Regal LS4C Owner's Manual page 174

PROBLEM
Toilet does not flush or flush
performance is poor.
Water does not enter bowl during
flush or water add cycle.
Bowl drains dry after flush.
No toilet system voltage.
TECMA ELECTRIC TOILET
DIAGNOSTIC CHART
Waste tank is full.
Clog at pump inlet.
Solid object in macerator pump.
Low voltage.
Water supply line kinked or not
connected.
No power to pressure water
pump/fresh water switch off.
Solenoid is unplugged at relay
module.
Water is siphoning out of bowl
due to discharge hose pulled
down
Battery switch in "off" position.
Toilet fuse blown.
Ship's battery(ies) dead.
CAUSE
Empty waste tank.
Clear clog. Do not flush foreign
objects.
Turn off power. Attempt to re-
move object. If unsuccessful,
contact Thetford service USA
(1-800-543-1219). Do not flush
foreign objects.
Check that toilet supply voltage
is 12 volts DC. Make sure the
voltage does not decrease more
than 10% with macerator running.
Check to make sure water supply
line is connected to fresh water
supply and is not kinked.
Check fuse panel to ensure fuse
has not "blown". Check all fresh
water pump connections.
Check wiring harness connec-
tions at solenoid.
Discharge hose from macerator
pump is pulled down. Straighten
hose so that top of discharge
hose is in line with toilet nozzle.
Activate battery switch.
Replace fuse
Charge batteries out of vessel.
ACTION
174