Fronius Ohmpilot Operating Instructions Manual page 128

924 ES could not achieve
minimum temperature
within 5 hours.
925 Time not synchronised
926 No connection to inver-
ter
927 Ohmpilot overtempera-
ture
928 Ohmpilot undertempe-
rature
Residual current-opera-
ted circuit breaker is
triggered
Ohmpilot is not using
any surplus
Ohmpilot is using only
part of the surplus
power
Power at the feed-in
point is not always ad-
justed to 0
After switch-on, the
green LED makes 2 long
flashes
128
ES switched off/defective. ES not con-
nected to Ohmpilot. TS incorrectly
mounted. Heating system not dimen-
sioned properly (hot water consumpti-
on too high, etc.). TS faulty.
Time not synchronised in the last 24
hours. Router has been switched off/
reconfigured.
No connection between inverter and
Ohmpilot. Inverter switched off. The
Ohmpilot also needs a connection to
the inverter at night. Router switched
off/faulty/reconfigured. Night switch-
off function enabled on the inverter.
Poor WLAN connection between in-
verter or Ohmpilot and router.
Ambient temperature too high (>40
°C). The output of the heating element
is too high Ventilation slots are cover-
ed.
Ambient temperature too low (<0 °C).
N and L mixed up.
Thermostat on heating element has
switched off. Safety thermostat (STC)
on the heating element has triggered.
Heating element power is lower than
surplus power.
Load and generation fluctuations re-
quire a few seconds to settle down.
Thermostat on heating element has
switched off. Heating element is not
connected.
Switch on ES. Connect
ES to relay 1. Fit TS
above the heater batte-
ry of the ES. Check mi-
nimum temperature
setting. Replace TS.
Check connection bet-
ween Ohmpilot and in-
verter. Switch on router.
Check network settings.
Check connection.
Switch on the inverter.
Update the software.
Switch Ohmpilot and
inverter off and on
again. The night switch-
off function of the in-
verter must be disabled.
On the inverter display,
set night mode to ON
under "SETUP/Display
settings/Night mode"
menu. Switch on router.
Reposition the WLAN
antenna in a better lo-
cation. Check network
settings.
Install Ohmpilot in a
cooler location. Use a
heating element with a
permissible output. Un-
cover the ventilation
slots.
Install Ohmpilot in a
warmer location. Instal-
lation outdoors is not
permitted.
Connect N and L cor-
rectly.
Wait until thermostat
switches on again. Reset
safety thermostat.
Select a larger heating
element where necessa-
ry
Briefly turn up the ther-
mostat for the power
measurement. Connect
the heating element.