System modes can often be fixed by changing the settings directly or improving the unit’s surroundings. While these modes are not necessarily maintenance issues, they can be the cause of your unit not functioning as expected. Each of these will display a specific code. System ModesĬertain operating states or system modes are designed into your unit for safety, security, or compatibility functions. System modes, failures, airflow alerts, and refrigeration alerts are common problems that can be detected by your Amana PTAC’s diagnostic function. There are four categories of codes that your system might display for a maintenance issue. If the unit does detect an error, active failure, mode, or lockout, the display will show one of the following codes. While you may still have a maintenance issue, the unit may not have a diagnostic code to report it. There may also be a green light (also known as the status light) in the lower-left corner of the touchpad below the “OFF” button.Ī set of dashes on the display ( – – ) indicates that no erroractive failure, mode, or lockout can be detected at that time for the unit. Where there are normally numbers to indicate temperature, there will either be a set of dashes ( – – ) or a diagnostic code. A red dot will flash in the corner of the display. If done successfully, the display will change and the machine will now be in diagnostic mode. While holding the arrows, press the “COOL” button twice.Press and hold the UP (+) and DOWN (-) arrow buttons.To put the machine in diagnostic mode, there aretwo2 steps: This allows the unit to check for errors and produce a code that describes its current operating state. In order for your PTAC to display an error code, you will first need to put the machine in diagnostic mode. We’ll also cover a few troubleshooting steps and tips you can use to make sure your unit runs properly. In this guide, we’ll walk you through the list of diagnostic codes that your Amana PTAC may display and provide some possible solutions. However, the solutions available for these issues may surprise you. If you’re an HVAC technician, you are probably familiar with some of these codes already. Luckily, Amana PTACs are equipped with a diagnostic function that helps to identify possible maintenance issues with a system of codes. While many issues with PTACs can be fixed by simply cleaning the air filters or the coils, other issues may be more complex and require a service technician. There are a number of troubleshooting steps you can take to be sure your Amana PTAC unit is back up and running properly. As with any piece of HVAC technology, Packaged Terminal Air Conditioners (PTACs) will likely encounter maintenance issues.
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