CSZ MICRO-TEMP LT 749 - Replacement of Fuses in the I;O Power Switch; Replacement of the Water Level Sensor Assembly

FIELD REPAIR/SERVICE MICRO-TEMP
®
LT, Model 749
OPERATION AND TECHNICAL MANUAL
Page 53 of 75
5-9. REPLACEMENT OF FUSES IN THE I/O POWER SWITCH
A. Obtain new fuse/s.
B. Using a Flat Head screw driver, open the fuse housing area on the power switch by
prying open the cover.
C. Pull out the fuse holders with fuses from the power switch
D. Remove bad fuse/s from fuse holder/s.
E. Install new fuses inside a respective fuse holder.
F. Re-insert fuses with fuse holders into the open area in the power switch.
Note: Make sure arrows on fuse holders correspond with the arrows indicated on the
power switch.
G. Close power switch tab.
5-10. REPLACEMENT OF THE WATER LEVEL SENSOR ASSEMBLY
A. Obtain a replacement water level sensor.
B. Drain the reservoir as described in Section (4-2.1).
C. Separate the front and rear enclosure as described in Section (5-2.1).
D. Disconnect the 2 pin water level sensor connector (J3 Position) from the control
board.
WARNING
 Always unplug the unit before accessing internal components during service. Failure to
unplug the unit could result in electric shock.
 For continued protection against risk of fire, replace only with same type and rating of fuse.
Electrical hazards may result.
WARNING
 Always unplug the unit before accessing internal components during service. Failure to
unplug the unit could result in electric shock.
CAUTION
 Always drain the MICRO-TEMP
®
LT unit to a sanitary drain because bio-contaminants may be
present in the unit’s water supply.