Overheat Thermostat or
thermostat sensor...
I am attaching the pdf document I found
(diagram on Page 30, items 16 & 17)...
http://www.freeboilermanuals.com/assets/pdf/baxi_disc/SOLO%203%20%2030-80PF%20SYSTEM.pdf
Several options... (most likely 71 & 72 ... Page 44)
Either unit could be defective... or legitimately REACTING
to a
PUMP or
FAN failure...
(or faulty wire to the control board)
The "LOGIC" on your
control board is looking
specific temperature within a MINUTE...
Failing to see the
Overheat Thermostat or
thermostat sensor... in a specific state ... the logic
will cut the fuel...
The "MANUAL" includes a trouble finding guide
(APPROXIMATELY
after PAGE 44)...
Save the SWAPPED OUT PARTS AS
GOOD SPARES
and buy yourself SPARE "sensors" so they will never
fail again).
Hope this helps.
Carnac the Magnificent
wocester 12 14 oil heatslave keeps tripping main trip when i turn on hot water stat
How do I open the remoter to change the batteries it's for my baxi boiler an controls my heating
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