Our useful American Standard air conditioner repair guide will teach you about error codes, troubleshooting, common issues, replacing your air filter, and more.
Please note, the following is for informational purposes only. Any servicing you attempt is at your own risk.
Table of contents
American Standard, At a Glance
American Standard is one of the most recognized and trusted manufacturers of heating and cooling systems in North America, and they’ve been keeping Canadian homes comfortable since 1929. American Standard air conditioners are well-built, high-efficiency, and reliable, but it’s essential to maintain them properly if you want to get the most from your investment.
This guide will help you with that by explaining regular maintenance tasks like changing the air filter in your air conditioner, telling you about common cooling system problems and error codes, and explaining what problems require attention from a professional HVAC technician.
How to Replace Your American Standard Air Conditioner Air Filter
Replacing the air filter on your air conditioner is an important task that you should perform every one to three months during cooling seasons. The good news is you can do this yourself, and changing the filter is simple and straightforward. With a clean filter, your air conditioner will operate more efficiently, last longer, and keep your air quality high. Here’s easy to follow guide to help you through the process:
- Shut off power to the unit to prevent shocks and protect yourself from dust and allergens
- Locate the filter, which will be on the indoor unit or in the air return duct
- On an indoor unit, open the access panel
- Slide out the old filter
- Insert the new filter using the arrows as a guide
- Replace the access panel on an indoor unit
- Turn the unit back on
How to Replace Your American Standard Air Conditioner Air Filter
Replacing the air filter on your air conditioner is an important task that you should perform every one to three months during cooling seasons. The good news is you can do this yourself, and changing the filter is simple and straightforward. With a clean filter, your air conditioner will operate more efficiently, last longer, and keep your air quality high. Here’s easy to follow guide to help you through the process:
- Shut off power to the unit to prevent shocks and protect yourself from dust and allergens
- Locate the filter, which will be on the indoor unit or in the air return duct
- On an indoor unit, open the access panel
- Slide out the old filter
- Insert the new filter using the arrows as a guide
- Replace the access panel on an indoor unit
- Turn the unit back on
What’s Wrong With Your American Standard Air Conditioner?
Common Air Conditioner Problems and Troubleshooting
Remember to turn your A/C completely off before opening it up to look around or attempt any fix.
Not enough cooling output?
When your air conditioner can’t seem to keep your home cool enough, it could be because the unit isn’t the right size for your home, the refrigerant is too low or too high, there’s moisture in the system, or simply that the thermostat isn’t set to the right temperature for your comfort.
Leaks?
If there’s water leaking from the unit, then this often means there’s a clog in the drain line that’s allowing the drain pan to fill up and overflow. The water can damage the unit, so it’s important to have the drain line unclogged.
Compressor won’t work?
There are lots of things that can cause problems with the compressor, such as refrigerant levels, a defective capacitor or contractor, voltage problems, loose connections, and more.
Not working at all?
First, check that the unit is plugged in and getting power. Next, check the thermostat settings. If those weren’t the problems, it could be a defective control board, high or low-pressure issues, faulty wiring, and more.
Dirty filter?
You can tell your filter is dirty when there isn’t as much airflow as there should be, the unit starts to freeze, or you start to notice bad smells, like cooking odours or smoke, circulating through your home. Change the filter regularly to avoid these problems.
Refrigerant leaks?
Signs to look for include the unit blowing hot air, hissing noises, bubbling sounds, ice on the refrigerant line, and fluctuating temperatures.
Fan won’t run?
If the compressor works, but the fan isn’t blowing air, it could be because of a defective capacitor or worn contractor.
American Standard Air Conditioner Error Codes
Note that these error codes may or may not be accurate or apply to your system. Each manufacturer has a range of different sensor and error codes used for different model lines and these may differ from one model series, production run, region, and may have been updated at any time. This not a comprehensive list and these are for informational purposes only. Any use of them is at your own risk.
