Hi,

We have a Daikin ducted reverse cycle unit. The unit operates faultlessly during the summer months and cools the house beautifully but during winter,the green light on the control panel unit blinks and the unit switches off. The error code E3 always appears. Our technician replaced the actuator High pressure switch last year and it worked reasonably well but every so often the light would blink and the unit would stop working again. All I had to do to get the unit running again was turn the unit off and then on at the control panel and it would start working for an indefinite amount of time - could be weeks, days and at the moment every half hour. We are desperate. The technician suggested we replace the entire unit.

We do not know what to else do. We’re in our 60’s and do not want to freeze during winter. We are in the early stages of winter in Australia already. Just need some expert opinions. Please help. Just nee

The model numbers are
RZQ160PV4A

FCQ140PV4A

Serial number:E005589
Manufacturing date: 07 3