Haier HBU-42HC03 User Manual - Page 24

TROUBLE SHOOTING The following symptoms are not faults Symptom Reason Conditioner doesn't work When stop machine then continue operation. When press temp setting key and release at once. The operation indicating lamp lights on the remote controller is not fault; safety unit is protecting the machine; after 3 minute the machine automatically start. When power turns on. The computer is ready to operate, wait for 1 minute or so. White fog is blown out When humidity too high in the cooling operation (high content of oil or just in room). Uncleaness of the indoor unit can cause temp. fluctuatio*n1. When heating has started after defrosting. The frost removed turns into rising vapour. Outdoor unit turns hot During stopping the machine. Compressor is preheating so that the conditioner start smoonthy. Conditioner makes noise As it starts buzzing noises exist. Constant noise in cooling or heating. The noise is existing after temp.controller operates, 1 minute after turn weak. There is sound of gaseous refrigerant flowing in the conditioner. There are noises when start, stop and defrosting begins, stops. The sound given out when gaseous coolant stop folwing or switching. There are constant noise during operation It's the sound of operation of discharging or after operation. system. *2 Noise during operation and after operation. Resin part expands or contract due to temp. change and give out this sound. Conditioner blow Start after a long term of unuse. out dust Conditioner give In operation out smell Dust in indoor unit is blown out. Room smell or cigarrette smell sucked into indoor unit is blown out. NOTE *1 The inner part of indoor unit must be cleaned. Consult dealer, because clean must be done by technician. *2 In cooling operation, discharging system discharge water in room. 22