12
Fault Finding
Any servicing must only be carried out by qualified personnel.
Unit must be removed from electrical supply before servicing.
Problem
Probable Cause
Solution
1. Indicated
ON/OFF switch
does not light up
No power to machine.
ON/OFF switch faulty
Check machine is plugged in and switched on.
Check fuse in 13a plug.
Check circuit breaker at main supply board is in
(ON).
Check Switch
Replace switch.
2. Digital
thermostat does
not indicate
temperature
reading.
ON/Off switch OFF
ON/OFF switch faulty
Digital thermostat
faulty
Switch ON
Replace switch
Unit has overheated, allow to cool
Replace if thermostat
3. Unit does not
heat up.
No power to machine
ON / OFF switch off
ON / OFF switch faulty
Digital thermostat
faulty
Switching relay faulty
Heat element faulty
See section 1.
Switch ON
Replace thermostat
Replace relay
Replace element
4.Machine does
not heat up,
alarm shown in
digital
thermostat
As indicated
Identify and correct
Summary of Contents for VIZU VI014HHC
Page 11: ...10 Wiring Diagram ...
