[Darkroom] Water heater controller

Jasmine Strong jasmine at electronpusher.org
Tue Feb 15 23:05:14 PST 2011


It also says to make sure that the remote control jumper is set to "off" rather than "rem" if you don't have the remote control panel (which is, how quaint, a 4-20 mA current loop controller option.)

-J.

On 15 Feb 2011, at 23:02, Jasmine Strong wrote:

> 
> Ok, so there's a dual solenoid valve in this thing.  If you remove the connections from the hot solenoid (it is the one on the right) then it should read between 18 and 22 ohms with a multimeter.
> 
> I suspect the plunger might be stuck, or the diaphragm might be dirty.  It is designed to be disassembled and these parts are service parts (they're said t be in the Annual Service Pack... yeah right)  but I suspect cleaning them carefully and pushing a thin probe through the pilot holes might fix the problem.
> 
> -J.
> 
> On 15 Feb 2011, at 22:50, Rubin Abdi wrote:
> 
>> Jasmine Strong wrote, On 20110215 224609:
>>> Is there enough hot water pressure?  Many of those types of solenoid valves are pilot-operated and won't switch without sufficient head.
>> 
>> Yup, I took the intake off and pissed hot water into the sink at plenty
>> of pressure.
>> 
>> -- 
>> Rubin Abdi
>> rubin at starset.net
>> 
> 
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