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Rob
Rob, Home Appliance Technician
Category: Appliance
Satisfied Customers: 420
Experience:  20 yrs. experience with a major worldwide manufacturer.
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My boiler does not come on when contant only once in the evening

Customer Question

My boiler does not come on when contant only once in the evening as on the timer and goes off as per the timer. The timer is new not sure ehat is wrong
Submitted: 1 year ago.
Category: Appliance
Expert:  Andrew Smith replied 1 year ago.
Your boiler only comes on once not twice as programmed?
Customer: replied 1 year ago.
Yes
Expert:  Andrew Smith replied 1 year ago.
The programmer is set to "twice"?Do you have the make and model of the new timer?
Customer: replied 1 year ago.
Honeywell St9400c
Expert:  Andrew Smith replied 1 year ago.
Just to make sure; at the second time is the hot water on also but not at the first time?
Customer: replied 1 year ago.
The hot water is on the 2nd time
Expert:  Andrew Smith replied 1 year ago.
Ok, sounds like your motorised valve is stuck.There is a lever on the side that should be tight to move when hot water and heating is off.You will find yours is slack - can you check?
Customer: replied 1 year ago.
On the boiler or the timer
Expert:  Andrew Smith replied 1 year ago.
In the airing cupboard.Usually a silver or white box on the pipework near the pump