HAKO Scrubmaster B 120 R Service Booklet page 80

10. Service messages
Service-Code
1.4.6.3. Suction motor over current or short circuit
1.5.4.1.
1.7.4.1. Chemical dosing agent problems
3.1.1.2. Fleetrekorder communication interruption
Battery charger communication to machine
3.1.1.d.
3.2.6.5.
3.2.6.6.
Description
Malfunction water valve
control unit interrupted
Backup battery weak
Backup battery empty
Remedy
Short circuit in the suction motor or in it´s wiring
Water valve over current, interruption in the wiring or short
circuit to battery plus
Chemcal dosing agent over current, interruption in the wiring
Check wiring between machine control unit and Fleetrekorder
Check wiring between -G10.X7 and -A01.X4
Replace backup battery; Type CR2032
Replace backup battery; Type CR2032
Sheet 80