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7-3.
Overload Protection
1
OM-252565 Page 24
Typical For Fuse F3 or F4
11
10
8
3 4 5
6
6
Typical For Fuse F1, F2, or F5
9
2
7
!
Turn off unit, and disconnect
input power.
.
When a circuit breaker or fuse
opens it usually indicates a
more serious problems exists.
If problem continues, contact a
Factory Authorized Service
Agent.
1
Electronics box
Remove cover.
2
Motor Protection Relay F6
F6 protects the compressor motor
from overload. If motor stops, press
button to reset.
3
Fuse F1
4
Fuse F2
5
Fuse F5
6
Fuse Holder block (Typical
For F1, F2, and F5)
7
Fuse
Lift fuse holder and open side panel
to access fuse.
F1 and F2 protect transformer TR1.
If F1 or F2 open, contact an Author-
ized Factory Service Agent.
F5 protects the inputs to the control-
ler from overload. If F5 opens, the
unit shuts down.
Check fuse, and replace if needed.
Close fuse holder.
8
Fuse F3
F3 protects the regulated power
supply from overload.
9
Fuse F4
F4 protects the automatic start/stop
circuit from overload. If F4 opens,
check sensor leads for shorted
conductors.
10 Fuse Holder (Typical for F3
and F4)
11 Fuse (See Parts List)
Turn fuse holder counterclockwise
and remove fuse.
Check fuse, and replace if ne-
cessary.
Insert fuse, and turn fuse holder
clockwise.
255 687-A / 254 437-A
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