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Ferroli f24b hot water intermittently goes cold whilst running.

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SOURCE: Ferroli DOM F24B Is leaking

Yes, this is a common problem on the domi compact. unfortunately ferroli accept no responsibility if not in warranty period! can be a costly repair..

Posted on Aug 19, 2008

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SOURCE: We have a FERROLI F30

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Posted on Jan 07, 2011

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I have a rinnai infinity series 24 litre hot water system and the problem is that the water sometimes goes cold for 1 or 2 minutes whilst showering ! Why is this happening ?


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Rinnai infinity standing in the shower and it suddenly goes cold for a few seconds no other water been run in the house or it goes cold and goes to a trickle then comes on again. Could the heat ex changer...


We are a bit confused by the device that you are using to heat the Hot water with- Is it an instantaneous HW heater?--
They are pressure sensitive-- Could it be, that your water pressure drops momentarily, (which causes the instantaneous heater to shut down its flame-- and you get a pulse of Cold water.)

If your hot water is a tank-- It is possible that something is cycling your hot water away-- like rinse pulses on the Washing machine)-- or your dishwasher?

Tell us more about the Rinnal Air Conditioners and what they have to do with Hot water and your SHower?

Tell us more-

Mack B

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How do i reseat the prv on a ferroli f24b boiler?


Hi, any pressure relief valves i have ever worked on, can't be reset. They are there to release water pressure that builds to high. If they continue to leak if you have discharged it, you can tap on it to see if you can get it to seal, or just replace it if it continues to run or drip water.
Sincerely,
Shastalaker7

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Ferroli optimax he 31c. brand new system will only heat 3 of 8 rads. boiler on 90c will only burn for 15sec then D2 shows and it cuts out. Why??


it is either your pump is not running or blocked [ debris from installation ect ] or your diverter valve is stuck partially open allowing a little water to pass into the heating system [ usually first rads on system ] it runs for a short while and cuts out because your overheat stat is kicking in because of poor circulation [ it is only running around the primarys in the boiler where it quickly reaches the over heat limit ] temp tends to rise approx 1 deg per second a clear indication of circulation problems.
solution GET RID OF THE FERROLI

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Ferroli boiler 31 che will not light up when hot water switched on notice in windowe says no ca or no co


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Have a combi boiler and the hot water from my taps are running cold to luke warm. My British Gas engineer has told me it is nothing to do with the boiler but is caused by a faulty thermostat cartridge in...


Modern shower valves have an "anti scald device" in them to prevent scalding from to hot water.

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Sometimes they can start to malfunction and all you get is warm, not hot water, they can also be intermittent.

This will only effect the shower valve though, not the other faucets.

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3 Answers

Ferroli DOM F24B Is leaking from the two 22mm pipes on the secondary heat exchanger


Yes, this is a common problem on the domi compact. unfortunately ferroli accept no responsibility if not in warranty period! can be a costly repair..

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