Soleus Air KFHHP-22 service manual Poor cooling heating effect Improper setting of temperature

Poor cooling (heating) effect

Improper setting of temperature		Adjust the set temperature
Whether cooling (heating) load		Check the estimated load of cooling (heating)
is proper
			Vacuumize	after leakage detection
	Leakage or shortage of refrigerant		and leakage repair. Charge refrigerant
			according to specification.
	Leakage occurs between high and		Replace the compressor
	low pressure inside compressor
Malfunction of	Malfunction of four-way valve		Replace the four-way valve
refrigerant flow
	Partial blockage of capillary		Replace the capillary
			Use the method of observing condensation
	Blockage of cooling system		on the evaporator and pressure value of
			high pressure	manometer to see whether

the system is blocked and carry out corresponding handling on the system

Poor thermal insulation of connecting	Ensure that both thick pipe and thin pipe are insulated
	well. The exposed part of the connector and copper pipe
pipe of indoor and outdoor unit
	must be insulated as well.

Air circulation is insufficient

Heat exchanger of outdoor unit is blocked

Air filters are blocked

Fan speed is set too slow

Fan speed turns low

Improper installation location for outdoor unit

Clean the dust accumulated on the surface of the heat exchanger

Clean the filter

Set the fan speed to high or medium speed

Damage of	Replace	the
capacitor	capacitor
damaged
Damage of	Replace the motor
motor

Outdoor unit should be installed in a place with well ventilation

Outdoor temperature is too high

Indoor sealability is inadequate; too many people go in and out frequently; there is heating unit in the room.

Flashing or awning can be installed appropriately. If the max. cooling capacity cannot be satisfied, replacement of the air conditioner is recommended.

Maintain a certain degree of indoor sealability. Try not to use appliance with high amount of heat.

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