Service Manual 32 – Contour 3 Series, Profiler & Advance – Approved Issue 5 Printed 2/13/2014 11:50:17 AM
63
Cooler Operation
(cont.)
Pump Operation
(cont.)
Electrical Checks (cont.)
If NO power:
Check the Cooler's operation is not in a delay period preventing the pump from
functioning.
Check the power supply is turned ON and is the correct polarity and voltage
(
MAINS/ACTIVE-IN
and
NEUTRAL
terminals).
Check the N-E5 module is turned ON and is correctly located in the mounting plug.
Empty the tank of all water and then drive the pump with your multimeter on
Amps. Caution: only a qualified electrician should perform this procedure,
because this involves full current 240 volt electricity.
Bridge terminals
PUMP-ACTIVE
and
MAINS/ACTIVE-IN
using multimeter set on
Amps.
If pump functions:
Check the pump loom and all terminals.
Check the N-E5 internal 8 Amp fuse is not open circuit.
Replace N-E5 and re-test.
Replace Networker and re-test.
OFF
10 A
V
COM
FUSED
1000V- - -
750V
V
Amps
Multimeter
.22
A
MAINS ACTIVE-IN
PUMP - ACTIVE
If pump doesn't operate:
•
Refer to mechanical checks.
•
Replace pump.