5 Troubleshooting and error correction
Thermo S 160/230/300/350/400
508
5.4.4 Error symptom "Extraneous light detected
prior to ignition or during run-down"
NO
YES
Did overheating occur?
Correct overheating cause.
Is the burner properly screwed onto the
heat exchanger?
Properly screw burner onto the heat
exchanger.
Did the heater burn longer before?
Was the heater stopped or the voltage
disconnected before or during run-down?
Is the combustion air inlet clean/free?
Is the motor OK and can rotate freely?
Is the exhaust outlet clean/free?
Is the burner pipe coked, contaminated
or damaged?
Is the heat exchanger sooted?
Is the correct combustion chamber
installed?
Clean/clear combustion air intake inlet.
Correct motor problem.
Clean/clear exhaust outlet.
Clean / replace burner pipe. Clean
heat exchanger.
Insert correct combustion chamber.
Did the error return?
Let heater cool down for approx.
2 minutes and restart again.
Did the error return?
Replace the complete solenoid valve.
Did the error return?
Control unit defective, replace it.
Summary of Contents for Thermo S 160
Page 2: ......
Page 6: ...1 Introduction Thermo S 160 230 300 350 400 4...
Page 11: ...S o m r e h T n o i t c u d o r t n I 1 160 230 300 350 400 105...
Page 49: ...5 Troubleshooting and error correction Thermo S 160 230 300 350 400 520...
Page 55: ...r e h T s m a r g a i d c i t a m e h c S 6 mo S 160 230 300 350 400 606...
Page 71: ...9 Modifications and retrofits Thermo S 160 230 300 350 400 902...
Page 73: ...10 Packing storage shipping Thermo S 160 230 300 350 400 1002 Empty page for notes...
