Carrying Out The Flue Gas; Analysis; Troubleshooting 5; Detecting And Rectifying Faults - Vaillant ecoCRAFT exclusive Operating Instructions Manual

Note
The effect of the frost protec-
tion function is that, at cylinder
temperatures below 10 °C, the
domestic hot water generation
is switched on until the water in
the cylinder has reached 15 °C
again.
4.2.3 Switching off heating mode
(with control)
1. Leave the rotary knob for setting the
heating flow temperature at the clock-
wise end stop.
2. Switch heating mode to "OFF" on the
control.
4.2.4 Switching off heating mode
(without control)
▶
Turn the rotary knob for setting the
heating flow temperature to the anti-
clockwise end stop.
◁
Heating mode is switched off.
◁
The product's internal frost protection
function is activated.

4.3 Carrying out the flue gas

analysis

Note
Measurement and inspection work
must only be carried out by the
chimney sweep or competent per-
son.
2 1
1. Switch on the chimney sweep function
by pressing the − (2) and + (1) buttons
for the DIA system at the same time.
0020149575_01 ecoCRAFT exclusive Operating instructions

Troubleshooting 5

◁
Shown in the display: S.Fh = Heat-
ing chimney sweep operation; S.Fb
= Domestic hot water chimney
sweep operation
◁
The product now works at maximum
load for 15 minutes. If you do not
press any buttons for 15 minutes
or if a flow temperature of 85 °C is
reached, the chimney sweep func-
tion is automatically switched off.
2. Take the measurements at the earliest
after three minutes of the product oper-
ating.
3. Unscrew the sealing caps from the
measuring stub pipe.
4. Take the measurement at the measur-
ing stub pipe in the flue gas route.
5. Take the measurement at the measur-
ing stub pipe in the air route.
6. Switch off the chimney sweep function
by pressing the − and + buttons for the
DIA system at the same time.
7. Screw the sealing caps onto the meas-
uring stub pipe.
5 Troubleshooting

5.1 Detecting and rectifying faults

▶
If problems occur whilst operating your
product, you can carry out certain self-
checks with the aid of the table in the
appendix.
Troubleshooting (→ Page 20)
▶
If the product still does not function
without problems after the checks have
been carried out using the table, con-
tact your competent person to rectify
the problem.
15