Troubleshooting 5
0020245033_00 ecoTEC plus Operating instructions 11
5. Turn the filling cock on slowly and allow water to flow in
until the required filling pressure has been reached.
6. Close the heating water supply.
7. Purge all radiators.
8. Check the filling pressure in the display.
9. Top up with more water if necessary.
10. Close the filling cock.
11. Return to the basic display. (→ Page 8)
4.17 Protecting the heating installation against
frost
4.17.1 Frost protection function
Caution.
Risk of material damage due to frost.
The frost protection function cannot guaran-
tee flow through the entire heating installa-
tion, which means that parts of the heating
installation may freeze and therefore become
damaged.
▶ During a period of frost, ensure that the
heating installation remains in operation
and that all rooms are sufficiently heated,
even when you are away.
Note
To keep the frost protection devices active, you
should switch your product on and off using the
controller, if one is provided.
If the heating flow temperature falls below 5 °C when the
on/off button is on, the product comes into operation and
heats the circulating water to approx. 30 °C on both the heat-
ing side and the hot water side (if available).
4.17.2 Draining the heating installation
You can guarantee frost protection during very long switch-
off times by draining the heating installation and the product
completely.
▶ Consult a competent person about this.
5 Troubleshooting
5.1 Detecting and rectifying faults
▶ If faults occur, proceed in accordance with the table in
the appendix.
Troubleshooting (→ Page 14)
▶ If you have been unable to eliminate the fault using the
measures specified, or fault messages (F.xx) appear,
consult a competent person.
5.2 Calling up (Live monitor) status codes
▶
Press and at the same time.
Status codes – Overview (→ Page 13)
◁ The current operating status (status code) is shown
on the display.
6 Care and maintenance
6.1 Maintenance
An annual inspection of the product carried out by a compet-
ent person is a prerequisite for ensuring that the product is
permanently ready and safe for operation, reliable, and has a
long working life.
6.2 Caring for the product
Caution.
Risk of material damage caused by un-
suitable cleaning agents.
▶ Do not use sprays, scouring agents, de-
tergents, solvents or cleaning agents that
contain chlorine.
▶ Clean the casing with a damp cloth and a little solvent-
free soap.
6.3 Reading maintenance messages
If the symbol is shown on the display, the product requires
maintenance work.
The product is not in fault mode but continues to operate.
▶ Consult a competent person about this.
▶ If the water pressure is flashing at the same time, simply
add more heating water.
6.4 Checking the condensate drain pipework
and tundish
The condensate drain pipework and tundish must always be
penetrable.
▶ Regularly check the condensate drain pipework and tun-
dish for faults and, particularly, for blockages.
You must not be able to see or feel any obstructions in the
condensate drain pipework and tundish.
▶ If you notice a fault, have it rectified by a competent per-
son.
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