You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
9 Replacement of Parts9.13 CH Thermistora) Gain access by following step 9.1(b).b) Remove the sealed chamber front panel by removing the two socket headfixing screws at the bottom and hinge upwards unhooking from the top fixinglugs. Place the cover in a safe position.c) Isolate the central heating circuit by closing the flow and return valves. Drainthe flow pipe using the drain point situated in the lower part of the flow pipeunderneath the heat exchanger at the bottom left hand side.d) Disconnect the two electrical connections from the thermistore) Slide out the clip securing the thermistor in position and pull out the thermistor.NOTE: There may be a small discharge of water hence precautions should be taken.f) Replace the thermistor and reassemble in reverse order.g) Finally, ensure that the outer casing is secured in position and carry out anignition and temperature control check.61
Change language