I have a Zanussi ZFT710W Freezer where the orange light has been on for about a day. It used to be the green light that is on; do I need to be concerned? Thankyou

Could you please recheck for the model number. R134A is a reference to the coolant used in the freezer mechanism.
Orange is often a reference to the 'Fast Freeze' function being turned On. Green is showing the freezer unit is at the correct temperature. Red is warning the freezer is Too warm. Some freezers are fitted with an 'Economy' function where the freezer can be run at a lower power level when not used regularly such as when on holiday.

Red light lit on freezer means that is not reaches operating temperature.

Most often the old freezer has three indicator lights.
- Green light : that it is brought to a power source and turned on - Red light : means that the temperature is above -18 degrees
- orange light : pressing the so-called SUPER-switch which means that the compressor is running continuously. The SUPER-button switch on a few hours before you begin deep-freeze foods. Freezing time depending on foods quantity (kg). With old freezer must be careful to turn off the switch S (orange light) when the red light goes out or when foods are frozen, otherwise after a few days may burn out the compressor. You should be following the instructions from user manual.
In new freezer managed by the electronics, this function has a predetermined maximum duration, in order to protect the compressor, and can have different marketing names like "shopping".....

Dado

Starting the Appliance
Insert the plug into the wall socket. The green pilot light will illuminate to show that the appliance is switched on. The red alarm light will also illuminate until the freezer reaches the correct temperature.

Alarm Light
The red alarm light will illuminate when the temperature in the freezer is higher than the thermostat setting. This alarm light will illuminate if:
- The appliance has just been started.
- Fresh food has been put in the freezer.
- The lid has been left open, opened frequently or open for too long.
The red light will go out when the freezer has returned to the correct temperature

Dado

http://www.manualsonline.com/

I’m happy to assist further over the phone at https://www.6ya.com/expert/david_dc2f9e0a44104720

if you turn the freezer off for some time then on again the red light has to come on as an indicator for high temperature it goes off by itself when the freezer attains the required temperature according to the thermostat settings ,that is the lower the settings the faster the red light goes off. the orange light indicates super cooling and the green light indicates power supply.if you turn the two lights off and the freezer still works without the green light on that means that the bulb for the green light is faulty and you don,t need to worry

no. the orange light is the temperature light and the green light is the mains light.

Do not put a towel on your freezer or anything that could prevent a good seal from top of freezer.
jim

no, its probably weak capacitors which provide power to switch the relay. Take the control board out and ask a friendly TV repair tech to change the capacitors

I used to sell freezers.the green light tells you the mains is on and the freezer should work.The red light is to inform you the freezer is not low enough temperature,and the orange light is a fast freeze light to over ride the thermostat for use when introducing fresh food.It should not be used for prolonged periods as it may burn out the compressor although in your case you already have a problem and should seek advice or buy another freezer.If you get a cheap freezer thermometer it should confirm what I am saying.

The orange button is the "turbo boost" - for reduzing the temperature the fast way. Mostly used when first time use or you put in a lot of unfrozen things at once. When reaching optimal temperture it goes off automatically. The red one is the alert button. Not sure about the green one. Under normal conditions none of the lights is on.