening.
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