Viessmann VITOTRONIC 200 Service Instructions Manual page 166

Diagnosis
Refrigerant circuit
Message Meaning
code
0A Short circuit/lead break,
S
low pressure sensor (suc-
tion gas pressure sensor)
0E Short circuit/lead break,
S
liquid gas temperature
sensor
10 Compressor switched off
H
13 Vitocal 333-G:
S
Communication error
15 Vitocal 333-G:
S
Inverter and compressor
incompatible
18 Vitocal 333-G:
S
Compressor fault (general
message)
1A Safety chain interrupted,
S
compressor blocked
1E EEV PCB faulty
S
1F Parameter "Output com-
—
pressor stage 5030" not
set correctly
20 Condensing pressure too
H
high (control high pres-
sure)
21 Inadequate evaporation
H
pressure (low pressure
fault)
22 Excessively high hot gas
H
temperature
24 Compressor failed to start:
S
Message "88" has occur-
red 3 times successively.
29 Condensing temperature
H
too high
2B Max. suction gas pressure
H
exceeded
166
(cont.)
Heat pump characteris-
tics
Compressor OFF
Compressor OFF
Compressor OFF
Compressor OFF
Subject to other messages
Compressor OFF
Compressor OFF
Compressor OFF
Compressor OFF
Compressor OFF
Compressor OFF
Compressor OFF
Compressor OFF
Compressor OFF
Measure
Check current at connection J10 (P1)
of the EEV PCB: See "EEV PCB
[4-6] / [4-7]". Take refrigerant R410A
into account.
Check resistance value (NTC 10 k
at connection J13 (T7) of the EEV
PCB: See "EEV PCB [4-6] / [4-7]".
No action required
Check Modbus connecting cable, in-
verter EEV PCB.
—
Check the DIP switches on the EEV
PCB are set correctly. Observe label
for correct setting.
See further messages regarding the
compressor and inverter (message
code "80" and above).
Check safety chain: See connection
■
and wiring diagram.
Check plug for compressor controller
■
on the EEV PCB: See "EEV PCB
[4-6] / [4-7]".
Replace EEV PCB.
Set "Output compressor stage
5030" according to the type plate.
Then switch off the heat pump control
unit. Wait 1 min. Then restart the heat
pump control unit.
As for "D4 Control high pressure":
See "Message overview" for the heat
pump control unit.
As for "D3 Low pressure": See "Mes-
sage overview" for the heat pump con-
trol unit.
Have a specialist check the com-
■
pressor parameters ("5xxx").
Check whether the coding card
■
matches the heat pump. To check in-
formation, see "System information".
Check compressor drive.
■
Vitocal 333-G:
■
Check inverter.
As for "D4 Control high pressure":
See "Message overview" for the heat
pump control unit.
Check amount of refrigerant. Adjust
■
amount if required.
If fault persists, notify a specialist.
■
)
Ω