Daikin Altherma - Troublingshooting

advertisement
Daikin Altherma™ Troubling Shooting
Outlet thermistor failure
•
•
•
•
•
Code: 81
Part: Outlet water
thermistor
Location:
Activation failure:
Possible action to resolve
the problem:
– Check connector
– Check resitance value
– Replace thermistor
R3T
2
Freeze up problem
•
•
•
•
•
Code: 89
Part: Heat exchanger freez-up
Activation failure: Outlet water
temp. too low
Location:
Possible action to resolve the
problem:
– Check water flow in the system.
Minimum water flow system 9liter /
min.
R3T
3
Flow failure
•
•
•
•
•
Code: 7H
Part: Flow failure
Location:
Activation failure: Flow switch
open during operation (no signal)
Possible action to resolve the
problem:
– Check water flow in the system.
(Minimum water flow system
20liter / min.)
– Check water pressure in the
installation. (Minimum 0.3 bar)
– Check shutt OFF valves
– Is water system purged
– Check pressure drop and speed
of the waterpump
– Check pump operation
R3T
5
Outlet water temperture too high
•
•
•
•
•
Code: 8H
Part: Outlet water thermistor
Location: Outlet back up heater
Activation failure: If outlet water >
65°C
Possible action to resolve the
problem:
– Check if contactor(s) back up
heater is not welded
– Check if thermistor is not
damaged
– Check if correct resistor value of
thermistor
• Procedure :Refer to service
manual
R3T
6
Indoor PCB failure
•
•
•
•
•
Code: A1
Part: Indoor PCB
Location: Switchbox
Activation failure:
Possible action to resolve the
problem:
– Replace PCB
7
Insufficient cooling or heating
•
•
•
•
Code: A5
Part: Liquid sensor hydrobox
Location:
Possible action to resolve the
problem:
–
–
–
–
–
–
–
Check water flow in the system.
(Minimum water flow system
9liter / min.)
Check water pressure in the
installation. (Minimum 0.3 bar)
Check shutt OFF valves
Is water system purged
Check pressure drop and speed of the
waterpump
Check refrigerant charge
Check thermistor
•
Procedure: refer to service
manual
R3T
8
Booster heater thermal protector
• Code: AA
• Part: Thermal protector
booster heater or back up
heater *
• Location:
• Possible action to resolve
the problem:
– Check if thermal protection is not
damaged.
– Check contactor of the electric
BUH / BSH
9
Stucked flow switch
•
•
•
•
•
Code: CO
Part: Flow switch failure
Activation failure: Flow swith
remains closed when pump is not
operating
Location:
Possible action to resolve the
problem:
– Check for dirt in flow switch
– Replace part is required
R3T
10
Heat exchanger thermistor failure
•
•
•
•
•
Code: C4
Part: Liquid sensor
Activation failure: Sensor broken or
out of range
Location:
Possible action to resolve the
problem:
– Check connector
– Check resistance of the sensor
– Procedure: refer to servicemanual
for procedure
– If damaged replace part
R3T
11
Outdoor PCB failure
•
•
•
•
•
Code: E1
Part: Outdoor PCB failure
Activation failure:
Location:
Possible action to resolve the
problem:
– Out of control of CPU
• Voltage drop
• Power loss
• Noise on power supply
– Defect outdoor PCB
12
Overload activation of compressor
•
•
•
•
•
Code: E5
Part: Overload protector
compressor
Activation failure: Failure If
overload protector ( >130°C) is
activated twice in one hour
Location: Outdoor unit
Possible action to resolve the
problem:
–
–
–
–
Refrigerant shortage.
Malfunction four way valve.
Outdoor PCB failure.
Electronic expansion valve
defective.
13
Compressor start up failure
•
•
•
•
•
Code: E6
Part: Compressor locked
Activation failure: : Failure, if error
occurs 16 times, counter reset if
compressor runs normal for 5
minutes
Location: Outdoor unit
Possible action to resolve the
problem:
– Replace outdoor PCB
– Replace compressor
14
Fan motor failure
•
•
•
•
•
Code: E7
Part: Outdoor fan motor
Activation failure: Failure, if error
occurs 16 times, counter reset if
compressor runs normal for 5
minutes
Location: Outdoor unit
Possible action to resolve the
problem:
– Fan motor breakdown
– Bad contact between PCB and fan
motor
– Blockage of the fan blades
15
Sanitary water too high
• Code: EC
• Part: Sanitary tank temperature
• Activation failure: If temperature
sanitary water > 89°C
• Location: Sensor inside sanitary
tank
• Possible action to resolve the
problem:
– Check position of sensor in socket
– Check if contactor(s) booster heater is
not welded
– Check if thermistor is not damaged
– Check if correct resistor value of
thermistor
18
Discharge temperature too high
•
•
•
•
•
Code: F3
Part: Discharge sensor
Activation failure: Failure if
discharge temperature > 120°C
for 6 times
Location: Sensor located on the
discharge pipe of compressor
Possible action to resolve the
problem:
–
–
–
–
Refrigerant shortage.
Malfunction four way valve.
Defective discharge sensor.
Defective EEV driver.
19
Voltage and current sensor failure
•
•
•
•
Code: H0
Part: Voltage / Current sensor
Activation failure:
No measurement of current during
compressor operation.
Possible action to resolve the
problem:
–
–
–
–
Reactor disconnected
Compressor disconnection
Outdoor PCB failure
Compressor defective
22
Outdoor ambient thermistor
•
•
•
•
•
Code: H9
Part: Thermistor
Location
Activation failure: Resistance
value out of range
Possible action to resolve the
problem:
–
–
–
–
Check connector
Check resistance value
Replace thermistor.
Outdoor PCB
25
Discharge pipe thermistor
•
•
•
•
•
Code: J3
Part: Discharge pipe thermistor
Location
Activation failure: Resistance
value out of range
Possible action to resolve the
problem:
–
–
–
–
Check connector
Check resistance value
Replace thermistor.
Outdoor PCB
26
Outdoor heat exchanger
•
•
•
•
•
Code: J6
Part: Thermistor
Location
Activation failure: Resistance
value out of range
Possible action to resolve the
problem:
–
–
–
–
Check connector
Check resistance value
Replace thermistor.
Outdoor PCB
27
Electrical box temperature rise
•
•
•
•
•
Code: L3
Part: Radiation fin thermistor
Location: Outdoor PCB
Activation failure: failure if
temperature > 85°C and
compressor OFF
Possible action to resolve the
problem:
–
–
–
–
Defective outdoor fan
Defective Fin thermistor
Defective Outdoor PCB
Heat conductive paste
29
Radiation fin temperature rise
•
•
•
•
•
Code: L4
Part: Radiation fin temperature rise
Location: Outdoor PCB
Activation failure: failure if temperature
> 105°C and compressor ON for 4
times
Possible action to resolve the problem:
–
–
–
–
Defective outdoor fan
Defective Fin thermistor
Defective Outdoor PCB
Heat conductive paste
30
Thank you for your attention!
36
Download
Related flashcards

Electronics

23 cards

Digital electronics

21 cards

Mobile computers

37 cards

Television technology

33 cards

Handheld game consoles

47 cards

Create Flashcards