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Short Circuit Test
• Connect one cable of the test device to the resistance terminal. The other cable must be in
contact with the tooth part of the heating component.
• No resistance value must be read on the test device. Otherwise, the resistance must be
replaced.
5.2 Malfunction chart
MALFUNCTION
No hot water can be
drawn.
(Only cold water)
Insufficient hot water
production.
Excessive hot water or
steam generation.
It takes too long for the
thermostat to reactivate.
Heating time is long,
energy consumption is too
much and thermosiphon
cannot
reach maximum
REASON OF
MALFUNCTION
* Power feed might be cut off.
*Thermostat might not be
running.
* Thermostat sensor might not
be placed correctly on the
heating component.
* Limit thermostat might be
cutting off the circuit.
* The V-automate at the feed
input might not be open.
* Resistance might not be active
or there might be a short circuit.
* There might be an open
circuit in resistance feed cables.
* Hot/cold water pipe
connection might be clogged.
* Connections might be wrong.
* Thermostat setting might be
incorrect or might be stuck.
* There might be calcification
or mud forming in the tank.
* The tank connection of the
thermostat might not be correct.
* Thermostat might have lost its
accuracy.
* Hot water system might be
leaking.
* Resistance might be damaged.
12
REMOVAL OF
MALFUNCTION
*Ensure power to the
thermosiphon.
* Set the thermostat temperature
adjustments correctly.
* Remove and reattach the
thermostat sensor.
* Press the limit thermostat reset
button and bring it to active
position.
* Bring the V-automate at the feed
input to turned on position.
* Replace the resistance and
gaskets.
* Check the current consistency in
power feed cables, sockets and
connection terminals.
* Connect the pipes correctly.
* Ensure the plumbing is in
accordance with the schematics.
* Set the thermostat correctly or
replace the thermostat.
* Clean the scale or mud.
* Place the thermostat sensor
correctly.
* Replace the thermostat with a
new one.
* Locate and mend the leak.
* Replace the resistance.
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