8.0 Fault Analysis
B.
Product Overheats
Product only heats up
1.
when the instrument
switch is ON
Product heats up
2.
when the instrument
switch is OFF
36
The controller
shows a very high
temperature
The controller
shows a low
temperature
The SSR has failed
"ON"
The controller is faulty
The thermocouple may be
faulty or may have been
removed out of the heating
chamber
The thermocouple may be
connected the wrong way
around
The controller may be faulty
Check for an accidental wiring
fault that could have
overloaded the SSR