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Installation and operating instructions • Wilo-Control EC-L • Ed.04/2022-09 49
NOTICE
Unauthorised work or structural changes are prohibited!
Only maintenance and repair work described in this manual may be car-
ried out. All other works and any alterations to the construction may only
be carried out by the manufacturer.
10.1 Maintenance intervals
Regular
• Clean switchgear.
Annually
• Check electro-mechanical components for wear.
After 10 years
• General overhaul
10.2 Maintenance tasks
Cleaning switchgear
✓ Switch off switchgear.
1. Clean switchgear with a damp cotton cloth.
Do not use any aggressive or scouring cleaners or fluids!
Check electrical-mechanical components for wear
Have electrical-mechanical components checked for wear by an electrician. If wear is as-
certained, have the affected components replaced by an electrician or by the Wilo Cus-
tomer Service.
General overhaul
During a general overhaul, all of the components, wiring and the housing are checked for
wear. Defective or worn components are replaced.
10.3 Maintenance interval display
Fig.72: Maintenance interval display
The switchgear has an integrated maintenance interval indicator. Once the set interval has
expired, “SER” on the main screen blinks. The next interval starts automatically by resetting
the current interval. The function is disabled at the factory.
10.3.1 Maintenance interval – Activate
the interval indicator
Fig.73: Activating the maintenance interval
✓ Parameter input enabled: Menu 7.01 shows on.
1. Press the operating button for 3s.
⇒ Menu 1.00 appears.
2. Turn the operating button until menu 7 appears
3. Press operating button.
⇒ Menu 7.01 appears.
4. Turn the operating button until menu 7.07 appears.
5. Press the operating button.
6. Set desired interval:
- 0 = interval display off.
- 0.25 = quarterly
- 0.5 = six-monthly
1 = annually
2 = every two years
7. Press the operating button.
⇒ Value is saved.
▶ Interval display is activated.
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