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17.0 Fault Finding
56
© Baxi Heating UK Ltd 2011
THERMISTOR
Replace thermistor.
Wiring from PCB to
thermistor faulty.
YES
NO
NO
YES
Replace PCB.
Unplug
thermistor,
Is thermistor resistance between
0.5kë & 20kë ?
Plug in
thermistor, leave
8-way connector unplugged.
Is resistance at D between
0.5kë & 20kë ?
D
Viewed from
Wire Entry end
Lights
On On
*