Troubleshooting - Presto H-DRY Q7207-0 Guia De Instalacion

Troubleshooting

Problem
The IR sensor only "sees"
close range objects.
The heater gets hot but no air
stream is produced or the air
stream is of low pressure and
velocity.
The dryer only blows cold air
during a full cycle.
If the dryer will not run.
The dryer cycles by itself or
runs constantly.
The dryer makes a loud noise
and does not run for a
complete cycle.
The dryer runs but air stream is
low pressure and/or low
velocity
Solution
1. Ensure that there is no obstruction on or in front of the IR sensor. Clean any dirt of debris off
the sensor lens.
2. Remove objects under the sensor if any. Disconnect power and reconnect it to reset the auto-
detecting sensing range.
3. Check the VR for the sensing range setting.
4. If the problem persists, contact the distributor for assistance.
Disconnect the power. Remove the dryer cover and disassemble the blower- motor/fan housing.
Replace the fan motor.
Disconnect the power. Remove the dryer cover and disassemble the blower-motor/fan housing.
Test the thermostat for open circuit. Check the heater element for signs of burning or breakage.
Damaged element must be replaced.
First ensure that the breaker supplying the dryer is operational. If it is, disconnect the power and
remove the dryer cover. Taking suitable precautions to avoid shock hazard, reconnect the power
and check for Voltage at the terminal block. Verify that connections are made correctly.
Ensure that there is no obstruction on or in front of the IR sensor. Clean any dirt or debris off the
sensor lens. If the problem persists, contact the distributor for assistance.
Ensure that the supply voltage is correct. Dryer will make a loud humming noise if the input
voltage is too high. Verify voltage requirement on the unit rating label and the correct power
supply as required. If the problem persists, contact the distributor for assistance.
Ensure that the supply Voltage is correct. Dryer will run weakly if the input Voltage is too low.
Verify Voltage requirement on unit rating label and correct supply as required.
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