Troubleshooting - Panasonic WH-SDC03H3E5-1 Bedienungsanleitung

Troubleshooting

The following symptoms do not indicate malfunction�
Symptom
Water flowing sound during operation�
Operation is delayed a few minutes
after restarting�
Outdoor unit emits water/steam�
Steam comes out of the outdoor unit in
the heating mode�
Outdoor unit does not operate�
System operation switches off�
System is hard to heat up�
System does not heat up instantly�
Backup heater is automatically turned
ON when it is disabled�
Operation starts automatically when
the timer is not set�
Loud refrigerant noise continues for
several minutes�
* * COOL mode is unavailable�
1, 2
Check the following before calling for servicing�
Symptom
Operation in HEAT/* * COOL mode is
1, 2
not working efficiently�
Noisy during operation�
System does not work�
Operation LED is not lit or nothing is
displayed on the Remote Controller�
*1 The system is locked to operate without COOL mode� It can be unlocked only by authorised installers or our authorised service partners�
*2 Only displayed when COOL mode is unlocked (This means when COOL mode is available)�
Cause
• Refrigerant flow inside the unit�
• The delay is a protection for the compressor�
• Condensation or evaporation occurring in the pipes�
• It is caused by defrost operation in the heat exchanger�
• It is caused by the protection control of the system when outdoor temperature is
out of the operating range�
• It is caused by the protection control of the system� When the water inlet
temperature is lower than 10 °C, the compressor stops and the backup heater
power turns on�
• When the panel and the floor are heated simultaneously, warm water temperature
may decrease, which may reduce the heating ability of the system�
• When the outdoor air temperature is low, the system may need longer time to heat
up�
• Discharge outlet or intake inlet in the outdoor unit is blocked by some obstacle,
such as a pile of snow�
• When the preset water outlet temperature is low, the system may need longer time
to heat up�
• System will take some time to heat up the water if it starts to operate at cold water
temperature�
• It is caused by the protection control of the indoor unit heat exchanger�
• Sterilization timer has been set�
• It is caused by protection control during deice operation at outdoor ambient
temperature lower than -10 °C�
• System has locked to operate in HEAT mode only�
Check
• Set the temperature correctly�
• Close the panel heater/cooler valve�
• Clear any obstruction in the air inlet and air outlet vents of the outdoor unit�
• Outdoor unit or indoor unit has been installed at an incline�
• Close the cover properly�
• Circuit breaker has tripped/activated�
• Power supply is working correctly, or a power failure has occurred�
EN
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