Below is a link to the user manual to your machine. If toy don't already have it. Give it a look and and keep for future reference.
There is no LCD display on this model machine. Just the controls in the back of the ref section. And in this unit if there is a fault recognized you will get a beeping or tone and the lights by the controls will flash as well. Those flashes will indicate the fault or error code.
This is and excerpt from the user manual on page 14. Tis will let you know what to look for. But if you are getting a fault it is recommended that you call fisher and paykel to set up service. That doesn't always mean that you have to. Depending gon the fault, this may be able to be fixed by you. And quicklyamd cheaply
If the electronic controller detects a fault from which it is unable to recover an alarm will sound. When the fresh food compartment door is opened a fault code (specific pattern of lights) will flash red and green on the Control panel to alert you to the fault. The audible alarm will stop when any button is pressed but the lights will remain flashing. If such a fault occurs, call your Fisher & Paykel Appliances
Authorized Service Centre immediately; the fault code will help the service person find and remedy the cause of failure.
If this is happening in your machine plea take note of what lights are flashing and email me back here and I will check on the fault for you and see if it is something you can fix or if you will need an authorized f and p service tech to come out and do it for you.
And if you would like to just save time and have a service tech come out to you and take of it anyway, please email me back here with the state and county to which you live in and I will either recommend an authorized f and p service company or give you a list of closest places to you.
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And should you still have more questions after hitting the green accept button below yo can email me back here for up to 30 days after and ask any questions you may have and I will answer them for no exa charge.