Potterton Promax FSB 30 HE Installation & Service Instructions Manual page 56
Floor standing fanned flue condensing boiler
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Also See for Promax FSB 30 HE:
- User manual (8 pages) ,
- Installation and servicing instructions (52 pages)
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THERMISTOR
Unplug
thermistor,
Is thermistor resistance between
0.5kΩ & 20kΩ ?
YES
Plug in
thermistor, leave
8-way connector unplugged.
Is resistance at D between
0.5kΩ & 20kΩ ?
YES
Replace PCB.
56
© Baxi Heating UK Limited 2010
Lights
On
*
On
NO
Replace thermistor.
NO
Wiring from PCB to
thermistor faulty.
17.0
Fault Finding
Viewed from
Wire Entry end
D
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