Fisher Scientific Isotemp 13-986-327L, Руководство пользователя, Страница: 14 / 20

1.) Check defrost clock. Minimum of 2 defrosts per
day with 40 minute failsafe is recommended.
Add one or two additional defrosts if ambient
conditions are warmer than 80°F and humidity is
high. Set clock to time of day; observe clock
movement after 30 minutes to see if clock func-
tions.
2.) Check thermodisc. This should not open until
defrost temperature reaches 55°F or higher.
Make sure thermodisc is closed at beginning of
defrost.
3.) Make sure defrost heaters function. The heater
should be hot to the touch after freezer has
been turned into defrost 3 to 5 minutes. Do not
touch heater with bare hand.
Unit noisy
1.) Make sure shipping band has been cut and
removed from compressor.
2.) Check fan blades and motor to see if they are
tight.
3.) Look for loose parts and check to see if refriger-
ation or electrical lines are rubbing.
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T
ROUBLESHOOTING