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Troubleshooting
Problem
Waste discharge
■
pressure stops or
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decreases dra-
matically.
■
■
The pump oper-
■
ates, but no liq-
■
uid is expelled.
■
The motor will
Make sure:
not run.
■
■
■
■
■
The pump turns
■
off on its own.
How do I disas-
■
semble the sys-
tem to check for
an object lodged
in the pump?
®
Turbo - Model 500
SANICON
Solution
Are the holding tanks empty?
With pump on, look for location
where hose expansion differs; check
for obstruction at that point.
Turn the pump switch to the Off
position:
■
To CHECK FOR
OBSTRUCTION IN HOSE
(
E
): Check for foreign matter
lodged in the hose by running
your hand along hose to detect
variation in hose width.
■
TO CHECK FOR OBSTRUC-
TION IN IMPELLER: Refer to
Obstruction Removal section.
Failure to clear a clog could cause
damage to the pump, which will void
the warranty.
Are the holding tanks empty?
Check that the RV gate valves are
open.
Pump may be clogged.
Pump is turned on.
RV battery is charged.
Circuit breaker/fuse is functioning.
Pump is receiving voltage.
Foreign object is not preventing
impeller operation
See "Thermal Cut-Off Switch" topic in
this document.
Refer to "Obstruction Removal" topic
in this document.
Warranty
For defi ned warranty terms, review the one-page warranty
statement - see www.thetford.com.
Please give Serial Number (located on the pump or
NOTICE
manual sticker) for calls to customer service and war-
ranty issues.
5
97539 Rev. B (07/10/2017)
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