Dantherm Silencio 600 Service Manual page 67

How to replace the phase reversal monitor,
Follow these steps to replace the phase reversal monitor:
Procedure
Step
1 Switch of all the power to the unit
2 Release the control board by unscrewing the screw that hold it in place
3 Release the two locking mechanisms in each side of the control board and
carefully pull up the control board
4 Remove the internal front cover at the control board by unscrewing the 12
torx 25 screws
5 Release all 4 wires by loosening the screws
6 Loosen the 5 screws in the compressor contactor
Result: The phase reversal monitor will "fall down"
7 Adjust the new phase reversal monitor with a slotted screwdriver. It must be
adjusted exactly as the faulty phase reversal monitor was adjusted
8 Place the new phase reversal monitor where the faulty one was mounted
and tighten the 5 screws on the compressor contactor
9 Reconnect the 4 wires
10 Remount the front cover
11 Place the control board in the holder by pushing the control board in place in
the holder on the Silencio and lock the two locking mechanisms in each side
of the control board, and finally tighten the screw that holds it in place
12 Connect the power
Result: The test program runs through all functions.
Check that the unit does not come out with an alarm signal.
In case of an alarm signal, please see section "Fault finding guide", page 71
continued
Action
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