Haier HWD100-B14979SUK program timing issues

A few weeks ago my washing dryer reported the error "fd" Dry heating element-error. A technician came and replaced the main board a valves elements on the back. Now the machine is unusable. When I select a program with drying, the countdown timer jumps from 2:24 hours back to 5:20. Moreover, the countdown timer is unreliable. These issues make the machine unusable, environmental unfriendly and economically a disaster.