GMC Motor Home User Manual

3 . PROBLEM :
Toilet does not cycle properly (5 to 9
seconds) when button is pressed .
CAUSE :
a . Reversed wiring polarity .
b . Battery run down .
c .
Branch wire too small .
d . Damaged timer .
SOLUTION :
a . The black wire is positive (hot) and the
white wire is negative (ground) .
b . Recharge auxiliary (living area) battery .
c . Branch wire should be #14 gauge mini-
mum .
d . Replace timer assembly .
4 . PROBLEM :
Flushing
action is weak or noisy .
CAUSE
:
a . Pump is running backwards (reversed
wiring polarity) .
b . Cycling unit without enough charge water .
c . Pump damaged by continuous dry opera-
tion .
SOLUTION :
a . The black wire is positive (hot) and the
white wire is negative (ground) .
b . Charge to proper level (3 gallons) . Fill to
charge level (c) on indicator lens .
c . Replace pump assembly .
5 . PROBLEM :
Lack of capacity .
CAUSE :
Too much charge water .
SOLUTION :
10 3
Dump Hose Extension
(Stored)
DRAINING
HOLDING TANK
NOTE : If holding tank
is allowed to overfill,
the overflow will
back up through the bathroom
shower drain .
1 .
Be sure the holding tank valve is closed .
It is located on the left-hand side of the vehicle
just behind the left rear tandem tire .
2 . Remove dump hose extension from
the
storage tube inside rear bumper .
Hose is at-
tached to bracket near the left
rear energy ab-
sorbing piston .
It
may
be removed by rotating
hose adapter
counterclockwise to remove from
bracket
.
Use three gallons
only
to charge . Fill to
charge level (c) on indicator lens .

Dumping Station
Connection

GMC Motor Home Specifications

General

Brand	GMC
Model	Motor Home
Category	Motorhomes
Language	English