Forum Discussion
Old-Biscuit
Apr 01, 2018Explorer III
Gray Fox wrote:
My heater is electric and gas what happens it drips out water from the pressure relief valve enough so u can see it when parked on a cement slab. Im thinking the water gets to hot. Some one posted a part #93105 not sure where this part # is located on my rig. Hope somone can help thanks........
That part number is for the Atwood Adjustable T-stat.....click on link to see
Water dripping from T&P Relief Valve is typically due to the loss of the air pocket in top of WH Tank.....air gap designed into WH Tanks to control pressure increases due to the water swelling when heated.
Air can be compressed...water can't.
No air pocket and pressure increases enough to cause T&P to WEEP
Air gap is established when WH Tank is filled
To RE-establish:
Turn water supply OFF
OPEN a faucet hotside to relieve pressure
OPEN T&P Relief Valve via Lever...hold open until water stops running out
Let T&P SNAP Closed
Close faucet
Turn water supply back on
The model number of your water heater should be in outside compartment on side frame
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