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Rob, Home Appliance Technician
Category: Appliance
Satisfied Customers: 420
Experience:  20 yrs. experience with a major worldwide manufacturer.
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Baxi platinum he 28 boiler normal start cycle seems ok but

Customer Question

baxi platinum he 28 boiler normal start cycle seems ok but rads not getting hot.Boiler set at 60 and pressure at 1.5.Boiler cuts in at 55 goes 80 and cuts out.
On hot water set at 40 but as above cuts in at 55 and out at 84.
Have flushed system.Have changed diverterh motor.Have changed expansion vessal and
valve as was previousley going out on hp
Submitted: 1 year ago.
Category: Appliance
Expert:  JamesI replied 1 year ago.

Good morning,

The CH outlet from the boiler is this pipe getting hot, then the other side of the valve is this hot, then check if the return is warm.

If you know you have got hot water leaving the CH outlet, but not coming via the return it must be a air lock, actuator (which you have already the motor for) or a valve further down the line.

If your not getting heat past the actuator my money is on the actuator not getting a single from the boiler, so its worth manually bypassing it using the leaver at the top and see if that then fixes the issue.

With regard to the HW, when you run the tap does it come out the tap very hot (>50 degrees)?