I was asked to look at an Alpha CD28. Plumber had been there and drained the system to move rad. When he filled up and tried to start the boiler he was met with both the LED's flashing intermittently.
Fault guide says this is low pressure and i told him to check pressure, filling loop etc. LED's still flasing alternativley. I took a quick look this morning. Put my meter on the low pressure switch and got continuity. Could the low pressure switch still be faulty even with continuity?? eg: crud on the switch itself... would you recommend changing the switch??
Any ideas as to what else would be preventing the boiler from firing up??
Nick
Fault guide says this is low pressure and i told him to check pressure, filling loop etc. LED's still flasing alternativley. I took a quick look this morning. Put my meter on the low pressure switch and got continuity. Could the low pressure switch still be faulty even with continuity?? eg: crud on the switch itself... would you recommend changing the switch??
Any ideas as to what else would be preventing the boiler from firing up??
Nick