The remaining time on the control varies up and down when using Auto-Dry (Sensor Dry). The Auto-Dry system senses the humidity level in the drum by reading the amount of moisture as the garments touch the sensor, so it is normal to see an occasional jump in time up or down of 5 minutes during the beginning of the cycle.
As the cycle progresses, the actual time will become more accurate with a normal load. Smaller loads with only a few items only touch the sensor bars occasionally; if the load is small this can be considered to be normal operation.
The moisture sensor can be cleaned with a small amount of rubbing alcohol on a clean cloth; this is often caused by a buildup of fabric softener on the metal bars.
If you continue to have problems, please contact Haier Appliances at 1-877-337-3639 or visit https://www.haierappliances.com/support/schedule-service to arrange service.