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Durham Region Air Conditioning Repair, Service and Installation

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Standard and Remote Applications with LED M70 Control Board and R-410A.


Amana PTAC Air Conditioner Error Codes

CODE: FP.
RESULT: Freeze Protection Engaged. The room temperature measured by the wireless remote thermostat or indoor ambient thermistor active sensor falls below 40°F.
FIX: No Action required. This setting will disengage when the room temperature rises above 43°F.

CODE: Fd.
RESULT: Front Desk switch is closed. All outputs are switched off.
FIX: Open front desk switch to allow occupant unit operation.

CODE: Eo.
RESULT: Un-Configured Service Board - All operation held awaiting configuration.
FIX: Enter Configuration Menu and set "C3" to "C" for coolers with electric heat or "H" for heat pumps.

CODE: EH.
RESULT: Emergency Hydronic Engaged. The EHH switch is closed. Compressor is switched off.
FIX: Open front emergency hydronic switch to allow occupant unit operation.

CODE: LS.
RESULT: Load Shedding Engaged. The LS switch is closed. Compressor and Electric heat is switched off.
FIX: Open load shedding switch to allow occupant unit operation.

CODE: On.
RESULT: Control is configured to respond to a wired thermostat.
FIX: No action if a wired thermostat is being used.Otherwise, see Configuration Settings.

CODE: oP.
RESULT: Open Door Lockout (DS1 & DS2 open; wireless).
FIX: Close Room Door. Unit will not condition space with door open.

CODE: nP.
RESULT: Window Switch Lockout - (LS & INN open).
FIX: Close Room Door or Window. Unit will not condition space with door or window open.

CODE: HP.
RESULT: Heat Sentinel - (WIAT > u3).
FIX: No action required. This setting will disengage when the room temperature falls.

CODE: Ur.
RESULT: Un-Rented Status (EHH & INN or wireless).
FIX: Front Desk needs to set to Rented mode (if applicable).

CODE: F1.
RESULT: Indoor Ambient Thermistor reads outside the range -20°F to 200°F & the wireless thermostat is not communicating to the unit control or Indoor Ambient Thermistor (IAT) without a wireless remote thermostat reads outside the range -20°F to 200°F.
FIX: Replace black Indoor Ambient Thermistor or Wireless Remote Thermostat.

CODE: F2.
RESULT: Wireless Remote Thermostat failure.
FIX: Replace Wireless Thermostat.

CODE: F3.
RESULT: Indoor Ambient Thermistor reads outside the range -20°F to 200°F.
FIX: Replace black Indoor Ambient Thermistor.

CODE: F4.
RESULT: Indoor Coil Thermistor either above or below operating tolerances.
FIX: Replace Red Indoor Coil Thermistor.

CODE: F5.
RESULT: Wireless Thermostat failure.
FIX: Attempt to rebind Wireless Thermostat or Replace Wireless Thermostat.

CODE: F6.
RESULT: Indoor Discharge Thermistor either above or below operating tolerances.
FIX: Replace Yellow Indoor Discharge Thermistor.

CODE: Fb.
RESULT: Low Remote Battery Warning.
FIX: Replace Batteries in Wireless Devices.

CODE: H1.
RESULT: High Voltage Protection engaged. Power supply voltage is to high.
FIX: Check for incoming power at correct voltage.

CODE: br.
RESULT: Brown Out Protection engaged. Power was lost or voltage is low.
FIX: Check for incoming power at correct voltage.

CODE: L6.
RESULT: Discharge Air Too Hot.
FIX: Clean Filter or Remove Air Blockage.

CODE: LC.
RESULT: Outdoor Coil Thermistor temperature high.
FIX: Clean Condenser Coils, Check Fan for fault. Code will reset after cleaning.

CODE: C2.
RESULT: Indoor Air Recirculation. Large delta between thermostat and return.
FIX: Clean Filter or Remove Air Blockage or Close Vent Door or Improve indoor to outdoor seal.

CODE: C5.
RESULT: Outdoor Coil temperature too high for outdoor ambient temperature.
FIX: Check for Blocked Outdoor Air or Clean Coil.

CODE: C1.
RESULT: Indoor Coil is freezing up.
FIX: Clean filter, Check for fan and blower operation, Check for Refrigerant loss or Restricted capillary tube.

CODE: C3.
RESULT: Indoor Coil is freezing up.
FIX: Clean filter, Check for fan and blower operation, Check for Refrigerant loss or Restricted capillary tube.

CODE: C4.
RESULT: Indoor Coil froze up.
FIX: Clean filter, Check for fan and blower operation, Check for Refrigerant loss or Restricted capillary tube.

CODE: C6.
RESULT: Poor Unit Performance.
FIX: Check for blower motor, compressor, or electric heat operation.

CODE: C7.
RESULT: Indoor Freezing Lockout (ICT - IAT > 20) +10 Min.
FIX: Clean filter, Check for fan and blower operation, Check for Refrigerant loss or Restricted capillary tube.


