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Plumberpro
Plumberpro, Plumber
Category: Home Improvement
Satisfied Customers: 40
Experience:  Fully qualified plumbing , heating and gas engineer 20 years experience
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I have a honeywell st9400s and since sunday the heating has

Customer Question

I have a honeywell st9400s and since sunday the heating has not been coming on in the morning any ideas why?
kate
Submitted: 3 years ago.
Category: Home Improvement
Expert:  Andrew Smith replied 3 years ago.
Is the programmer showing on?
Do you have a room thermostat?
Customer: replied 3 years ago.

yea programmer showing on and yes we have a room thermostat

Expert:  Andrew Smith replied 3 years ago.
Does your roomstat click when you turn it up?
Customer: replied 3 years ago.

Yea thermostat working cant understand it it comes on in the evening but not AM

Expert:  Andrew Smith replied 3 years ago.
When you adjusted the clock on Sunday night/Monday morning, can you make sure it is reading am/pm correctly?
Customer: replied 3 years ago.

everything set too correct am and pm. the clock changed automatic

Customer: replied 3 years ago.

Hi yes all settings correct and it changed automatic

Expert:  Andrew Smith replied 3 years ago.
Ok, lets go through this together.
The programmer is showing the correct time
The programmer turns on in the morning and the hot water comes on but the heating does not.
Both work in the PM.

Question - when the heating comes on PM, is the hot water on also? Do you think the water is still hot and therefore it is on heating only?