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Suburban recommends that a check valve not be installed directly at the inlet to the water heater
tank. This will increase weeping of the pressure relief valve.
y
WARNING: Do not remove or plug the relief valve.
One way to reduce the frequency of this occurrence is to maintain an air pocket at the top of the
water heater tank. This air pocket will form in the tank by design. However, it will be reduced over
time by the everyday use of your water heater.
To replenish this air pocket:
1. Turn off water heater.
2. Turn off cold water supply line.
3. Open a faucet in the RV.
4. Pull out on the handle of the Pressure Relief (P & T) Valve and allow water to flow from the
valve until it stops.
5. Release handle on P & T Valve - it should snap closed.
6. Close faucet and turn on cold water supply; as the tank fills, the air pocket will develop.
Repeat this procedure as often as needed to reduce the frequency of the weeping of the P & T
Valve. If the weeping persists after following this procedure, you may elect to install an expansion
or accumulator tank in the cold water line between the tank and the check valve to relieve the
pressure caused by thermal expansion. Contact your local dealer for assistance.
THERMOSTAT AND MANUAL RESET
Models SW6D, SW6DE, SW6DM, SW6DEM: These water heaters are equipped with a high
temperature limit as a cut-off device. Temperature above 180°F will cause manual reset button to
trip, shutting down the main burner. (Fig. 5-3) To activate the burner, the water temperature must
be below 110°F, push the reset button to re-activate the burner.
Models SW6DE and SW6DEM: These water heaters are equipped with a high temperature limit
as a cut-off device. Temperature above 180°F will cause manual reset button to trip shutting down
the electric element. (Fig. 5-4) To activate the element, the water temperature must be below
110°F, push the reset button to re-activate the element.
Appliances
RESET
BUTTON
12-VOLT DC T-STAT
HI-LIMIT
Fig. 5-3
RESET
BUTTON
120-VOLT AC T-STAT
HI-LIMIT
Fig. 5-4
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