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Mikol
05-26-2008, 09:23 PM
When I have one of my zones running I noticed I have low Pressure.while I was walking around I heard a noise coming from my valve box.while the zone was running I open the bleeder valve and the zone had total pressure and working fine.after I shut down the zone and restarted a zone test went back to low pressure .it seems to me that maybe the valve is sticking or can anyone give me some expert advice.

CAPT Stream Rotar
05-26-2008, 09:30 PM
did you take the valve apart or check your voltage out put?

how about the resistance of the particular valve?

FIMCO-MEISTER
05-26-2008, 09:37 PM
Sounds like you have a richdel/hardie/irritrol 205. Take a pic and post. We'll advise on servicing it.

Wet_Boots
05-26-2008, 09:38 PM
1) defective diaphragm assembly
2) blockage in the solenoid pathway

londonrain
05-26-2008, 09:38 PM
Sounds like the diaphragm has lost its ability to flex and fully open...diaphragm needs replacing ...report back with the type and model of the valve...

DanaMac
05-26-2008, 10:17 PM
Sounds like you have a richdel/hardie/irritrol 205. Take a pic and post. We'll advise on servicing it.

Bingo! My thought exactly. Most likely the diaphragm.

EagleLandscape
05-27-2008, 12:10 AM
is the flow control turned way down? if it's not a bad diaphragm, thats what it sounds like. open it all the way up.

Dirty Water
05-27-2008, 12:44 AM
is the flow control turned way down? if it's not a bad diaphragm, thats what it sounds like. open it all the way up.

If my memory serves me right, and it depends on the valve, but I'm pretty sure that if you crank down the flow control, even the bleeder won't open it.

EagleLandscape
05-27-2008, 07:56 AM
true true.....

but hissing will come from a turned down flow on a valve, thats where i pulled that from

FIMCO-MEISTER
05-27-2008, 08:15 AM
Only other valve I think it could be is a HR series valve and that would follow Boots solenoid restriction problem. If it is the 205 we generally just gut the valve and replace with all new parts. Bonnet/diaphragm/solenoid.

AI Inc
05-27-2008, 08:17 AM
Only other valve I think it could be is a HR series valve and that would follow Boots solenoid restriction problem. If it is the 205 we generally just gut the valve and replace with all new parts. Bonnet/diaphragm/solenoid.

Thats standard motus operandi for all valve problems here. We dont stock parts , just whole valves , we dont replace parts , just gut em and rebuild em.

Wet_Boots
05-27-2008, 08:37 AM
Saves distributors' time, too. No fiddly little parts to get lost.

mowzum
05-27-2008, 09:40 PM
diaphram is sacked, replace it.