![background image](http://html.mh-extra.com/html/panasonic/wh-tx30b9e8/wh-tx30b9e8_operating-instructions-manual_268942008.webp)
8
TROUBLESHOOTING
TROUBLESHOOTING
Symptom
Symptom
Cause
Cause
System dif
fi
cult to heat-up.
• When outdoor air temperature or heater set temperature is low, it may
be dif
fi
cult to get warm.
System cannot get warm instantly.
• Due to the nature from the heatpump system, it may take some time to
heat-up the tank water if the unit is operated from cold-start.
Operation starts after power resumes.
• Unit is operates under auto restart function.
The following symptoms do not indicate malfunction.
The following symptoms do not indicate malfunction.
Symptom
Symptom
Check
Check
Heating operation is not working ef
fi
ciently.
• Set the temperature correctly.
• Is the panel heater valve closed.
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.
Sanitary water pressure is low.
• Check if the main water supply is normally.
• Check if the
fi
lter is dirty.
Check the following before calling for servicing.
Check the following before calling for servicing.
The operation LED blinks and error code appear on control panel display
The operation LED blinks and error code appear on control panel display
TANK BOTTOM
ERROR
C
C
C
• Turn the unit off and reveal the error code to authorized dealer.
F567164_OYTH0909-01_1EN.indd 8
F567164_OYTH0909-01_1EN.indd 8
9/3/2009 10:02:31 AM
9/3/2009 10:02:31 AM