To Next PageTo Next PageWhat does it mean when the Wilo Control MR-Lift Controller displays 'Low voltage L1'?
If the Wilo Controller displays 'Low voltage L1', it indicates that the voltage in phase L1 has fallen below 190V. Once the cause is resolved, the pump will be ready to operate.
Why does my Wilo Control MR-Lift pump keep turning off due to overcurrent?
If the Wilo Controller pump turns off due to overcurrent, it means the pump current is higher than the 'Maximum current' value set in the controller. Turn off the pump and check the 'Maximum current' setting. Identify and resolve the cause of the overcurrent.
How to fix a Wilo Control MR-Lift Controller when it shows a dry run error?
If the Wilo Controller displays a dry run error, it indicates that the pump current is lower than the value set for 'Minimum current', suggesting the pump is running without liquid or the delivery pipeline is clogged. Check the 'Minimum current' setting, the liquid level in the tank, and inspect the delivery pipeline for clogs.
What to do if Wilo Control MR-Lift shows overcurrent for too long?
If the Wilo Controller shows an overcurrent for an extended period, causing the pump to shut down, address the cause of the overcurrent. Once resolved, press the 'OK' key to make the pump ready to operate again.
What to do if float switches work in the wrong sequence in Wilo Control MR-Lift?
If the float switches are working in the wrong sequence, check the float connection, how high they are hung in the tank, and whether they are tangled. Also, inspect them for damage and ensure they switch on correctly. Clear the failure message by pressing the 'OK' key.
What to do if the Wilo Control MR-Lift shows 'High level float'?
If the Wilo Controller displays 'High level float', and the float switch has been connected as additional protection, check if the message 'High level' is displayed at the same time. If not, check how high the float is hung in the tank. Otherwise, address the issue as you would for a standard 'High level' status.
What does it mean when the Wilo Controller shows 'Low voltage L2, L3'?
If the Wilo Controller displays 'Low voltage L2, L3', it signifies that the voltage in phases L2 and L3 has fallen below 190V. After the underlying cause is resolved, the pump will be ready to operate.
What does 'Low voltage L2' mean on my Wilo Control MR-Lift Controller?
If the Wilo Controller displays 'Low voltage L2', it means that the voltage in phase L2 has fallen below 190V. After the cause is resolved, the pump will be ready to operate.
What causes a '4-20mA failure' on a Wilo Controller?
A '4-20mA failure' on the Wilo Controller indicates that the external sensor current is lower than 3mA. Inspect the external sensor and its connecting wire.
What does 'Thermal fault 1' mean on my Wilo Control MR-Lift?
If the Wilo Controller shows 'Thermal fault 1', it means the pump's acceptable temperature has been exceeded, and the contacts of the thermal protection connected to terminals 20, 21 are open. Find and eliminate the cause. If no thermal protection is connected to terminals 20, 21, switch off 'Therm. protect1' from the menu. Note that after the pump cools down, the fault will automatically reset, and the pump will be ready to work again.
General| Brand | Wilo |
|---|---|
| Model | Control MR-Lift |
| Category | Controller |
| Language | English |
Overview of device features, including LCD display, alarms, and protection mechanisms.
Detailed technical data covering power, operating conditions, pressure range, and dimensions.
Description of the device's control interface, including navigation keys, display, and operational buttons.
Instructions for physically mounting the device securely in an upright orientation.
Guidance on electrical connections for power supply, pump, and sensors according to terminal markings.
