worcester junior 28 junior

[danielp]

Hello, have been out to the boiler above for an intermittent lockout the fault lights flashing indicate ignition failure checked leads ignition probes and the transformer block all fine fga gas analysis came out 8.0 co2 on full rate and boiler running for about 20 mins so thats under what it should be the boiler has never been serviced in the 4 years its been installed my next qs is on fan pressure i use an anton v2 sprint connected it to negative get around 4.2 connect it to positive and get -3.6 the other way round i would of though it should be at can anyone share their experience on this! thanks dan

 

[SimonJohns]

Chek sump for debris
Check condensate trap for crud
If it hasn't had a service in 4 years. It's well over due for a red gasket and strip
May well be due for a new set of probes
Gas pressures. High load.
Did the homeowner record the fault codes. Blue light / red. Rate of flash

 

[danielp]

thanks for the quick reply, yeah said it might not do it one day and do it twice the next and also said the spanner light came on a couple of times she had the manual and told me it was the ignition lockout sequence with checking the fan pressure connecting the hose to a fga negative side i though i would be getting a negative number back instead of the other way round never used this new anyliser for it before!