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Heartland Appliances Metro Service Manual page 24

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Procedure 8
Step 1: Disconnect power supply
to range.
Step 2: Pull range away from wall.
Step 3: Remove range's back
panel (see Procedure 32). Safety
high limit reset button is located
underneath stove, between front
right and rear right legs. However
all wiring connections need to be
accessed from the back of the
stove.
Step 4: To access wiring from
safety limit to elements or bake/
broil limit, back of stove will need to
removed (See Procedure 32)
- Safety High Limit
Step 5: Check position of safety
probe. it must be inside protective
casing for proper operation.
Step 6: Disconnect wires to safety
limit and test for continuity across
terminals. If defective replace.
Step 7: If safety checks in good
condition and safety red button had
tripped - safety may be out of
calibration. Calibrate or replace.
Step 8: To access safety limit,
remove nut holding safety limit from
underneath bottom using 7/16" nut
driver
24
Section 5-3
Step 9: Remove one out of two
screws from top clip and slide out of
way. With thin blade screwdriver
adjust calibration. Turn 45 deg
CCW to increase temperature limit
125F or CW to decrease by 125F
Step 10: If replacing safety limit,
ensure new safety probe is nestled
entirely inside protective casing and
that protective sleeve is in place.
Also ensure insulation is between
casing and oven side.
Caution: Use extreme care when
handling self clean oven thermostat
probe and wire. Do not bend
excessively or repeatedly. Contents of
probe (sodium and potassium
hydroxide) produce lye in the presence
of moisture. If contents contact skin,
remove with dry towel or cloth (NEVER
USE WATER). Then wass area
thoroughly with water and soap. If
assembly ruptures, crimp broken ends
with pliers.
MLSM2003-01-03

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