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INSTRUCTION REF: IN145
ISSUE No. 2
DATE 25.02.09
Page 9 of 13
www.parry.co.uk
Over temperature stat operates
Is the temperature over 220° C
Yes
No
Does the control
stat operate on
temp. rise when
set point is low
(100°C
Replace
control stat
Yes
No
Check calibration
of control stat. See
Installation instr. for
details
Replace
Control stat
Manually reset
overtemp. stat