How to reset service interval on Honeywell programmer

You may find these in social housing or rental properties where sometimes gaining access to the property can prove difficult if the tenant isn't cooperating.

By having a service interval it will stop the timer from allowing the demands to switch on, meaning the engineer will need to gain access to service the boiler, carry out safety checks and then reset the interval.

You can find the manual online or just screenshot the last 2 slides.

[AM-xolr]

Cheers! Heating company have got annual service completely out of sync with the service due settings and I'm sick of having to take time off work for someone to come out and spend less than a minute resetting it. I love Youtube solutions so much! 🙏

[jameswhitaker]

Not all heros wear capes! Just got in and found this issue on mine. Got my heating and hot water back on thanks to this video. Thank you.

[TheOnlyIncognito]

The audacity of them telling me there’s no other option and to use kettle water to take a bath. Thank you!

[Light_vivid_shadow]

Thank you so much. My boiler company were not willing to come out for days even though my heating wouldn't work and I have young children. Managed to do it myself now. Thanks 😊

[umuaisha]

Thank you so much your served my time I have children in the house no heater in the winter you can imagine but after I watched your video I was able to reset my boiler thank you so much

[tanlan]

Can't believe how clutch this came in on! Thank you thank you thank you.

[wallybingbang]

Thanks for this. Swale Heating could not get my boiler going and they are supposed to be the experts.

[Котпеченье]

Thank you so much!! It saved us, especially at the weekend

[Theebarb]

Just used this and it saved me thank you so much

[jordanwilson]

Bro I rate you for that tried charging 200 pound call out fee legend

[donblandford]

This has been really helpful - only problem is 0000 is "invalid" and I have no idea what the PIN code is...

[SB-bzgp]

If you leave the hot water timer on from for example 4pm-10pm, is the boiler going to keep reheating the water continuously? Or does it automatically stop heating the water once its reached boiling point?

[yuerinmorgan]

Thanks for the information. If you don’t mind can you tell me if I can leave the heating on my Honeywell ST9100S in the on position permanently, and turn the radiator’s on & off via the Thermostat?

[ashvanbro]

Thank you brother need some advice do you know the service plus s17r call eng code as well I'm gas safe but never worked on one before

[CharkyCharl]

Can you help. I need to change the batteries in this thermostat. How do I take it off the wall? Thanks

[Simon-rxsv]

Hi the pin on mine has been changed is there a way to override the changed pin, not tried a factory reset as not sure how to to it and what settings to put in after a reset,