REMKO EFS 25-35 - Manual (Page 33)

Error messages
Errors are displayed as shown below, the background lighting is red. The figures in this section show system
examples.
Display (example) Description Solution
An interruption was detected on the probe
input displayed (here: probe input 4).
Check the cables and probes connected
to the probe input.
A short circuit was detected on the probe
input displayed (here: probe input 4).
Check the cables and probes connected
to the probe input.
The domestic hot water target tempera-
ture was not reached. Possible causes:
n The storage tank not heated
n The shut-off valve in the primary cir-
cuit is closed.
n There is air in the pipes
n The primary pump is defective
n The heat exchanger is scaled
n Heat up the storage tank
n Check the shut-off valve
n Bleed the system
n Check the pump
n De-scale the heat exchanger
A short circuit occurred at output R1. Pos-
sible causes:
n The valve is defective
n There is a wiring fault
n Check the valve
n Check the wiring of R1
Output R1 was overloaded.
Cause: The values permitted for R1
according to the name plate were
exceeded continuously, the output was
switched off.
Check the electrical data of the valve,
replace the valve if necessary. R1 is
switched back on automatically.
A short circuit occurred at output R2.
Possible causes:
n The valve is defective
n There is a wiring fault
n Check the valve
n Check the wiring of R2
Output R2 was overloaded. Cause: The
values permitted for R1 according to the
name plate were exceeded continuously,
the output was switched off.
Check the electrical data of the valve,
replace the valve if necessary. R2 is
switched back on automatically.
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