Starting a month ago, my CoverStar started tripping its GFCI when being closed. What started as 1 trip per closing has become many trips per closing.
Replacing the GFCI had no effect. Measured the circuit wiring without the motor connected with a Fluke handheld; it was over-range (>40Mohms). Measured the motor and it was 500Kohms to 1.5Mohms (varied if I measured it in the cold, damp morning or if the sun made an appearance midday).
So it appears the motor is bad. I'm just over 2 years since it was installed so I believe, this time, it will be covered by warranty. Seattle has been very rainy this winter. The motor and mechanism are set down in a chamber behind the pool. The chamber does drain however it's certainly stays damp all winter. Plenty of slugs and worms and spiders live down there.
Any idea if this is what I can expect at any frequency in the future or is this an unusual failure? Should I encase the motor in a sealed dry box to minimize it's exposure to damp conditions? I'm thinking it has such intermittent operation that it doesn't need much in the way of air circulation for cooling (I think it's a totally "sealed" motor already).
Appreciate any comments or advice.