9.0 Fault Analysis
B.
Product Overheats
1.
The HEAT light goes
OFF with the
instrument switch.
The controller
shows a very high
temperature.
The controller is faulty.
The controller
shows a low
temperature.
The thermocouple may have
been shorted out or may
have been moved out of the
furnace.
The thermocouple may be
connected the wrong way
around.
The controller may be faulty.
2.
The HEAT light does
not go off with the
instrument switch
and the fault persists
when a 2 A control
fuse is removed from
its fuse-holder.
The power
thyristor has failed
"ON".
Check for an accidental wiring
fault which could have
overloaded the thyristor.
Isolate the furnace if this
fault persists.
58
Содержание CARBOLITE GERO BLF 18/3
Страница 38: ...4 0 3508 Dual Loop Cascade Power Limit View 38 ...
Страница 59: ...10 0 Wiring Diagrams 10 1 195 1 1013 59 10 0 Wiring Diagrams ...
Страница 61: ...Please refer to the rating label for product specific information 61 11 0 Fuses and Power Settings ...
Страница 63: ...Notes Service Record Engineer Name Date Record of Work ...