Alde Compact 3020 Servicehandbuch Seite 11

3:7 SENSOR REPLACEMENT
1. Remove the service hatch on the boiler.
2. Remove the 6-pole terminal block (Fig. 9A) from the
circuit board.
3. Remove the connection cables from their groove
(Fig. 9B) on the circuit board attachment.
4. Remove the nut which holds the operating thermostat
(blue cable) (Fig. 10B) and overheating protection (red
cable) (Fig. 10A) from the boiler body.
5. Remove the nut which holds the domestic hot water
thermostat (grey cable) (Fig. 10C) on the boiler body.
6. Remove the sensors together.
7. Fit the sensors in reverse order;
tighten the nuts to a torque of 0.6 Nm.
8. Fit the service hatch and test run the boiler.
Fig. 9.
B
Fig. 10.
B
B
A
C
A
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