Troubleshooting - Heat Controller B-VFH09MA-1 Installation, Operation & Maintenance Manual

VFH InverterFlex - Ductless Mini-Split
®

Troubleshooting

Indoor unit can not blow air:
Moisture on air outlet:
Heating indicator blinks: ON for 10s and
OFF for 0.5s.
Buttons on the cover are not working or
are insensitive.
• There is loud/abnormal noise during operation.
• Strong odors are emitted during operation, such as
burning smells.
• Water is leaking excessively from the unit.
• The circuit breaker trips often.
• Error codes "C5, F1, F2, H6" appear on the
display.
Problem
If any one of the following situations occur, immediately turn off and
cut off the power supply, then contact an authorized servicer.
Troubleshooting
• In HEAT mode, when the temperature
of indoor heat exchanger is very low, air
flow stops in order to prevent cold air from
blowing for 2 minutes.
• In HEAT mode, when the outdoor
temperature is low or humidity is high, frost
will form on the outdoor heat exchanger. The
unit will defrost automatically and indoor unit
will stop blowing air for 3-12 minutes.
• In DRY mode, the indoor fan will stop
blowing air for 3-12 minutes in order to avoid
condensed water being vaporized.
• If the unit operates in a high humidity
environment for a long time, moisture may
condense in the air outlet grill and then
drip off. Try changing the position of the
louver on the indoor unit to prevent this.
• It is normal, the unit is in defrost mode.
Operation will return when defrosting is
complete.
• Please check whether the cover is closed
completely.
Turn off the unit and
cut off the power supply.
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Heat Controller