Дополнительное Руководство для Soleus kfhhp-12

7. Module protection (H5):

Handling method:

Check if the voltage between power module P and N is too low and
if the current is too high. In normal condition, voltage between P and

N should be about 320V.

Normal

Abnormal

Check power supply circuit of outdoor unit (if PTC resistance

rectifying bridge, reactor, capacitance etc. is ok).

Temperature of power module is too high,

which causes overheating protection

Protection is still displayed

Confirm the setting status of outdoor unit (cooling)

Normal

Confirm if outdoor fan motor is running; unplug the

three connecting wires between U, V, W of compressor

and power module. Turn on the unit to see if outdoor

fan runs normally (about 1 minute)

Outdoor fan stops

Measure the voltage of outdoor

fan connector

No voltage

Normal voltage

Replace the fan

Replace the mainboard

motor

of outdoor unit

Check if radiating paste is spread

evenly or radiating sticker is stuck

well; if screws of power module

is tightened

Reinstall power module and

re-spread radiating paste or

stick radiating sticker on the

radiator of power module.

Poor radiation, heat exchanger

is dirty

Remove obstructions
and clean

Outdoor fan runs

Confirm if there is voltage output and balance of

voltage between any two phases of U, V and W.

Yes

Whether module type

Replace the power module

is correct

Normal

Abnormal

Normal

Abnormal

Measure the three-phase

Replace the module

with correct type

resistance of compressor

Replace the

Whether cylinder of

compressor is stuck

compressor

If the unit runs normally after connected
with the new compressor for trial run, the

cylinder of original compressor is stuck