Honeywell Central Heating Programmer - Diagnostic & Repair - iRefab

[@hasinabegum5037]

Can't believe how tidy your workbench is lol. Appreciate the clean camera angles, keep up the good work.

[@irefab]

Thank you

[@solpcb]

Yes as bellow lovely lab you got going on ! Capacitor dropper circuit is pretty common failure even on the newer st9400 replacement . A good idea to replace 47uf filter at the same time. Newer models now use a cr2032.

[@irefab]

Thanks for the tip 🤲🏻, I’ll bear that in mind if we get anymore of these in 👍