Operating instructions

47
Trouble-shooting
77
1772
The purpose of the trouble-shooting guide is to
facilitate the location and correction of the most
common machine problems.
Before the top panel is removed, power to the
machine is to be switched off at the main source or
at the separate circuit breaker.
At each trouble-shooting attempt, the plug in
connectors on the control panel should be moved
in and out in order to eliminate improper contact
due to faulty connection.
Please note that this guide does not include all
possibilities, but only those most likely to cause
the symptoms listed.
In trouble-shooting electrical problems, always
make certain to have the proper electrical
schematic or wiring diagram at hand. Test for
power using a V-O-M or similiar meter on the AC
voltage scale. Test for continuity with all electrical
power off.
If machine does not start:
A Check the circuit breaker in the power feed line
to the machine.
B Check door safety switches.
C Check glass cartridge fuses.
D Check electrical auxiliary contact on extract
relay.
E Check reversing switch.
F Check the V-belt and motor.
G Check programmer switch M.
H Check start switch on side of programmer.
If water does not drain:
A Check drain valve and solenoid for proper
operation.
B Disconnect drain hose connected to drain line.
If full flow of water comes out, the problems is
in the main waste line. If water flow is slow, the
problem is the accumulation of foreign materials
between drain valve and shell outlet of
machine.
C Clean valve body of any foreign objects found.
D Check programmer switch K.
E Check drain relay.
Fig.
77
Fig.
78
78
2375