Heat Controller SMA - Resetting Phenomenon Often Occurs During Operation; Indoor Fan Speed out of Control

Service manual
10.4 Resetting phenomenon often occurs during operation.
(That is automatically entering to the status when power is on.)
T
h
e r
e
a
son is that the instantaneous voltage of main chip is less than 4.5V. Check according to the following
procedure:
10.5 Indoor fan speed out of control .
Just for 9K and 12K type when indoor fan speed has been out of control for over 1 minute
Heat Controller, Inc. Jackson, MI 49203
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