Adjusting HW Tempering Valve
Submitted: Thursday, Aug 22, 2013 at 17:08
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DaveB2
Can anyone give me some advice on the above. HW in our caravan is no longer very hot, how do I adjust the tempering valve? Could it be a build up of
debris at the inlet filter causing the problem?
Reply By: Notso - Thursday, Aug 22, 2013 at 18:01
Thursday, Aug 22, 2013 at 18:01
Don't know about yours but
mine has a red knob on it that you can turn to increase or decrease the temp. This is under the van near the shower end.
First thing though, is the hot water at the
kitchen sink still as hot as it used to be? Is the delivery volume about the same?
AnswerID:
516909
Follow Up By: DaveB2 - Thursday, Aug 22, 2013 at 20:19
Thursday, Aug 22, 2013 at 20:19
Thanks Notso.
I've had a look at the valve and have in fact removed the red/
orange plastic cap. However, it doesn't seem to be adjustable unless a special tool is required ( which I've read about having researched the subject on the Internet). Both outlets, in the sink and in the bathroom area are the same lukewarm temperature. Having run the taps and felt the pipes under the van I'm convinced the tempering valve is admitting too much cold water for some reason.
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Follow Up By: Member - Niss42 - Friday, Aug 23, 2013 at 14:03
Friday, Aug 23, 2013 at 14:03
Dave, the tempering valve is only used to limit the water temperature to the shower to prevent scalding.
If the hot water at the sink and hand basin is not hot I would be looking at the hot water unit.
Good luck,
Barry.
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Follow Up By: Notso - Friday, Aug 23, 2013 at 16:44
Friday, Aug 23, 2013 at 16:44
The hand basin can be hooked into the same flow as the Shower, but if the sink isn't hot then something is astray as the sink is usually hooked directly to the Hot Water unit.
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796486
Follow Up By: DaveB2 - Friday, Aug 23, 2013 at 20:21
Friday, Aug 23, 2013 at 20:21
Guys
I've traced the pipe work pretty carefully and am convinced thar the HW from the heater only goes directly to the tempering valve. The tempered water then gets supplied to all
services, bathroom,kitchen and shower. I also don't think anything is wrong with the heater as when I've drained the system the water is very hot. I'm now convinced that the valve either needs cleaning out, or needs to be replaced.
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