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new programmer fitted?

i have replaced my old honeywell programmer with a new grasslin QE2 programmer and now i have no heating
mick, December 2009
There's a 2 pageTimer/Programmer compatibility chart here (with connection details) - it may be helpful to you...

http://www.heatweb.com/pdf/Invensys/Programmer%20Compatibility%20Chary.pdf

Good luck...

Peccavi, December 2009
link Click here to see other fixes for Honeywell.