Lee Davies
Gas Engineer
- Messages
- 48
er
OK, so here is an update on this boiler to see if anyone else is the wiser.
I actually got longer than 15 minutes in the property today.
I cleaned out the condensation trap, this was blocked, therefore causing the boiler to lockout. The trap was full of 14 years worth of aluminium by the looks of it from the HE.
Checked the case seals on the CC and they are not passing, therefor I didn't remove the combustion chamber door and it isn't the overheat stat on the fan causing lockout.
Fan is working correctly, 3 port valve is working correctly, pump is working correctly, electrodes are sparking correctly (I removed them to check spark strength and clean).
The issue is now as follows.
Programmer comes on for water or heating, 3 port switches to the correct side, pump is permanently running. boiler acknowledges that there is demand and the fan kicks in. Electrodes spark as they should. Here is where the problem now lies as "sometimes" the boiler will try 5 times and then lockout, sometimes it will fire up first time, sometimes it tries once or twice.
My gut feeling is the solenoid on the gas valve is being dicky, or the Ignition PCB has an intermitent fault anyone else have any ideas?
Customer is also asking, due to the age of the boiler and possibility of other future issues, is it more economical to replace the boiler with something like a Viessmann Vitodens 16KW open vent?
Regards
P>S I have submitted my gas safe number to Harvest Fields so I can post in the private section.
OK, so here is an update on this boiler to see if anyone else is the wiser.
I actually got longer than 15 minutes in the property today.
I cleaned out the condensation trap, this was blocked, therefore causing the boiler to lockout. The trap was full of 14 years worth of aluminium by the looks of it from the HE.
Checked the case seals on the CC and they are not passing, therefor I didn't remove the combustion chamber door and it isn't the overheat stat on the fan causing lockout.
Fan is working correctly, 3 port valve is working correctly, pump is working correctly, electrodes are sparking correctly (I removed them to check spark strength and clean).
The issue is now as follows.
Programmer comes on for water or heating, 3 port switches to the correct side, pump is permanently running. boiler acknowledges that there is demand and the fan kicks in. Electrodes spark as they should. Here is where the problem now lies as "sometimes" the boiler will try 5 times and then lockout, sometimes it will fire up first time, sometimes it tries once or twice.
My gut feeling is the solenoid on the gas valve is being dicky, or the Ignition PCB has an intermitent fault anyone else have any ideas?
Customer is also asking, due to the age of the boiler and possibility of other future issues, is it more economical to replace the boiler with something like a Viessmann Vitodens 16KW open vent?
Regards
P>S I have submitted my gas safe number to Harvest Fields so I can post in the private section.
