Mermaid REFRIGERATION/FREEZER - Manual (Page 16)

F: Excessive Frost Build-Up:
Note: This is the result of moist air being allowed to enter the box. Problems are
compounded when cold air leaks from the lower area of the box & is replaced by warm,
humid air entering elsewhere.
1 Drains & holes not
plugged
Make sure all drains & holes in the
floor & walls of the box are sealed.
2 Circulating fan If a small fan is used to circulate air in
the box, make sure that the cold air is
not being blown towards & out of a
door/lid seal. This could force cold air
out of the box & set up a circulation
pattern if the seals are leaking
2 Poor or damaged door/lid
seals
Check seals & replace if necessary. A
good seal will grip a $1 bill when
inserted in the seal & the door/lid is
then closed. A front opening door / top
opening lid combination with poor seals
is likely to result in excessive frost
build-up on the evaporator, & extended
run times.
KOOL-TEMP ™
WIRING SCHEMATICS