Instruction of replacing Mullion heater on BM21/25 series
Instruction
Notice
1.Be careful:the distortion of clip
will cause gap between the bottom
cover and mullion.
4.Remove the upper
cover,seal and bottom
cover;
5.Remove the screw fixing
earth wire;
6
6.Tear off the heater and
replace a new one.Then
Install it according to the
steps above.
5
3.Remove the screws on
mullion;
1.Remove the screws on
mullion;
2.Disconnect
the earth wire
and connector;
1
2
3
4
2. After reassembly mullion,run
5-10 minutes,feel surface of the
mullion.If it’s not warm,check
the connection,and reconnect if
necessary.
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