Poor cooling or heating

Trouble Shooting

Before ask for services, please first check your unit against the following. Air conditioner won't start.

Is power supply switch turned on?

Power supply switch is not set at ON.

Is city power supply normal?

Power failure?

Is leakage current breaker activated?

This is very dangerous, please disconnect power supply immediately and contact your dealer.

Are operation control		Is air filter too dirty?	Are there any obstacles in inlet
adjusted correctly			or outlet grill?
as specified?	Proper
as specified?	temp
Are horizontal louvers at up		Any doors or windows left
position (in heating mode)?		open?

Poor cooling

Is there any direct sunlight in the room?

Cold air blows out (in heating mode)

If there are unexpected heat sources in the room?

Too many people in the room?

Is air conditioner in standby condition in heating mode?

If your unit still can't work properly after above mentioned checks, or following problems occur, please stop it immediately and contact your dealer.

Fuses or circuit breakers often blow out.

Water comes out in cooling/dry operation. Operation is abnormal or sound is heard.

Failure description	Flash times of indoor
	receiver board

Room temp. sensor abnormal	Power LED flashes 1 time

Indoor coil temp. sensor abnormal	Power LED flashes 2 times

Outdoor temp. sensor abnormal	Power LED flashes 3 times

Outdoor coil temp. sensor abnormal	Power LED flashes 4 times

Over-current malfunction	Power LED flashes 5 times
High / Low pressure abnormal or Comp. discharging protection malfunction	Power LED flashes 16 times
Communication malfunction between indoor and wired controller	Power LED flashes 8 times

Communication malfunction between indoor and outdoor abnormal	Power LED flashes 9 times

Temperature protection malfunction	Power LED flashes 13 times

HCFU-42CF03, HCFU-42HF03 specifications

The Haier HCFU-42HF03 and HCFU-42CF03 are advanced air conditioning units that highlight Haier's commitment to innovation and efficiency in climate control technology. Designed for both residential and light commercial applications, these models stand out for their powerful performance, energy efficiency, and user-friendly features.

One of the main features of the HCFU-42HF03 and HCFU-42CF03 is their dual-function capability, providing both heating and cooling. This versatility makes them a year-round solution for maintaining indoor comfort, regardless of the external weather conditions. Utilizing cutting-edge inverter technology, these units adjust the compressor speed based on the cooling or heating demand, ensuring optimal temperature regulation with reduced energy consumption.

Both models boast impressive energy efficiency ratios (EER) and seasonal energy efficiency ratios (SEER), aligning with global standards for eco-friendly operations. The units are designed to minimize energy wastage, allowing users to enjoy a comfortable environment while keeping electricity bills manageable. Their advanced refrigerant management systems enhance performance further, allowing for rapid cooling and heating responses.

In terms of features, the HCFU-42HF03 and HCFU-42CF03 come equipped with a robust air filtration system. This system effectively captures dust, allergens, and other particulates, improving indoor air quality, which is especially beneficial for allergy sufferers. The models also include programmable timers and remote control functionality, allowing users to customize their cooling or heating schedules for maximum convenience.

Another critical characteristic is their whisper-quiet operation. The advanced engineering of these units minimizes noise levels significantly, ensuring they can be used in noise-sensitive environments, such as bedrooms or offices, without disturbance.

In addition, both the HCFU-42HF03 and HCFU-42CF03 are designed with durability in mind. The rugged build quality ensures reliable operation over the years, while the contemporary aesthetic allows them to blend seamlessly with various interior designs.

Overall, the Haier HCFU-42HF03 and HCFU-42CF03 represent the pinnacle of modern air conditioning technology. Their combination of versatile functionality, impressive efficiency, user-friendly features, and commitment to air quality makes them an excellent choice for anyone looking to enhance their indoor climate control system.