The water pressure drops every few minutes so the heating does not come on when on timed until The pressure is manually raised. Then stays on slightly when heating is on but drops again when heating or hot water not in use.
Have you checked the saftety relief usually set at 30psi sometimes will stick open and if it piped to a drain you should look and see if there is water running into it. The only other thing is a leak in the system but usually will be noticable by water lying somewhere.
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You have to let the system run for a while for the suction pressure to stabilize, if the metering device is a TXV pressure will rise and fall as the valve opens and closes. If this is R22 you need to get the suction pressure up
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?
Did you check yourair filter at the indoor unit. If you are not getting enough air through the unit it will do that. The othere thing that it could be is not so easy for you to fix. Your unit may be just a bit low on refrigerant. After running for a while the pressure drops too low and the low pressure switch cuts out. after a few seconds the pressure rises againa and it restarts. If the filter does not solve this then you need to get the unit serviced by a professional that is certified to handle refrigerants and can charge it for you.
check ac and let car get hot(not overheated) and with guages on high side is it above normal? 2.75-300 or more? this would be the problem ac cutting out cause ther is a problem some where u need to use ac gauges it will tell the story
I have the same problem. Sounds like the unit is stuck in "Dry Mode". Dry Mode runs the compressor for short intervals (like one minute at a time). Mine is only 2 months old and worked great until a few days ago.
Heya Harmlhs, If the system is going into a vaccum that shows the compressor is working I would say it is either short of gas or it is a problem with the RCD. If the compressor is getting really hot i would say that it would short of gas and it is not best to use it untill a licenced person comes and looks at it before the compressor is seriously damaged.
It sounds like the blower motor has burnt up.(the one inside) The unit running for a few minutes then shutting off, is due to the high pressure/temperature safeties. When you removed the panels, did you notice any fan running?