Bosch Greenstar Combi Error E9 Diagnosed and Fixed in Minutes!

Easy fix, typical for Bosch Greenstar combi systems! Error E9 high temperature limit - issue is NOT described in the service manual. Special thank you to Timmy @Platsky HVAC and the entire team @BoschHomeComfortUS Please support this channel and Mikey Pipes and consider the following… Pipe Doctor long-sleeve shirts featuring “Let’s Go Bosch” on rear Minimum donation of $11 to cover shipping expenses Pipe Doctor long-sleeve shirts are available in Medium, Large & XL Minimum donation of $34 is appreciated Pipe Doctor FlexFit Embroidered Caps Minimum donation of $37 is appreciated (If you are international - please add a minimum of $40 for shipping/postage) I am on Reddit, Discord & WhatsApp! Sticker Requests: Name Address City, State, Zip Consider making a donation of $5.00, or ANY amount, to the postage fund! I literally mail out stickers all over the globe. I&sent stickers to HVAC guys in Afghanistan, New Zealand & all over Europe. PayPal is: office@pipedoc.net Venmo: @PipeDoctor CashApp: $mikeypipesny Want to send a love letter, note or gift? Our mailing address is: Mikey Pipes C/O Pipe Doctor Plumbing 80 E Hawthorne Ave Valley Stream, NY 11580 #Boiler #heatingandairconditioning