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Ask Rob Your Own Question
Rob
Rob, Home Appliance Technician
Category: Appliance
Satisfied Customers: 420
Experience:  20 yrs. experience with a major worldwide manufacturer.
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will only heat tap water. no temp reading on digital display.central

Customer Question

will only heat tap water. no temp reading on digital display.central heating cool.model24cxi
Submitted: 2 years ago.
Category: Appliance
Expert:  Plumberpro replied 2 years ago.
Customer:

Hi , there are a couple of things it may be

JACUSTOMER-fycxdutd- :

what are they

Customer:

Hi , firstly its important to find if the fault is with external controls or within the boiler

Customer:

Do you have a programmable room stat or programmer and separate room stat . and if so is it wireless?

JACUSTOMER-fycxdutd- :

no

Customer:

Ok , need a little help here , so how do you turn the hearing on?

JACUSTOMER-fycxdutd- :

heating is on a timer with no room stat.

Customer:

Ok , the timer could be at fault .but if there is power coming from it to the board it could be either the flow and return thermistors ( easy and cheap to replace ) or the diverter valve/diverter valve head. Take off the diverter( three way valve ) , circlip holds it on . when the heating is switched on ,make sure the motor is moving / turning. The valve has to motor the valve across for hot water. If there is no movement , check for power to it.if there is replace the valve motor head. Also with the head off check that the valve itself moves. If this is ok , then replace the thermistors , flow and return