f. Defrost cycle
• Automatic active defrosting
When the machine is operating in low temperatures it is very common for ice to build up on the
external coil. The heat pump has a built in defrost protection program which will activate when it
senses ice starting to form.
When machine is defrosting, starts flashing; after defrosting is on continuously
• Forced defrosting,
If the heat pump requires manually defrosting for testing or a sensor is faulty please follow these
instructions, the machine must be in heating mode and the compressor is working continuously for
more than ten minutes, Whilst the unit is running, press and on the
controller simultaneously and hold for 5 seconds. When the symbol is flashing, defrost has
started, and will continue until the external coil temperature reaches a certain temperature adequate
for continued operation. If the symbol stops flashing forced defrost has stopped.
*Note: the interval between forced defrosting should be more than 30 minutes apart.
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