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Plumberpro
Plumberpro, Plumber
Category: Plumbing
Satisfied Customers: 634
Experience:  Heating and plumbing answers. 20 years experience
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Ariston genus 32 he. No hot water, heating ok. Diverter

Customer Question

Ariston genus 32 he. No hot water, heating ok. Diverter valve has been replaced and now there is error code E 04. (het sensor replace). What could be the problem?
Submitted: 11 months ago.
Category: Plumbing
Expert:  Plumberpro replied 11 months ago.

Hi, could be the hot water temperature sensor. If the sensor is faulty it would prevent the boiler firing up.definitely replace it

Customer: replied 11 months ago.
The sensor has been replaced
Expert:  Plumberpro replied 11 months ago.

E04 is faulty temperature probe, but if you have replaced it have you replaced the hot water flow switch ?

Customer: replied 11 months ago.
DHW flow switch has been replaced as well
Expert:  Plumberpro replied 11 months ago.

Does the boiler fire up when you run a hot tap? Even for a few seconds

Customer: replied 11 months ago.
It only fires up for the heating
Customer: replied 11 months ago.
can it be wired for DHW instead of heating, temporarily?
Expert:  Plumberpro replied 11 months ago.

Hi, no I don't th9nk so . I wonder if you got a faulty new temperature probe. If you have a multimeter you can test the probe using ohms setting .the reading should change on temperature change.

Customer: replied 11 months ago.
I'd have to try.You don't think it's the PCB?
Expert:  Plumberpro replied 11 months ago.

Well most of the parts that are on the hot wTer side have been changed so the pcb is a possibility, but would definitely check the hot water temperature probe first.

By the way it is possible to get reconditioned pc's which are half the price.

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