$49 / month O.A.C Including Install
$49 / month O.A.C Including Install

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Durham Region Air Conditioning Repair, Service and Installation

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If you're looking for help fixing your Heil Air Conditioner, look no further! Our comprehensive Heil Air Conditioner repair guide will explain common issues, provide troubleshooting tips, and show you how to read your model's error codes..


R-410A Split System Heat Pump.

CODE: Green "POWER".
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.

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.

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.

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.

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.

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.

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.

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.

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.

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).


See What Our Customers Are Saying:

by Private User from Private User on Twintech Heating and Cooling

I have used Twintech many times over the years. They always arrive quickly and get the issue fixed. The most recent incident was when my air conditioner broke last week I called Greg at 11:30am and he was at my home by 2:30pm he had the unit fixed by 3:30pm. Twintech are very reliable and honest and they are experts in the field. I have already recommended them to many of my friends. I would not use anyone but them for my heating and air conditioning issues.

by Kate A in Pickering on Twintech Heating and Cooling

I would highly recommend these guys, professional, fast and competitive pricing. I moved into this place with no working AC unit with a 8 month baby, he was able to come with in a week to fix even in the busy summer days. He really values his customers , I am already recommending to my neighbors.

by Private User in Whitby on Twintech Heating and Cooling

Very impressed they arrive to quote even though I had forgotten to call them back to confirm date & time. They showed the day before installation to deliver the unit. Returned the next day as promised at 9am. Project was completed in a professional manner. They even fixed a few things that they noticed were not installed correctly, or to code by previous heating & air contractors we had at our residence before. Would recommend this company to everyone!

by Private User from Bowmanville on Twintech Heating and Cooling

Greg removed old oil furnace and oil tank from basement relocated new Napoleon propane furnace to allow duct work to be rerouted to a much more suitable location. Moved air conditioner to the new furnace. Dave recommended two available grants to assist with cost. They kept to their original quoted price which was substantially lower than a competitors for the same furnace and work. They completed the work as stated when stated and left the area clean and tidy. We are very pleased with the outcome.

by astephenson in Oshawa on Twintech Heating and Cooling

Twintech installed a Goodman furnace and ac init. Very professional install, both units are working well.

by rcnichols electric in Whitby on Twintech Heating and Cooling

We had Grant and Greg Dainty quote to replace our 20 yr old furnace. I have known them for years and have had other jobs done by them ( AC and Pool Htr). The price was very reasonable and the job was completed in one day.

by Rick. F. in Pickering on Twintech Heating and Cooling

TwinTech was the right choice. Our consultation with Dave set the tone. Professional and knowledgeable, we even received a follow-up call within hours of our install completion, wow! TwinTech arrived as scheduled to install our A/C unit. Within minutes of arrival Greg noted and explained a few out of code faults on our furnace installed by another company, problems fixed, thanks TwinTech. Greg, Grant and "Subaru" Pete were meticulous start to finish. Highly recommended!

by Taresh, Pickering on Twintech Heating and Cooling

Twintech replaced our aging +20 yrs old Furnace & AC with the variable high efficiency Napoleon Furnace matched with the Goodman AC. Sales guy ,Dave was great, gave a no pressure estimate, explained about the Government Rebate program which they took care of completely including arranging the home energy audit. On the scheduled day Greg and his team arrived on time, did a great job and completed the same day , extremely professional and courteous, cleaned up everything , tested the system, Greg took his time to explain the setup. Very impressed with the Napoleon Furnace 9600 which did a great job in maintaining a comfortable temperature last winter and now with the hot weather the Goodman AC cooled the house in much less time than the old AC unit could ever. From start to finish Twintech were great and have no hesitation in recommending them 100%.

by Private User Pickering, ON on Twintech Heating and Cooling

The Twintech team did an excellent job installing our new Goodman air conditioner. They were polite and professional. Greg was knowledgeable and clearly experienced. Thank you Twintech for bringing our cooling system up to current regulations. Job well done!

by Y. M. from Pickering on Twintech Heating and Cooling

Dave from TwinTech was very knowledgeable, professional and thorough in the buying process. He helped us to identify the best furnace for our home and our budget. When we needed a new filter a year later and seemed to have a problem finding the right one, I called Dave up and he delivered a filter to me the next day! The cost was on par with other retailers, but it was this unexpected personal service that really was impressive. The furnace? Works like a charm.

See What Our Customers Are Saying:

by Aaron on Twintech Heating and Cooling

We are very happy to recommend this company to everyone. Our furnace broke down on Sunday morning. We phoned them and before noon Grant the owner showed up. He worked on the furnace for about a hour not wanting to give up to fix the problem. The furnace was 17 years old. I was the one talking about replacing it. End result was the next day it was all done. On the Sunday Bob came over with heaters to warm up the house. We decided to replace the water heater at the same time. Thanks Grant for the excellent work. Thumbs up.

by Linda on Twintech Heating and Cooling

Right on time. Explained how to work the HRV in a different way so the house would not be so dry. Changed my whole house water filter for me as well. Friendly, helpful, caring service!

by Robert Rogers on Twintech Heating and Cooling

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.

by Robert Mizuno on Twintech Heating and Cooling

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!

by Ruth on Twintech Heating and Cooling

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!

The Furnace in Winter: A Simple Homeowner's Guide

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - October 26, 2024

As the cold season arrives, keeping your home warm is essential, and your furnace is at the heart of it all. Here's a straightforward guide to help you ensure your furnace runs smoothly all winter long: 1. Understand How Your Furnace Works

Read More

Is My Heat Pump Malfunctioning?

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - January 25, 2024

I can certainly help you troubleshoot common issues that may indicate a malfunction. Here are a few steps you can take to assess the situation: Check the Thermostat: Ensure that the thermostat is set to the appropriate temperature and mode (

Read More

Increasing the Longevity of Your Heat Pump

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - October 30, 2023

Increasing the longevity of your heat pump involves regular maintenance and adopting good practices to ensure optimal performance. Here are some tips to help extend the lifespan of your heat pump: Regular Maintenance: Clean or Replac

Read More

Can I Upgrade My Furnace Unit?

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - November 3, 2023

Yes, it is often possible to upgrade a furnace unit to improve its performance, energy efficiency, and features. Here are some common upgrades that you might consider: High-Efficiency Furnace: Upgrading to a high-efficiency furnace can signi

Read More