HAKO Scrubmaster B 120 R Service Booklet page 74

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9.
Drive
9.2 Service codes DMC control unit
Code
Name
Soft error faults - immediately stops pulsing - Requires a neutral recycle action to reset fault
15
Low voltage
16
Not used
17
Low voltage
18
High Side Mosfet short circuit
19
Not used
Description
internal 12V supply too low
--
Battery voltage too low
Short circuit to battery plus
--
Remedy
Check charging level of the battery
--
Check charging level of the battery
Check Motor insulating; Faulty Drive Control Unit.
--
Sheet 74

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