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J. PREOPERATIONAL TESTS
ALL dryers are thoroughly tested and inspected before leaving the factory. However, a preoperational test
should be performed before the dryer is publicly used. It is possible that adjustments have changed in transit or
due to marginal location (installation) conditions.
1. Turn on electric power to the dryer.
2. Make sure the main door is closed and the lint drawer is securely in place.
3. Refer to the Operating Instructions for starting your particular dryer.
4. Check to insure that the basket (tumbler) starts in the clockwise (CW) direction. Additionally, check the
direction of the blower motor impellor (fan) to insure that impellor (fan) rotates in the clockwise (CW)
direction as viewed from the front. If it is, the phasing is correct. If the phasing is incorrect, reverse two (2)
of the leads at L1, L2, or L3 of the power supply connections made to the dryer.
IMPORTANT: Dryer blower motor impellor/fan as viewed from the front must turn in the
clockwise (CW) direction, otherwise dryer efficiency will drastically be reduced
and premature component failure can result.
5. HEAT CIRCUIT OPERATIONAL TEST
a. Gas Models
1) When the dryer is first started (during initial start-up), the burner has a tendency not to ignite on the
first attempt. This is because the gas supply piping is filled with air, so it may take a few minutes for
this air to be purged from the lines.
2) The dryer is equipped with a direct spark ignition (DSI) system which has internal diagnostics. If
ignition is not established after the first attempt, the heat circuit DSI module will lock out until it is
manually reset. To reset the DSI system, open and close main door and restart dryer (press the
"ENTER/START" key).
NOTE: During the purging period, check to be sure that ALL gas shut-off valves are open.
3) Once ignition is established, a gas pressure test should be taken at the gas valve pressure tap of each
dryer to assure that the water column pressure is correct and consistent.
NOTE: Water column pressure requirements (measured at the gas valve pressure tap)...
NATURAL GAS --- 3.5-4.0 INCHES W.C.
L.P. GAS ------------ 10.5 - 11.0 INCHES W.C.