Faults Table - Wilo -Economy MHIE serie Einbau- Und Betriebsanleitung

10.1 Faults table

All incidents mentioned hereafter will have the
following effect:
• Deactivation of the SBM relay (when parameter-
ised in "available transfer" mode).
• Activation of the SSM relay "failure transfer"
when the max. quantity of one malfunction type
is reached within a 24-hour
• Lighting of a red LED.
Time
Ramp time before the
Error before error
code signalling of is taken into
error account after
signalling
E001 60 s 0 s
(0.55 to
7.5 kW)
300 s
E004
~5s
(E032)
(11 to 22 kW)
0 s
E005
~5s 300 s
(E033)
E006 ~5s 300 s
E007 0 s 0 s
E010 ~5s 0 s
E011 15s 0 s
E020 ~5s 0 s
E023 0 s 0 s
E025 0 s 0 s
E026 ~5s 0 s
E030
~5s 0 s
E031
E042 ~5s 0 s
E050 60 s 0 s
E077 0 s 0 s
E--- 0 s 0 s
Installation and operating instructions – Wilo-Economy MHIE
period.
Waiting time
Max.
before
error in
automatic
24 h
reactivation
The pump is overloaded,
malfunctioning
60 s 6
The pump is obstructed by
foreign bodies
(0.55 to 7.5 kW)
0 s if error
deleted
The power supply to the
6
converter is in undervoltage
(11 to 22 kW)
300 s
0 s if error The power supply to the
6
deleted converter is at overvoltage
0 s if error
6 A power supply phase is missing Check the power supply
deleted
The converter operates as a
0 s if error Un-
generator. Warning, no pump
deleted limited
deactivation
Unlimited 1 The pump is blocked
The pump is deactivated or is
60 s 6
running dry
The motor is heating up
300 s 6
Room temperature above
product characteristics
60 s 6 The motor is short-circuited
A phase of the motor is missing Check the connection between the motor
Unlimited 1
The motor's temperature
300 s 6 sensor is faulty or has a bad
connection
(0.55 to 7.5 kW)
The converter is heating up
0 s if error
deleted
6
Room temperature above
(11 to 22 kW)
product characteristics
300 s
Unlimited 1 The sensor cable (IN1) is cut
0 s if error Un- The BMS communication is
deleted limited faulty
24 V power supply voltage of
Unlimited 1
sensors faulty
Unlimited 1 Converter internal malfunction Call customer service
Faults
Possible causes
Density and/or viscosity of the pumped
fluid too high
Dismantle the pump, replace the
malfunctioning components or clean it
Check the voltage at the converter
terminals:
• malfunction if power supply > 480 V
(0.55 to 7.5 kW)
• malfunction if power supply > 506 V
(11 to 22 kW)
Check the voltage at the converter
terminals:
• malfunction if power supply > 506 V
The pump has switched direction, check
the impermeability of the valve
Dismantle pump, clean it and replace the
faulty parts. Possible mechanical motor
malfunction (roller bearings)
Re-prime by filling the pump (See § 9.3).
Check the impermeability of the foot valve
Clean the cooling ribs at the back and
under the converter, as well as the fan cap
Improve the ventilation of the premises
Remove the motor-converter from the
pump and check it or replace it
and the converter
Remove the motor-converter from the
pump and check it or replace it
Clean the cooling ribs at the back and
under the converter, as well as the fan cap
Improve the ventilation of the premises
Check for the correct power supply and
wiring to the sensor
Check the connection
Check the sensors and their connections
Waiting
time
Remedies
before
reset
300 s
(0.55 to
7.5 kW)
0 s
(11 to
22 kW)
300 s
0 s
0 s
0 s
60 s
300 s
300 s
60 s
60 s
300 s
300 s
60 s
300 s
60 s
60 s
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