See What Our Customers Are Saying:

by stan.marosek from Ajax on Twintech Heating and Cooling

Class Act ! These guys were professional right from the quote stage through to installation. They know their stuff and took their time to help educate me. They take pride in their work and it shows. I would recommend TwinTech Heating and Cooling to anyone. Keep up the great work !!!

by W. Lacombe in Pickering on Twintech Heating and Cooling

This Company is terrific. No high pressure sales and they deliver exactly what they promise to deliver. The new furnace is great and we now get consistent temperatures throughout the house. The installers were great and very efficient and completed the work on schedule on the promised day. Everyone representing this company was very aware of their presence in our house and worked diligently to keep our home as uninterrupted and as clean as was humanly possible. We did not need to go around the house to clean up after they left, what a nice surprise. We have had follow up by the company to ensure everything is to our satisfaction. How unusual in today's environment. The impression left by Twintech is that they care about us and our home. This is so refreshing in today's high tech world. Out thanks go out to Dave in sales and G, G, and P (the installers).

by jiinyiong in Ajax on Twintech Heating and Cooling

They were Timely and professional. They were very Knowledgeable with answering all of my questions.

by Connie in Pickering on Twintech Heating and Cooling

The entire process was prompt and professional, from the initial quote to the installation of the new furnace. The team installed the new furnace and removed the old one in approx. 4 hrs. The guys were very knowledgeable and gave me lots of information. I have used Twintech before for a new A/C installation and new I was in good hands.

by Valentine in Pickering on Twintech Heating and Cooling

The overall experience dealing with this company was great from start to finish when getting a new furnace and ac this year. Everything was clearly explained to us during our consultation with Dave and there were no surprises with added costs. The work was done as expected and their response time to inquiries were very timely generally within a few hours or less. They are all very professional and was a pleasure to do business with them. Highly recommend to anyone looking for honest quality professional service.

by Jiri in Toronto on Twintech Heating and Cooling

From the initial contact we had an excellent experience with this company and all its personnel. Dave Gergley was an excellent, helpful, sales person and solicitous of our needs. He recommended only what was required and did not up sell or make any suggestions for products that we did not need, such as a new A.C. He explained the rebate process and basically outlined how to get the best furnace at the lowest price. When it was time for installation, the technicians could not have been more considerate, careful, attentive to detail, obviously committed to safety and optimum functioning of the appliance they were setting up. We have been perfectly satisfied with the functioning of the furnace and all aspects of acquiring it from the initial contact with Dave through to the installation process and follow ups inquiring about our satisfaction. Also they initiated the rebate process and contacted the appropriate inspection agency to carry it out. We highly recommend this company for all heating and cooling needs and we will contact them again when it is time to replace our A.C.

by Drew in Pickering on Twintech Heating and Cooling

Twintech was excellent from the initial quote and throughout the install. They had a competitive rate for hot water tank and ended up buying the tank from them, had them remove the old tank and install the new one. The day of install they were prompt and out in about 2 hours. Professional , courteous really great guys. We took a look at my 30 year old furnace and they were able to offer some suggestions for future there too.

by Harry in Toronto on Twintech Heating and Cooling

Ever since I turned on my furnace on Oct 2018 I hear a humming sound when the furnace fan kicks in. I called Adamson Air System who installed my furnace 7 years ago and couldn't figure it out the problem. I just wasted money to the guy who couldn't figure it out. I found Twin Tech via Amana / Goodman website. I checked the reviews from previous Twin Tech customers. I called Greg and was onsite on time this morning Sunday, Nov 25 2018. He figured it out what's wrong with the furnace and explained what the previous installer (adamson air system) did wrong when they installed it. His knowledgeable about his job. He recommend to replace the fun motor because the sound is not normal when it's running. Looking forward to see him again to replace the fan motor.

by Roger in Pickering on Twintech Heating and Cooling

Our house is over 22 years old and I had been researching furnaces and A/C brands for a while and thought it was time to take the plunge. After calling three different companies to come in and quote the job, this one won me over. From the first visit from Dave all the way to the end of the install by Greg, Grant, and Piotr, I was glad to have picked this company. Dave was very knowledgeable and really took the time to explain what kind of quality installation I was going to get as well as showing me some of their previous work and certificates.

I was also surprised at how quick the installation took and how nice everything looked afterward, I mean it's only a furnace right? They even re positioned the furnace so that I have easier access to my filter and humidistat, awesome! If you are looking for a company that cares about their customers and is proud about the quality of work they do, along with a great and competitive price, then stop right here because you found it.

by Louis in Pickering on Twintech Heating and Cooling

Once our AC Unit started to fail, I called our past Heating & Cooling provider for support. The response was we needed a new motor for our Furnace. It was time to check their Quote against the marketplace, I reached to other providers online. One of the owner of Twintech (Greg), called me and offered a preliminary Quote and recommendation online. The others needed to set an appointment and came to measure and spend 1 hour before offering a quote. Then I asked Twintech to come finalize their quote to make sure their recommendation was aligned and met our needs.

Twintech was professional throughout the process, easy to deal with (Web, Phone and in Person), price right and met their commitment. Their team expedited the process and installation, arranged for a energy assessment for available rebates and most importantly, delivered on their commitment and managed to do a few extras. They installed a New Furnace, AC unit and Nest thermostat in a day, remove all older units, left the house and outdoors clean and without any debris. Great to be able to support a Local Company, Neighbour and Professional team - Well Done Team Twintech !!!