Viessmann VITOTRONIC 200 Service Instructions Manual page 169

Refrigerant circuit
(cont.)
Message Meaning
code
81 Vitocal 333-G:
H
Torque of compressor
drive too high
82 Vitocal 333-G:
H
Mains voltage too high or
intermediate circuit volt-
age too high
83 Vitocal 333-G:
H
Mains voltage too low or
intermediate circuit volt-
age too low
84 Vitocal 333-G:
H
Temperature at inverter
(IGBT module) too high
86 Vitocal 333-G:
H
Inverter power consump-
tion (IGBT module) per-
manently too high
88 Vitocal 333-G:
S
Compressor drive blocked
for more than 5 s.
89 Vitocal 333-G:
S
Inverter processor or da-
■
ta store faulty
A-D converter fault
■
Instrument transformer
■
faulty
8F Vitocal 333-G:
S
Inverter switched off
Heat pump characteris-
tics
Compressor OFF
Compressor OFF
Compressor OFF
Compressor OFF
Compressor OFF
Compressor OFF
Compressor OFF
Compressor OFF
Measure
Test coil resistance at compressor. Re-
sistance on all windings must be simi-
lar ( 10 %). For m use a suitable
± Ω
measuring device.
Test mains voltage at mains terminals:
If mains voltage is too high (+10 %),
clarify the cause in consultation with
the power supply utility.
Test mains voltage at mains terminals:
If mains voltage is too low (
clarify the cause in consultation with
the power supply utility.
Check inverter heat sink for contami-
nation. Replace inverter if necessary.
Test coil resistance at compressor. Re-
sistance on all windings must be simi-
lar ( 10 %). For m use a suitable
± Ω
measuring device.
Test coil resistance at compressor.
■
Resistance on all windings must be
similar ( 10 %). For m
± Ω
ble measuring device.
Replace compressor and/or inverter
■
if necessary.
Replace inverter.
Check electrical connecting cable be-
tween inverter and compressor. Re-
place the connecting cable if necessa-
ry: See "Connection and wiring dia-
gram".
Diagnosis
10 %),
–
use a suita-
169