I have had this boiler now for about 7 yrs and it has not been a good experience.
1st problem was the heating engineer, who installed the non return valve on the wrong side of the expansion bottle, so the pressure build on heating up had no where to expand to, so caused a few leaks in radiator valves and perforated radiators.
Result: Fixed that with help from here by moving the non-return valve
About 2 yrs ago I suffered from constant lockouts.
Result: Fixed that by removing the PCB and re-soldering all the major joints especially all that relate to the connectors. Lots were dry joints.
Started locking out again recently. This time it was lack of water due to a small leak in the bypass valve (apparently bypass valve reduces pump noise when system is on pump overun)
Result: Fixed that leak.
More lockouts in last few days. Thought for £20 I'll replace the overheat and temperature sensors. Fitted those and noticed it was not holding the flame for long before shut down. Any fiddling or vibration was causing the flame to die. I narrowed it down to the earth wire thats a return from the ignition sparker, it also returns the flame detector signal to the PCB. This was not a very good connection. Due to constant expansion and contraction the joint was loose. Quick squeeze with a pliars and all is well again.
Potterton Suprima 60 has been a pain in the neck in one way or another, next time its going to be Worcester Bosch or Valliant.
So if yours is sparking but not holding the flame make sure that earth wire is well connected. Its cost me a few hrs of my time messing around with it so I passing this on so maybe it might be of use to you.
1st problem was the heating engineer, who installed the non return valve on the wrong side of the expansion bottle, so the pressure build on heating up had no where to expand to, so caused a few leaks in radiator valves and perforated radiators.
Result: Fixed that with help from here by moving the non-return valve
About 2 yrs ago I suffered from constant lockouts.
Result: Fixed that by removing the PCB and re-soldering all the major joints especially all that relate to the connectors. Lots were dry joints.
Started locking out again recently. This time it was lack of water due to a small leak in the bypass valve (apparently bypass valve reduces pump noise when system is on pump overun)
Result: Fixed that leak.
More lockouts in last few days. Thought for £20 I'll replace the overheat and temperature sensors. Fitted those and noticed it was not holding the flame for long before shut down. Any fiddling or vibration was causing the flame to die. I narrowed it down to the earth wire thats a return from the ignition sparker, it also returns the flame detector signal to the PCB. This was not a very good connection. Due to constant expansion and contraction the joint was loose. Quick squeeze with a pliars and all is well again.
Potterton Suprima 60 has been a pain in the neck in one way or another, next time its going to be Worcester Bosch or Valliant.
So if yours is sparking but not holding the flame make sure that earth wire is well connected. Its cost me a few hrs of my time messing around with it so I passing this on so maybe it might be of use to you.
