Soleus Air KFHHP-22 service manual Troubleshooting, Replace the controller Change battery

9Troubleshooting

Analysis in this section is used for D.C. Variable Frequency Series. Before analysis, you can diagnose according to the code displayed on indoor unit or indicator display on outdoor unit. (Refer to Malfunction display section).

Breaker tripped or fuse burnt out

	Air	conditioner
	does	not response
Air	after	powered on.
	(The	buzzer		does
conditi	not sound after the
oner	plug	is	connected
	and	the	unit	does
cannot
	not response			after
start up	the		remote
	controller is			used
	to turn it on)

Remote controller does not receive signal (When powered on, the buzzer will send out a sound, unless it is broken)

When the breaker is set ON, it will trip at once

When the unit is turned on, the breaker will trip in a few minutes

No power supply

The power plug is not or poorly connected

Controller fuse is burnt out

Loose or poor contact of transformer connection, or transformer malfunction

The controller is broken

Batteries of remote controller are low

Malfunction of remote controller

Loose or poor connection of receiving head

Receiving head is broken

Measure the insulating resistance for grounding to confirm whether there is electrical leakage or short circuit in the unit

Insulation malfunction of line or componen in the air conditioner. Insulation breakdow occurs after radiation, which causes shor circuit or electricity leakage. Measure insulating resistance or use one-by-on elimination method;

Malfunction of fuse. Replace it.

Check power supply circuit

Check and plug well plug, make loosen contact firm

Change control fuse

Secure the wire connection: measure the output voltage of the transformer and replace it if the value is wrong

Replace the controller

Change battery

First press the "AUTO" button of the manual switch. If there is no response, check according to the above method; if it is normal after the button is pressed, check if the installation location and wire connection of the receiving head are correct. If correct, replace the receiving head, or the remote controller.

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