Replacing The Power Unit; Changing Fuses - Memmert BASIC Service Instructions Manual

8.

Replacing the power unit

• Pull out the mains supply plug!
• Remove the housing cover
• Pull off all cables from power unit
• (if nec. apply markers to unmarked cables)
• Release 4 screws from power unit (ensure that spacers are not lost)
Heating
Circulating fan
S30
Fan
9.

Changing fuses

• Pull out the mains supply plug !
• Remove the housing cover
• The two fuses are located on the power unit (see above)
• Check the fuse resistance with a continuity tester.
• If the fuse is OK the resistance is only a few Ohm.
• To change the fuse, place an insulated screwdriver from the side underneath the fuse and twist it to
lift out the fuse from its holder. Push the new fuse from above into the holder.
Main oven fuse:
Fuse controller/display:
SERVICE - UIS
Main terminal
supply
Screw
Spacer
15 A fast 32 x 6.3 mm (American)
EXCELLENT / PERFECT 100 mA slow 20 x 5 mm
BASIC 80 mA slow 20 x 5 mm
S 28 Controller/display
page 10
controller/display
Main oven fuse
S25/26
Temperature limiter
Fuse