8-11
SECTION 8
APPLIANCES & INTERIOR FEATURES
7. If lockout happens before main burner lights,
turn switch OFF, wait five seconds and turn
switch back on. This will restart the ignition
cycle. The first start-up of the water heater
after it has not been used for a long time may
require several ignition cycles before all the
air is purged from the gas lines and gas
begins to flow.
If the burner will not come on, check the fol-
lowing items before calling for service.
1. Is the switch turned on?
2. Dos the LP tank have gas in it or is main
tank valve turned on?
3. Is the ECO Reset button tripped? (See
Atwood Water Heater Operation
Manual
in your Owners InfoCase.)
To Turn Water Heater Off
1. Turn switch on monitor panel to Off posi-
tion.
2. Turn electric water heater switch off.
3. Turn off LP gas supply (if not to be used for
extended period).
4. Drain water heater tank if the coach is to be
stored or water heater will be Off during
freezing temperatures. (See Draining and
Storage Instructions in
Atwood Water Heater
Operation Manual
in your Owners InfoCase.
Pressure-Temperature (P-T) Relief Valve
On occasion, water may be seen seeping from
the water heater pressure-temperature relief
valve. This is no cause for repair or replacement
of the valve.
The water heater tank is designed so that there
is normally an air pocket at the top of the tank that
acts as a pressure buffer. In time, however, heat-
ed water may expand and fill this air pocket,
causing a slight increase in water pressure. This
may cause the P-T valve to “weep” until the air
pocket is manually replaced.
OPERATE THIS VALVE ONLY WHEN
THE WATER HEATER AND COOLING SYS-
TEM ARE COLD!
To Replace the Air Pocket:
1. Turn off the water heater switch and incom-
ing water supply (city water and/or demand
pump).
2. Open a faucet in the motor home to relieve
water pressure.
3. Pull the handle of the P-T valve straight out
and allow water to flow until it stops.
Water Heater Service Access Panel
Water Heater - Exterior Service View
P-T Valve
(Lift Straight Out Slowly -
Let Snap Back)
P-T Valve
Open