Panasonic WH-UD28AE, Руководство по эксплуатации

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ENGLISH
Symptom Symptom Check Check
Heating operation is not working effi ciently. • Set the temperature correctly.
• Is the panel heater valve closed.
• Clear any obstruction at the air inlet and air outlet vents of outdoor unit.
Noisy during operation. • Check if the unit has been installed at an incline or the cover is not
closed properly.
The unit does not work. • Check if the circuit breaker is tripped.
Operation LED is no lit or control panel display
is blank.
• Is the power supply off or power failure.
Check the following before calling for servicing. Check the following before calling for servicing.
TROUBLESHOOTING TROUBLESHOOTING
Symptom Symptom Cause Cause
Water fl owing sound during operation. • Refrigerant fl ow inside the unit.
Operation is delayed a few minutes after
restart.
• The delay is a protection to the unit’s compressor.
Outdoor unit emits water/steam. • Condensation or evaporation occurs on pipes.
Outdoor unit emits steam during heating
mode.
• This is due to defrost operation happens at the heat exchanger.
Outdoor unit does not operate. • When the outdoor temperature is out of the operation condition range,
the heatpump system enter protection control.
System diffi cult to heat-up. • When heating is operated by indoor unit together with fl oor heating or
panel heater simultaneously, there may be case where warm water
temperature is getting lower and cause fl oor heating or panel heater
heat-up is weaken.
• When outdoor air temperature is low, it may be diffi cult to get warm.
• Is the snow pile blocking the discharge outlet or intake inlet of outdoor
unit.
• When water outlet set temperature is low, it may be diffi cult to get warm.
System cannot get warm instantly. • Due to the nature of the heatpump system, it may take some time to
heat-up the water if the unit is operated from cold-start.
Operation starts after power resumes. • Auto restart is in function and operates under.
The following symptoms do not indicate malfunction. The following symptoms do not indicate malfunction.