Hayward H400 blows fuse

[adam1027]

Hi David,
I am wondering if you ended up replacing the blower/motor assembly? I have the same symptoms as you documented in the original post. Fuse F4 blowing and resistance reading on the slow speed windings is above the range specified in the manual. My motor is drawing 2amps (slow speed) and the motor label plate seems to indicate a rated current of 1.3 amps. Any info on how you fixed your original issue is appreciated.
Thanks
Adam

Moved from here.

 

[ajw22]

Welcome to TFP.

You have a 20 something year old heater. There are four different motors that heater can possibly have. See Hayward H-Series Heaters - Further Reading

The blower assembly probably needs replacement if you can find the parts.

Otherwise the heater is past its useful life.