Daikin D-Series User Manual

Si18-525B Troubleshooting for BP Unit
Troubleshooting 361
6.3 Faulty BP Liquid or Gas Pipe Thermistor
Remote
Controller
Display
J0
Method of
Malfunction
Detection
Malfunction
Decision
Conditions
When the BP liquid or gas pipe temperature sensor became short-circuited or open.
Supposed
Causes

Faulty BP liquid or gas pipe temperature sensor

Faulty connectors connection of BP liquid or gas pipe temperature sensor
Troubleshooting
Temp. Resistance
-10°C 117kΩ
0°C 67kΩ
10°C 40kΩ
20°C 25kΩ
30°C 16kΩ
40°C 10kΩ
50°C 7kΩ
60°C 5kΩ
70°C 3kΩ
Replace thermistor or
thermistor assembly.
If insufficient contact is not
detected, replace the
corresponding PCB.
YES
Is the resistance
normal referring to the
table below?
NO
(Q0392)
Disconnect the thermistor
connectors from the
corresponding BP PCB and
measure the resistance of
liquid or gas tube temperature
sensor.
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.

Daikin D-Series Specifications

General

HSPF Rating	Up to 10.0
Cooling Capacity	9, 000 - 36, 000 BTU/h
Heating Capacity	9, 000 - 36, 000 BTU/h
Energy Efficiency Ratio (EER)	Up to 12.5
Sound Level	19 - 50 dB (Indoor), 49 - 60 dB (Outdoor)
Noise Level	19 - 50 dB (Indoor), 49 - 60 dB (Outdoor)
Power Supply	208/230V, 1-phase, 60Hz