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Installation and Servicing
SECTION 3 - SERVICING
3.30 DHW FILTER & DHW FLOW REGULATOR CLEANING / REPLACEMENT
1. Refer to Sections 3.8.
2. Drain down the boiler. Refer to Sections 3.22.
3. Unplug the electrical lead.
4. Unscrew the thermistor (to facilitate removal a
13mm socket spanner should be used).
5. Fit the new thermistor using the sealing
washer provided.
6. Reassemble in the reverse order.
7. Rell the boiler. Refer to Section 2.16.
8. Check that the boiler operates in both DHW &
CH modes.
3.31 FLOW THERMISTOR REPLACEMENT
4
3
1. Refer to Section 3.8.
2. Drain the DHW system. Refer to Section
3.22.
3. Turn the housing anti clockwise and pull
forward to remove the cartridge.
4. Using a pair of pliers, pull out the plastic
lter/ow regulator.
5. Clean or replace lter as necessary.
6. Reassemble in reverse order.
7. Rell the boiler.
8. Check that the boiler operates in both
DHW & CH modes.
3
4
SERVICING