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4. Troubleshooting Guide
The following fault table is provided as a guide to resolving operational
issues with the Powermag system. Any fault diagnosis must be
conducted by a suitably qualified electrical engineer
.
Problem
Possible Cause
Recommended Solution
Coil remains inactive
Supply water flow has
stopped
Water temperature is above
the set point of the thermistor
Check water supply flow
Do not use thermistor for hot
water
Adjust thermistor to suit the
application using dial on rear
of Control PCB Display
Mains MCB tripping
Fault on transformer
Test and replace transformer
Coil DC supply MCB tripping
Fault on coil
Test and replace coil
Panel temperature high
Loose connections on power
circuit
Check and secure loose
connections
Fault monitoring contacts
remain closed
Loss of power to panel
Check power supply and
MCB status
5. Spare Parts List
Description
Part Number
Transformer 13.5V (PM100 only)
PMT13.5
Transformer 16V
PM16
Isolation Switch
PMMI30
6A MCB (Mains Supply MCB)
PMCB6
10A MCB (PM100 only)
PMCB10
16A MCB (Coil Supply MCB)
PMCB16
Control PCB Display
PMDISPLAY
Thermistor with lead
PMTHL
For spare parts please contact BWT on 01494 838100 or email
