Troubleshooting
94 Samsung Electronics
Normal flow rate?
- Outdoor unit capacity ≤ 9kW : When the water
flow rate is less than 4.5V or greater than 0.7V
- Outdoor unit capacity > 9kW : When the water
flow rate is less than 4.5V or greater than 0.9V
Criteria
4-3-3 Water pump & Flow Sensor error
Normal flow rate error
• In case of normal flow rate in 10min during water pump signal is OFF
• Refer to how to determine below
Wired remocon display
Cause of problem
No
Re-start after put the connetor in the PBA.
Yes
1. How to check
* Water pump is detected only during stop
Flow Sensor needs to be replaced.
(If water pump is off)
Yes
No
After putting out the connector(F/S)
from the PBA Measure its status is
low voltage or open?
Does flow Sensor connector
come out of the PBA?
Yes
After putting out the connector(F/S)
from the PBA Measure its status is
low voltage or open?
No
Is it short?
Yes
No
Yes
Yes
Does the water flow?
PBA needs to be replaced
Does any extra
water pump installed?
Yes
Check the extra pump
No
E912
▶ Water pump OFF (Normal flow rate)
▶ Water flow range
Water flow rates (LPM)
Min Max
Outdoor unit capacity ≤ 9kW 7 48
Outdoor unit capacity > 9kW 12 58
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