Heating - Potterton iHE 100 Installation & Servicing Instructions Manual

4.5 FAULT CODES LIST (CONTINUED)
Code Fault Description
330 Sensor input BX1 without function
331 Sensor input BX2 without function
332 Sensor input BX3 without function
333 Sensor input BX4 without function
335 Sensor input BX21 without function
336 Sensor input BX22 without function
351 Primary controller/system pump, address error
353 Cascade fl ow sensor B10 missing
384 Extraneous Light
385 Mains under voltage
386 Fan speed tolerance
388 DHW sensor no function
432 Function earth not connected
NA Operating mode button locked - Cannot operate in
DHW or Heating mode (No fault displayed)
iHE
Notes
BX1 connected but not defi ned - check parameters
BX2 connected but not defi ned - check parameters
BX3 connected but not defi ned - check parameters
BX4 connected but not defi ned - check parameters
BX21 connected but not defi ned - check parameters
BX22 connected but not defi ned - check parameters
Htg Pump (Q14) not confi gured on PCB1
Check connections and confi guration of sensor (B10)
Ionisation current detected before ignition
Mains voltage below 185v - check electrical installation
Fan outside allowed speed tolerance level
Tank temperature sensor not confi gured (B3)
No Ignition earth, X1 / X17 not connected or earth fault
Remote system enable operating. Check to see if link is still in place
or controls wired to these terminals are closing this circuit.
43
Table 3.0
GB/IE