Durham Region Air Conditioning Repair, Service and Installation
The flashing LEDs on your A/C will correspond to a specific fault code that is shown here.
Comfort Alert Diagnosis Chart Single Phase Unit.
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: Compressor internal overload is open. Broken wire or connector is not making contact. Low pressure switch open, if present. Compressor contactor has failed open.
RESULT: Thermostat demand signal Y1 is present, but the compressor is not running.
FIX: Compressor internal overload is open. Broken wire or connector is not making contact. Low pressure switch open, if present. Compressor contactor has failed open.
CODE: Yellow "ALERT" Flash Code 1.
RESULT: Long Run Time Compressor is running extremely long run cycles.
FIX: Low refrigerant charge. Evaporator blower is not running. Evaporator coil is frozen. Faulty TXV. Condenser coil is dirty. Liquid line restriction (filter drier blocked if present in system). Thermostat is malfunctioning.
RESULT: Long Run Time Compressor is running extremely long run cycles.
FIX: Low refrigerant charge. Evaporator blower is not running. Evaporator coil is frozen. Faulty TXV. Condenser coil is dirty. Liquid line restriction (filter drier blocked if present in system). Thermostat is malfunctioning.
CODE: Yellow "ALERT" Flash Code 2.
RESULT: System Pressure Trip Discharge or suction pressure out of limits or compressor overloaded.
FIX: Condenser coil poor air circulation (dirty, blocked, damaged). Condenser fan is not running. Return air duct has substantial leakage. If low pressure switch is present, check flash code (1) information.
RESULT: System Pressure Trip Discharge or suction pressure out of limits or compressor overloaded.
FIX: Condenser coil poor air circulation (dirty, blocked, damaged). Condenser fan is not running. Return air duct has substantial leakage. If low pressure switch is present, check flash code (1) information.
CODE: Yellow "ALERT" Flash Code 3.
RESULT: Short Cycling Compressor is running only briefly.
FIX: High head pressure. Thermostat demand signal is intermittent. Time delay relay defective, if present. Hot gas sensor defective, if present.
RESULT: Short Cycling Compressor is running only briefly.
FIX: High head pressure. Thermostat demand signal is intermittent. Time delay relay defective, if present. Hot gas sensor defective, if present.
CODE: Yellow "ALERT" Flash Code 4.
RESULT: Locked Rotor.
FIX: Run capacitor has failed. Low line voltage (contact utility if voltage at disconnect is low). Excessive liquid refrigerant in compressor. Compressor bearings are seized.
RESULT: Locked Rotor.
FIX: Run capacitor has failed. Low line voltage (contact utility if voltage at disconnect is low). Excessive liquid refrigerant in compressor. Compressor bearings are seized.
CODE: Yellow "ALERT" Flash Code 5.
RESULT: Open Circuit.
FIX: Compressor contactor has failed open. High pressure switch is open, If present. Open circuit in compressor supply wiring or connections. Unusually long compressor protector reset time due to extreme ambient temperature. Compressor windings are damaged.
RESULT: Open Circuit.
FIX: Compressor contactor has failed open. High pressure switch is open, If present. Open circuit in compressor supply wiring or connections. Unusually long compressor protector reset time due to extreme ambient temperature. Compressor windings are damaged.
CODE: Yellow "ALERT" Flash Code 6.
RESULT: Open Start Circuit Current only in run circuit.
FIX: Run capacitor has failed. Open circuit in compressor start wiring or connections. Compressor start winding is damaged.
RESULT: Open Start Circuit Current only in run circuit.
FIX: Run capacitor has failed. Open circuit in compressor start wiring or connections. Compressor start winding is damaged.
CODE: Yellow "ALERT" Flash Code 7.
RESULT: Open Run Circuit Current only in start circuit.
FIX: Open circuit in compressor run wiring or connections. Compressor run winding is damaged.
RESULT: Open Run Circuit Current only in start circuit.
FIX: Open circuit in compressor run wiring or connections. Compressor run winding is damaged.
CODE: Yellow "ALERT" Flash Code 8.
RESULT: Welded Contactor Compressor always runs.
FIX: Compressor contactor has failed closed. Thermostat demand signal not connected to module.
