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Can You Replace 5" Water Heater Relief Valve Probe With 4" Probe  

Updated 07/01/2024 | Published 06/29/2024

Question:

My water heater relief valve has a 5 probe. Do you have a pressure relief probe with a 5 probe? Does it make a difference the length of the probe? Ive replaced relief valve earlier this year it had a short probe, I think it was 3 and it is starting to leak

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Expert Reply:

Hi Larry,

You can replace your valve with a 5" probe with the Camco RV Water Heater Temperature and Pressure Relief Valve - 3/4" Valve with 4" Probe # CAM10473 so long as yours has the same 150 PSI and 210 degree temperature ratings.

I have to imagine yours is the same though, as that is the standard pressure and temperature rating for the valves.

expert reply by:
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Kyle S
Larry profile picture

Larry

7/1/2024

Hello Kyle The valves leaks a small amount of water at the point where the gas or electric heating shuts off. Perhaps the shut off setting is set just a little to high. Think the setting is factory set too?

Kyle S. profile picture

Kyle S.

7/1/2024

@Larry Yes, that temperature is pre-set at the factory for many water heaters. I'd check the manual of yours which should specify.

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