Going to flame failure lock out only when bath is running! Checked the spark probes/rectification probes all ok. Voltage to the gas valve is fine as the resistance across the solenoid. Condensate clear and running away. 18 mb at the inlet.
Every time I go its working fine run the bath for about 10-15 minutes today and everything worked fine, heated the rads up and retried the hot water still fine. Asked the tenant when she mainly has the problem, she replied all the time which didn't help!
I am starting to think its only happening at peak times, and with her being on the fourth floor maybe the gas pressure is dropping (faulty regulator) so the inlet is way below its 18mb requirement and causing the boiler to lock out. Either that or a intermittent earth fault/pcb fault!
Thoughts anyone? This one is wrecking my head!!
Every time I go its working fine run the bath for about 10-15 minutes today and everything worked fine, heated the rads up and retried the hot water still fine. Asked the tenant when she mainly has the problem, she replied all the time which didn't help!
I am starting to think its only happening at peak times, and with her being on the fourth floor maybe the gas pressure is dropping (faulty regulator) so the inlet is way below its 18mb requirement and causing the boiler to lock out. Either that or a intermittent earth fault/pcb fault!
Thoughts anyone? This one is wrecking my head!!