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Ditrubance Cause Trouble-shooting Remedy
No-Frost
Check if blade is locked
mechanically.
Fittings for fan or air
guiding duct are adjusted
or replaced.
Check if blade is fixed
correctly on shaft.
Blade must turn so that
air flow only can be
sucked in and blown out
in the right places. Blade
must cover 10mm of
shaft end, on two-step fan
14mm.
No-Frost
Check id timer is set in
defrosting position.
Turn timer forward.
No-Frost Evaporator blocked
by ice.
Check for snug fit of doors,
cable or tube wall ducts.
Check if timer is under
tension when set at
defrosting (remember that
timer is only under is under
tension when freezer
thermostat is cut in). Check
bimetallic thermostat and
thermal fuse. Bimetallic
thermostat can only be
checked when the
evaporator is cold (colder
than 5°C). Check if heating
element is under tension.
Furthermore, when the
doors have been open for a
long time, the evaporator
may be blocked by ice.Even
though the compressor runs
continuously, up to 10
hours will be elapsed before
the next defrosting takes
place. There will be no
cooling in this period.
Repair leakage. Check
electric connections and
contact unit of timer.
Refrigerates/freezes
too little or not at all.
Compressor runs
continuously.
Capillary tube
completely or
partially blocked
(material from filter
in capillary tube
opening). Capillary
tube is inserted so far
up in the filter that it
touches the filter net.
Mount valve on charging
pipe. Measure suction
pressure. Check pressure
equalizing time. Cut
capillary tube
approximately 5cm after
filter. Blow N2 through
charging pipe and check
flow through capillary tube
d filt
See section 4.1 and 4.1.1
6.