Xylem ECOCIRC - Manual (Page 18)

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8. Maintenance/Disassembly
Pumps are subject to wear. If the pump is blocked (see section 9) or
grinding noises are audible, check the pump and replace it if necessary.
Procedure:
- Disconnect the pump from the mains.
- Shut off supply and drain lines. If there are no shut-off
devices, drain the system so that the fluid level is
beneath that of the pump.
- Loosen the union nut by hand or with an appropriate
tool (such as a strap wrench) and carefully pull the
motor out of the pump housing.
Residual water may leak out of the rotor cavity. Prevent
the pump's electrical connection from getting wet.
For figure 5:
- Carefully but firmly pull the rotor / impeller upward by hand and remove
it.
- If necessary, remove foreign bodies and impurities/deposits with
appropriate agents. Reinsert the rotor / impeller.
- The bearing is worn if the rotor / impeller cannot be freely moved or if
wear marks are visible. In this case, replace the rotor, the pump motor,
or the entire pump.
9. Operating signal light / Troubleshooting / Warranty
Work on electrical parts may only be performed by
authorized electricians.
When the electrical connection to the pump is properly made and the
pump is powered, a white or blue light (depending on the actual operation
mode) is constantly lit in the knob of the Ecocirc pump.
Mode selection: turn the knob to the end position below 1 then turn it
back within 5 sec.
Constant Speed: white light; Proportional Pressure: blue light
Faults are indicated as follows:
Operating LEDs /
Blinking light
Cause Solution
Off • Pump is not connected
or is incorrectly
connected
• Power failure
• Check connection
• Check mains + circuit
breaker
ATTENTION