Benchmark 5000-6000 Operation & Maintenance Manual
SECTION 4
– MAINTENANCE
OMM-0118_B
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GF-203
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5/9/2019
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4.11 LOW WATER CUTOFF (LWCO) CAPACITOR TEST
The LWCO capacitor should be tested for electrical shorts every 12 months and replaced,
then tested, every 24 months. The LWCO capacitor integrity test consists of two parts as
described in the next two sections. The first procedure explains how to test for electrical
shorting of the LWCO probe capacitor, while the second procedure instructs how to perform
the standard Low Water Cutoff test using the C-More Controller.
Figure 4-12 shows an illustration of a typical LWCO probe assembly installation.
Figure 4-12: LWCO Probe Location
LWCO Probe
Capacitor Assembly
(Covered By Shrink Tubing)
Connector
(to Shell Harness)
LWCO Probe
Terminal
Hot Water Outlet
Lift Top Cover
