8.
Remove plate-type heat exchan-
ger
F
.
Note
During removal, small amounts of
water may trickle out and escape
from the removed plate-type heat
exchanger.
9.
Check the connections on the
DHW side for scaling and, if
required, flush or replace the
plate-type heat exchanger.
10.
Check the connections on the
heating water side for contamina-
tion and, if required, flush or
replace the plate-type heat
exchanger.
11.
Lubricate the new gaskets/seals.
Install in reverse order with new
gaskets.
Check the temperature limiter
Repairs
(cont.)
107
Troubleshooting
5592
883
GB
Service
Summary of Contents for VITODENS 343-F WS4A
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