Status Codes; Code Description - Fronius Ohmpilot Instructions De Service

Status Codes

Status codes Sending of errors
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Code Description

906 Heating element 1 faulty -
short circuit L1
907 HE 1 - Overload on L2
908 HE 1 - Overload on L3
909 HE 1 faulty - L1 highly re-
910 sistive
911 HE 1 faulty - L2 highly re-
sistive
HE 1 faulty - L3 highly re-
sistive
912 HE 2 faulty - short circuit
L1
913 HS 2 - Overload on L2
914 HE 2 - Overload on L3
915 HE 2 faulty - L1 highly re-
916 sistive
917 HE 2 faulty - L2 highly re-
sistive
HE 2 faulty - L3 highly re-
sistive
918 Relay 2 faulty
919 Relay 3 faulty
920 TS short circuit
921 TS not connected or faulty
922 60 °C for legionella pre-
vention could not be
achieved within 24 hours.
923 Minimum temperature
could not be achieved wit-
hin 5 hours
924 ES could not achieve mini-
mum temperature within 5
hours.
Errors are saved in the Datamanager 2.0 and can be sent via Solar Web.
Possible error outputs (as at 07/12/2015):
Cause
The load on L1 is higher than 3 kW. Short
circuit on L1.
Current on L2 greater than 16 A.
Current on L3 greater than 16 A.
No current is flowing through L1/L2/L3.
L1/L2/L3 of HE 1 faulty. Phase L1/L2/L3
interrupted.
The load on L1 is higher than 3 kW. Short
circuit on L1.
Current on L2 greater than 16 A.
Current on L3 greater than 16 A.
No current is flowing through L1/L2/L3.
L1/L2/L3 of HE 2 faulty. Phase L1/L2/L3
interrupted.
Relay R2/R3 sticking.
TS input resistance less than 200 Ohm.
No PT1000 TS connected. TS defective.
No TS connected (input resistance greater
than 2000 Ohm). TS is activated (should
be deactivated). TS cable defective. TS
defective. No PT1000 TS connected.
ES is switched off/faulty. (922 only). TS
has not been fitted correctly. Heating sys-
tem has not been dimensioned properly
(hot water consumption too high, etc.).
HE/TS faulty.
ES switched off/defective. ES not connec-
ted to Ohmpilot. TS incorrectly mounted.
Heating system not dimensioned properly
(hot water consumption too high, etc.). TS
faulty.
Remedy
Check heating element 1.
Check wiring.
Check HE 1 and replace if
necessary.
Check L1/L2/L3. Check
L1/L2/L3 connections.
Check HE 2. Check wi-
ring.
Check HE2 and replace if
necessary.
Check L1/L2/L3. Check
L1/L2/L3 connections.
Replace Ohmpilot.
Check cable and connec-
tions on TS cable. Re-
place TS.
Connect TS to device. De-
activate TS via the web-
site (if sensor not nee-
ded). Check TS cable.
Replace TS.
Switch on ES (922 only).
Fit TS above the HE (in
the protective tube). De-
activate legionella preven-
tion via the website. Re-
place HE/TS.
Switch on ES. Connect
ES to relay 1. Fit TS abo-
ve the heater battery of
the ES. Check minimum
temperature setting. Re-
place TS.
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