
17
ME Standard Manual
07 SPARES
Controller
790220
Flow sensor
583027
30kW immersion heater
2534
35kW immersion heater
2536
Limit thermostat
581104
Water flow switch
480230
08 FAULT DETECTION
Before making any physical check, switch off the power
FAULT
CHECK
The ‘live’ light is out
Check for incoming power
Check fuses F1 and F2
Check the ‘live’ bulb
………………………………………………………………………………………………………………………..
The controller screen is out Check fuse F3
………………………………………………………………………………………………………………………….
Step 1 or Step 2 light is out
Change the bulb
………………………………………………………………………………………………………………………….
The ‘red’ light is lit
Check the limit thermostat
Check the water flow switch action
Check the circulating pump overload
…………………………………………………………………………………………………………………………..
If the fault remains Call in a qualified service engineer