GB
- 20 -
11. Troubleshooting guide
Faults Cause Remedy
Motor fails to start
up
- No mains voltage
- Pump rotor blocked -thermostat
switched o
- Check voltage
- Dismantle and clean pump
No intake - Intake valve not in water
- Pump chamber without water con-
nection
- Air in intake line air-tight
- Intake valve leaks
- Strainer (intake valve) blocked
- Max. suction height exceeded
- Immerse intake valve in water
- Fill water into intake
- Make sure intake line is close
- Clean intake valve
- Clean strainer
- Check suction height
Inadequate delivery
rate
- Suction height too high
- Strainer dirty
- Water level falling rapidly
- Pump performance diminishedby
contaminants part
- Check suction height
- Clean strainer
- Immerse intake valve deeper
- Clean pump and replace wearing
Thermostat swit-
ches pump o
- Motor overloaded - friction caused
by foreign substances too high
- Dismantle and clean pump. Prevent
intake of foreign substances (fi lter)
Anl_GC_GP_842_ECO_SPK9.indb 20Anl_GC_GP_842_ECO_SPK9.indb 20 24.10.2018 16:05:4924.10.2018 16:05:49
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