Technical Information
48
PW 6xx7
MDU fault # Possible cause Notes Indication in EW 235
display
Fault/Information
F4038 SER_MSG_WASSER
_NIVEAU_KLEIN
Water level less than that
programmed. If water level
remains below minimum
requirement, heating will not be
activated.
Information
F4039 Heating defect,
SER_MSG_HEIZUN_
FEHLER
No temperature change
registered by control.
Information
F4040 Heater power too low,
SER_MSG_HEIZUN
G_ZU_KLEIN
Temperature rise rate too low
even with heating activated.
Check heater elements, relay,
connections, phases or steam
pressure, circulation pump,
fuses, NTC sensors.
Information
F4041 Heater power too
high,
SER_MSG_HEIZUN
G_ZU_GROSS
Temperature increase during
heating too high. Check
controls, heater elements, relay,
connections, voltage or steam
pressure, valves, NTC sensors.
Information
F4042 Relay 1K1/1
defective,
SER_MSG_SCHUET
Z_1_FEHLER
Relay 1K1/1 is defective. No
heating-dry protection
registered.
Information
F4043 Relay 2K1/1
defective,
SER_MSG_SCHUET
Z_2_FEHLER
Relay 2K1/1 is defective. No
heating-dry protection
registered.
Information
F4044 SER_MSG_NTC_1_
KURZ
Resistance of NTC 1 less than
lowest permissible figure
Information
F4045 SER_MSG_NTC_1_
OFFEN
Resistance of NTC 1 greater
than highest permissible figure
Information
F4046 SER_MSG_NTC_2_
KURZ
Resistance of NTC 2 less than
lowest permissible figure
Information
F4047 SER_MSG_NTC_2_
OFFEN
Resistance of NTC 2 greater
than highest permissible figure
Information
F4048 SER_MSG_ABL_VE
NTIL_DEFECKT
Drain valve cannot be activated Information
F4049 SER_MSG_ABL_VE
NTIL_VERSTOPFT
Drainage rate too low Information
F4050 SER_MSG_ABL_VE
NTIL_UNDICHT
Drainage valve leak. Water
level decrease.
Information
F4051 SER_MSG_SLT_FU_
COM_FEHLER
No response from frequency
converter EFU 235
Information
F4052 SER_MSG_MFM1_F
EHLER
No response from multifunction
module EZL 235 with coding 1
Information
F4053 SER_MSG_MFM2_F
EHLER
No response from multifunction
module EZL 235 with coding 2
Information
F4054 SER_MSG_MFM3_F
EHLER
No response from multifunction
module EZL 235 with coding 3
Information
F4055 SER_MSG_MFM4_F
EHLER
No response from multifunction
module EZL 235 with coding 4
Information
F4056 SER_MSG_MFM5_F
EHLER
No response from module EZL
235 with coding 5
Information
F4057 SER_MSG_TACHO_
FEHLER
Tachogenerator signal missing Information
F4058 SER_MSG_TACHO_
SPG_KLEIN
Tachogenerator signal too small Information
F4059 SER_MSG_TUERFR
EIGABE_1
No door release signal from
EFU 235
Information
F4060 SER_MSG_TUERFR
EIGABE_2
No door release signal from
EFU 235
Information
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