V.Trouble shooting
Problem
Indicator light will not turn on
and unit will not heat
Heating indicator is not on.The
temperature is not increasing
Power indicator is on but the
desired temperature is not
reached
Temperature control is normal
but indicator is not on
Temperature
indicator
on.But heater tube is not hot
Temperature
can
controlled
VI.Diagram
ST1
Thermostat
ST2
Temperature Limiter
HL1
Power indicator
⚫
Plug not properly in-serted
⚫
Micro switch not closed
⚫
Electric heater tubes is not
properly connected.
⚫
Heater is defective
⚫
Temperature controller is
burned out
⚫
Indicator light is burned out
⚫
is
Temperature
tripped
⚫
not
be
Temperature Limiter is out of
order
Caused
limiter
has
Solution
Plug unit in
Adjust the limit distance of micro-
switch.
Tighten both sides of electric heater
Replace electric heating tube.
Replace Thermostat Control
Replace indicator.
Reset over heating protecting button
by hand on bottom of electrical box
Replace
temperature
Button
limiter/Rest
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