My Honeywell when switched on manually is not starting the boiler or when it starts ok , it shuts off the heating system after a while while the dislpay shows otherwise. It seems as if the communication between control and LED control is not working and needs re programme. Can you advise how to correct this . Thanks

Asked by Paul meade on 01/19/2014 1  Answer

ManualsOnline posted an answer 10 years, 8 months ago

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