User Manual Fisher & Paykel RF610AZUB5 569L French Door Fridge

F31 is No display signal received (shorted or broken wire) clock or data line. Can you fix it, probably - if you pull out the display module and check the wiring.

It is frost free, and most likely has an inverter ( a separate black box next to the compressor)

Yes. I think I had a magnetic calendar over it as we never connected the noisy icemaker

- Clean the exterior door with liquid dishwashing detergent dissolved in warm water and a soft cloth.
- Dry the door with a lint-free cloth.
- Do not use any abrasive stainless steel cleaners, glass cleaners, solvents or scourer pads as these will damage the door surface.

- To maximise operating efficiency regularly vacuum the flooring around your appliance.  
- Cleaning behind the appliance is required once or twice a year. More frequent cleaning may be necessary for dusty homes or those with pets shedding hair.
- To do this wind up the feet and carefully ease the refrigerator out of its position. Switch off and unplug.
- Vacuum the flooring behind your appliance and the rear compartment cover (where fitted) to remove dust accumulation. Use a dry lint-free cloth to clean the appliance walls and surrounding cabinetry.
- After cleaning, plug in and switch on. Push the appliance into position and wind feet down.