RESULT: Welded Contactor Compressor always runs.
FIX: Compressor contactor has failed closed. Thermostat demand signal not connected to module.
CODE: Yellow "ALERT" Flash Code 9.
RESULT: Low Voltage Control circuit < 17VAC.
FIX: Control circuit transformer is overloaded. Low line voltage (contact utility if voltage at disconnect is low).
RESULT: Low Voltage Control circuit < 17VAC.
FIX: Control circuit transformer is overloaded. Low line voltage (contact utility if voltage at disconnect is low).
See What Our Customers Are Saying:
Feb 1, 2021
I received three quotes before deciding to choose Twintech. Dave's prices was much more reasonable than the competitors. I most appreciated their honest recommendations. Others tried to oversell their products and services. Thank you Dave!
Feb 1, 2021
They had the best price and did a great job on the installation. Recommend them to anyone.
Feb 1, 2021
It was a amazing and professional high quality job
Friendly and very helpful representatives
Thank you for understanding my concern
And explain very well
Overall we pleased with your service
Tanks
May 15, 2020
My 19 year old furnace stopped working when the cold weather hit in November, and I was left without heat. I interviewed several companies and found TWINTECH HEATING and COOLING to be very knowledgeable, quick to respond to my inquiries and very competitively priced.
Dave provided all of the information and pricing ahead of time and set up the appointment for the installation. Greg and Mitch arrived on time to do the installation and worked quickly and efficiently to complete the job.
After the completion of the installation, Dave followed up to ensure that everything was working well and that I didn't have any concerns.
Overall, this was a low-stress and flawless experience from start to finish. I would highly recommend TWINTECH HEATING and COOLING to anyone that requires a new furnace.
May 14, 2020
Our 20 year old furnace broke down during the first cold weekend this past November and our usual HVAC company never returned our phone call. Their loss, missing out on a sale since we didn't want to spend much fixing an old furnace and our 40 year old air conditioner was also long overdue for replacement. We proceeded in obtaining three different quotes for furnace and air conditioner replacement, and proceeded with the one we received from Twintech.
Dave was friendly, knowledgable and accommodating to our schedule and provided with us with a price that fell in the middle of the three quotes that we had. We felt that the Amana furnace and air conditioner he quoted us on were the best products and value offered to us and felt most comfortable with the professionalism and reputation of Twintech.
Greg, Grant and Mitch were at our house for installation the day after we decided to proceed. The guys were friendly and informative, the job was completed efficiently and workmanship appears excellent. Our house is certainly much more comfortable with the new two-stage variable speed Amana furnace compared to the old clunker! And, we're looking forward to enjoying the new air conditioner once summer rolls around again. Thanks Twintech!
May 13, 2020
We are very happy with our new furnace. The service was excellent the guys worked 6 hours straight through and there was no mess at all they took the old furnace boxs etc with them they then explained everything to us they were very helpful and pleasant , when we need a new air conditioner we know who to call!
May 12, 2020
The crew from sales to installation was very professional and had great attention to detail
May 11, 2020
We couldnt have been more impressed with Twintech - from our first service call with Mitch who took the time to thoroughly diagnose the issue with our furnace, to Dave who proposed a well thought out solution to meet our needs and finally Greg and team who acted quickly to install given we had no heat.
We did our due diligence by soliciting quotes from alternate providers and were shocked and disappointed by the aggressive and manipulative tactics used.
Twintech was honest in their approach, detailed in their product knowledge, reasonably priced, diligent in their follow-up and valued our business.
Well done Twintech! You made this a positive experience for us and our new furnace works beautifully!
May 10, 2020
We recently purchased an Amana high efficiency furnace and humdifier through Twintech. The work was completed very professionally and the quality of the workmanship was high. There was some additional sheet metal work required to complete the installation, which they were able to complete themselves. Overall I am very pleased with the work and would highly recommend Twintech for a furnace replacement.
May 9, 2020
We were very pleased with every aspect of the work that was done. They were very professional and polite. They arrived when they said they would and job was completed on estimated time
We would highly recommend them to whoever needed a recommendation
We have a very large dog and they were very understanding and respectful of him being around