Condensate Trap Cleaning; Checking The Mixer Diaphragm - Bosch ZBR16-3A Installation And Service Instructions Manual

86 | Inspection and maintenance

14.1.7 Condensate trap cleaning

B Remove condensate trap (steps 1 and 2) and check heat
exchanger orifice for clear passage.
1
Fig. 91 Removing the condensate trap
B Remove and clean the condensate trap lid.
B Check condensate hose and clean if necessary.
B Fill the condensate trap with approx. 1 cup (1/4 l) of
water and reinstall it.
6 720 643 068 (2011/06)

14.1.8 Checking the mixer diaphragm

B Open the mixer unit.
B Carefully remove the diaphragm from the fan air intake
and check for contamination and cracks.
2
Fig. 92 Opening the mixer unit
B Insert the diaphragm into the fan connector. Ensure the
diaphragm is oriented properly.
6 720 641 933-93.1o
B Close the mixer unit.
3
1
2
6 720 641 933-94.1o
The diaphragm flaps must open upwards.
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