Safety Hose; Location Of Safety Hose; Working Principle - Panasonic NP-6F2MUQNZ-NZ Service Manual

5.10. Safety Hose

5.10.1. Location of Safety Hose

5.10.2. Working Principle

There are two types of Safety Hose, mechanical Aquastop hose and electronic Aquastop hose, which have different principles and
assembly modes.
Mechanical Aquastop safety hose has two layers. If water leak and fill the air space between two layers, the foaming material will
expand and lock the hose. In this situation, the machine might set off E1 alarm.
Electronic Aquastop safety hose also has two layers. But the difference from mechanical is that if water leak and flow on the bottom
tray, the flooding pressure switch on the tray will act, the electromagnetic valve on the hose will cut off the water road and the
machine will set off E4 alarm.
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