Greenstar 42CDI

[Lowflier]

I replaced a radiator on my Greenstar 42CDI Combi and topped up and bled the system. All went well till one day the CH would not switch on manually. It would always switch on when on timed but the manual setting worked intermittently after the radiator was replaced. I’ve tried the recalibration with the bottom left button but after a while E9 fault code appears. I’ve bled the system all round and made sure all were turned on, reset and repeated. E9 keeps appearing! I’m a Renault mechanic so I thought I could fix anything! Help please.

 

[Dotty]

Clearly not everything. This is where you step back and let a gsr take over.

Renault mechanic or not, you're not deemed competent to remove the case.

Job 38.11.