IDEAL IMAX XTRA E320 Installation And Servicing page 53

MASTER AND SLAVE BOILER CONTROL MODULE ERROR CODES CONTINUED
Code Description
29 Incorrect tacho signal from fan
30 Flow/return temperature differential too high
31 Flow thermistor short circuit
32 Return thermistor short circuit
33 Tank sensor short circuit
35 Flue thermistor short circuit
36 Flow thermistor open circuit
37 Return thermistor open circuit
38 Tank sensor open circuit
40 Flue thermistor open circuit
44 Internal Failure
52 Flue gas temperature too high
60 Error reading parameters
61 Air pressure switch closed when it should be open
107 Heat exchanger thermistor short circuit
108 Heat exchanger thermistor open circuit
109 Heat exchanger temperature too high
110 Heat exchanger temperature too low
111 Heat exchanger to return temperature differential too high
112 Heat exchanger temperature rise too fast
113 No valid mains frequency detected
114 Invalid or conflicting cascade address
115 Internal error
IMAX XTRA -
Installation & Servicing
FAULT FINDING
Action
Check wiring to fan. If wiring OK replace fan.
Check no air in system or boiler
Check adequate flow of water through boiler
Check wiring
Disconnect terminals from thermistor & confirm short
circuit using meter
Replace thermistor
Check wiring
Disconnect terminals from thermistor & confirm short
circuit using meter
Replace thermistor
Not fitted check parameter 46 settings
Check wiring
Disconnect terminals from thermistor & confirm short
circuit using meter
Replace thermistor
Check wiring
Disconnect terminals from thermistor & confirm open
circuit using meter
Replace thermistor
Check wiring
Disconnect terminals from thermistor & confirm open
circuit using meter
Replace thermistor
Not fitted check parameter 46 settings
Check wiring
Disconnect terminals from thermistor & confirm open
circuit using meter
Replace thermistor
Check wiring harness & connections
If wiring OK replace control module
Check no air in system or boiler
Check adequate flow of water through boiler
Press reset. If fault keeps re-occuring replace control module.
Check for blockages in air pressure switch sensing pipes
Check air pressure switch and replace if necessary
Check wiring
Disconnect terminals from thermistor & confirm short
circuit using meter
Check wiring
Disconnect terminals from thermistor & confirm open
circuit using meter
Replace thermistor
Check no air in system or boiler
Check adequate flow of water through boiler
Check no air in system or boiler
Check adequate flow of water through boiler
Check no air in system or boiler
Check adequate flow of water through boiler
Check no air in system or boiler
Check adequate flow of water through boiler
Check power supply to boiler
Press reset. If fault keeps re-occuring replace control module.
Check wiring harness & connections
If wiring OK replace control module
53