What is the orange light for on unidentified freezer?

Orange light means it cannot cool properly. I would get it checked by a competent refrigeration engineer.

first thing to go on freezers is the thermostat i'd check that out first its attached to the big variable knob next to orange light

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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

Are you sure it is a standby light? Usually the orange light is showing you it is in fast freeze. Try switching the orange button off and monitor the temperature. The freezer should cycle on and off, not run continuously.

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

freezer not working on ariston... Solve freezer not working on ariston fridge freezer 2 orange lights on top of fridge keep beeping every... (More) freezer not working on ariston fridge freezer 2 orange lights on top of fridge keep beeping every two hours causing fridge not to work is there a reset button

Normally orange signifys that the machine has been switched into fast freeze , check your controls

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.

Try advancing the defrost timer manually.