Trouble Shooting For Common Faults - welldana 34-180150 Installations- Und Benutzerhandbuch

X. Trouble shooting for common faults
Failure
Heat pump doesn't
run
Fan running but
with insufficient
heating
Display normal, but
no heating
If above solutions don't work, please contact your installer with detailed
information and your model number. Don't try to repair it yourself.
Note: If the following conditions happen, please stop the machine
immediately, and cut off the power supply immediately, then contact
your dealer:
a）Inaccurate switch action;
b）The fuse is frequently broken or leakage circuit breaker jumped.
Reason
No power
Power switch is off
Fuse burned
The breaker is off
evaporator blocked
Air outlet blocked
3 minutes start delay
Set temp. too low
3 minutes start delay
Wait until the power recovers
Switch on the power
Check and change the fuse
Check and turn on the breaker
Remove the obstacles
Remove the obstacles
Wait patiently
Set proper heating temp.
Wait patiently
14
Solution