POWER SUPPLY VOLTAGE ERROR
Cause
The supply voltage is not correct.
Possible power failure to the outlet (electricity was off?)
Solution
If unit wont power up, check the power source,
Check the specification label on the unit for proper supply voltage required.
Some units need 120Vac.
Some units need 240Vac or 208Vac.
Check customer’s voltage while powering the unit on and trying to run a cycle.
If voltage measured drops less than 10 % then the customer’s electrical system is the cause.
If voltage measured is too high, higher than 10% it may also trigger this error code.
The customer will need an electrician to repair their receptacle, breaker or electrical wires in their home.
DETAILS BELOW:
Verify your power source from the outlet, and at the main PCB.
Check terminal block and switch wire connection if needed. Incorrect connection may cause damage to dryer.
In some rare cases it is possible to have a heater wire to short to ground temporarily causing a drop in voltage to the main board causing a nP or PS or a PF Error Code.
In the examples below the white wire is touching the sharp edge of the heater housing causing a direct short to ground. You need to inspect the heater wires to insure that the unit you are working on does not have this issue and if it does then adjust the wires like the correct example below.
3 Responses
RNN240122075025
Could a faulty main control board cause this error?
Likely not that we have every encountered
Check White (Neutral) to Black (L1) for 120 volts while drum motor is running and be sure the power is not dipping.
Also be sure the heater wire is not shorting out or one of the elements is not loose inside the dryer causing a voltage dip