O
Oppie
pain in the tail, my FAIP H150 electric power washer died. The motor
starting capacitor went (oozed out the side of plastic shell). Replaced it
with a similarly rated phenolic case starting cap but noticed it's getting
very warm. More than likely the motor centrifugal switch is stuck closed. It
is a TEFC motor so getting to the switch is a major pain. Not to mention
that I don't see a replacement part listed anywhere.
As a test, I started the motor and then pulled a lead from the starting
capacitor. It sparked, showing that there was current flowing. So, either
this is a permanent split capacitor motor (unlikely) or the centrifugal
switch has failed shorted.
Now looking for a simple electronic or magnetic replacement. Has anybody had
any success with a similar replacement? My first thought was the starting
relay commonly used in refrigerators and air conditioners. It has a current
sensing relay coil in series with the run winding. Initially when power is
applied, the rotor is stationary and the run winding current is high. This
closes the contacts and applies power to the start winding (usually no
capacitor used on this) and motor starts. When the motor is up to speed, the
start current diminishes and the relay drops out, removing power from the
start winding.
Thank you as always - Oppie
starting capacitor went (oozed out the side of plastic shell). Replaced it
with a similarly rated phenolic case starting cap but noticed it's getting
very warm. More than likely the motor centrifugal switch is stuck closed. It
is a TEFC motor so getting to the switch is a major pain. Not to mention
that I don't see a replacement part listed anywhere.
As a test, I started the motor and then pulled a lead from the starting
capacitor. It sparked, showing that there was current flowing. So, either
this is a permanent split capacitor motor (unlikely) or the centrifugal
switch has failed shorted.
Now looking for a simple electronic or magnetic replacement. Has anybody had
any success with a similar replacement? My first thought was the starting
relay commonly used in refrigerators and air conditioners. It has a current
sensing relay coil in series with the run winding. Initially when power is
applied, the rotor is stationary and the run winding current is high. This
closes the contacts and applies power to the start winding (usually no
capacitor used on this) and motor starts. When the motor is up to speed, the
start current diminishes and the relay drops out, removing power from the
start winding.
Thank you as always - Oppie