Maintenance
6 720 643 409 (2010/03)
98
20 Maintenance
We recommend that a function check be performed
regularly by an authorised installer.
B Only use genuine spare parts!
B Refer to the spare parts list when ordering spare
parts.
B Always renew seals and O-rings removed during
servicing or repair work.
During service, the activities described below should be
conducted.
Show alarms
B Check the alarm log (Æ Chapter 16.10).
Function check
B A function check should be performed in connection
with each service (Æ Page 95).
Electrical cable routing
B Check the electrical cable routing with regard to
mechanical damage and replace defective cables.
Check the particle filters for the heating system and
collector system
The filters prevent dirt from entering the heat pump. If
they are clogged, they can cause malfunctions.
B Turn off the heat pump.
B Close the valve.
B Loosen the lid.
B Remove the circlip with the circlip pliers.
B Pull the filter out and clean it, if necessary, under
running water.
Fig. 63
B Put the parts back again in reverse order.
DANGER: Risk of electric shock!
B Switch off the main power supply before
starting work on the electrical part.
6 720 613 623-05.1R