DOC2012/2000en
41
Fault
Possible cause
Solution
Pilot burner ignites but boiler then
goes to lock-out, indicator (2) alights.
Main burners do not light
Check flame probe
If damaged, replace
Flame probe lead(s) not connected or
faulty
Rectify
Faulty connections to main safety shut off
valve(s)
Rectify
Faulty main safety shut off valves
Change valves
Faulty control box
Check ionisation current, as per instructions
Replace
Boiler operates but then goes to
overheat indicator (4) alights
Fault in water system
Rectify
Main burner pressure set too high
Reset
Pump overrun inoperative
Rectify
Boiler does not shut down
Min. fire is set too high, reset servomotor.
Summary of Contents for R2000 Series
Page 50: ...DOC2012 2000en 50 Notes...
Page 51: ...DOC2012 2000en 51 Notes...