Error Codes
| LED Color | Fault LED | Alert Code | Description | Control Display |
|---|---|---|---|---|
| Red | 1 Flash | 90 | Excessive Communication Errors | N/A |
| 91 | Loss of heat/cool demand message | ERR 91 | ||
| Loss of Bit Master (Clock Signal) | ERR 91 | |||
| Red | 2 Flash | 68 | Defrost Fault A | N/A |
| Red | 3 Flash | Defrost Fault B and/or C | N/A | |
| Red | 4 Flash | Defrost Fault A and (B and/or C | N/A | |
| Red | 5 flash | 67 | Ambient Temperature Sensor fault ( Out of range - open or shorted) | ERR 67 |
| Red | 6 flash | Coil Temperature Sensor Fault ( Out of range - open or shorted) | ERR 67 | |
| Red | 7 Flash | 79 | Low Pressure Cutout Fault (Open outside of defrost cycle-hard lock out, cycle power to reset | ERR 79 |
| Low Pressure Cutout Fault Heat/Cool Lock out | ERR 79 | |||
| Low Pressure Cutout Fault (Open outside of defrost cycle-short lock out | Wait | |||
| Red | 10 Flash | 102 | Y2 without Y1 - Miswire (24 Volt mode only) | N/A |
| Red | 11 Flash | 67 | Liquid Temperature Sensor Fault (Out of range - Open or Shorted) | N/A |
| Red | 12 Flash | 113 | Liquid Pressure Sensor Fault (Out of Range - Open or Shorted) | ERR 113 |
| Red | 13 Flash | 67 | External Outdoor Temperature Sensor Fault (Out of Range - Shorted | N/A |
| Red | 14 Flash | 114 | PM Missing with local copy (Operational) | ERR 114 |
| Bad Data in PM with local copy (Operational) | N/A | |||
| Bad Data in PM no local copy (Not operational) | ERR 114 | |||
| PM missing with no local copy (Not operational) | ERR 144 | |||
| Red | 15 Flash* | 50 | Duplicate OD Temperature Sensor | N/A |
| Red | 16 Flash* | 123 | Demand Configuration Fault* | N/A |
| Red | 17 Flash | 80 | High Pressure Monitor Fault (Hard lock out, cycle power to reset) | ERR 80 |
| High Pressure Monitor Fault (Short lock out) | Wait | |||
| Red | 18 Flash | 18 | 24V Sensing Error (24V Missing at Y1) | ERR 18 |
| Green | Slow | 1 Time Per Second | Standby/Idle | |
| Green | Medium | 2 Times Per Second | Call for Capacity | |
| Green | Fast | 5 Times Per Second | Power Up Delay | |
| Green | Solid on | Test Mode | ||
| Green | Intermittent | 1 Flash Every 4 Seconds | Hard Lockout | |
| Amber | Slow | 1 Time Per Device | Device Count | |
| Amber | Fast | 5 Times Per Second | Loss of Communication |
When to Get a Technician for American Standard Air Conditioner Repairs
Although there are certain maintenance tasks you can take on yourself, such as changing your air conditioner filter, many problems will require help from a certified technician. This HVAC technician will be able to properly diagnose the issue and come up with an appropriate repair plan, will have the right tools and parts to perform the repair, and will have the knowledge and experience to get the job done right. Air conditioner issues that will require a technician include:
- Compressor or coil failure
- Leaking
- The unit won’t turn on or cool
- A burning smell coming from the unit
- A hot or damaged power cord
- Frequent breaker trips or blown fuses
- Erratic operation
- Strange and loud sounds
- Refrigerant leak
- Wiring problems or other electrical issues
Who to Call For American Standard Air Conditioner Repairs
Finding help from a trusted HVAC technician when you need it can be difficult, especially if you’ve never needed air conditioner repairs before, have lots of competition in your area to choose from, and don’t know what to look for in a reliable company.
To help you with this, we’ve created an independent HVAC contractor certification program that you can use to find a certified partner who has been vetted and found to be dependable and trustworthy. This includes that they have a good reputation, all the right licenses and certifications, insurance, manufacturer training, and experience, plus they provide quotes that are accurate and transparent.
American Standard’s Warranty Coverage
American Standard air conditioners are backed by an excellent warranty that could save you thousands of dollars on potential repair costs should your unit break down, or you experience a malfunction with a major component. The exact warranty terms depend on the specific model, but to be eligible for the most extended terms, you must register your unit within 60 days of installation. American Standard air conditioner warranties are as follows:
- 12-year limited warranty for the compressor on AccuComfort and Gold series air conditioners
- 10-year limited warranty for the compressor on Silver series air conditioners
- 10-year limited warranty on the outdoor coil for all air conditioners
- 10-year limited warranty on internal functional parts for all air conditioner
Protect your American Standard air conditioner: Register and access your American Standard A/C warranty here
