Recent content by ozdiver

Just went over and signed up with Texas Pressure Washing. $3.51/gal (tax included). A little more expensive than the old Napco prices, but still well worth it for 12.5% LC. Very convenient location for me as well.

Bad news for those in the Spring, TX region. We used to have Napco as a cost effective bulk bleach supplier. Recently they were bought out by Hawkins; a national chemical company. They continued drive up bleach supply for a couple of months but now have shut it down entirely. So now we are left...

Thanks, I'll get my multimeter out and go through all those tests.

I don't shutdown either. I prepared for the store by pulling the drains on my Swim Jet pumps to drain them. I kept the pool pump and waterfall pumps primed as they are on a freeze protection program. Of course the power went out a 2am and the freeze protection was moot. Fortunately I got to...

Turned on my Spa & heater today and the heater did not start. Checked the display and it had "Service heater' light on. Popped the hood and the AFS light was on. Made sense because the blower was not running. Opened the blower to check for nests, totally clean and spins freely. Poked my phone...

I picked up a 10 pack of uln2803A.

Yeah, I have stashed 6 more of those arrays in an antistatic envelope in the panel behind the mainboard with a note for myself or the next owner.

Transistors in. Powered up board. No tripping. Powered down and connected all the sensors, controls and relays. Powered all breakers up. No tripping. Tried to turn on pump. Nothing. Well, not nothing, swearing. Opened up panel a stared menacingly at the board with my best Clark Griswold...

Checking online, is there a difference between uln2803A and uln2803APG I need to be aware of? They appear to list them interchangeably.

Soooo, with the uln2803's removed, the mainboard powers up and does not trip the 3A 18V breaker. I get several LEDs lighting up; Auto, Pool, Filter Pump & a flashing one indicating I should check the indoor control panel. So does that mean if I bought a new set of uln2803's I might breath new...

I checked out the relays per Jim's direction. They are all about equal @ 8 Ohms. I have labelled and popped the uln2803's and will hook it back up to the power in the morning. As for curent draw, something over 3A (hence the breaker popping). I am not sure I will be able to measure the actual...

With all the relays disconnected from the mainboard I still get the tripping. So the although there may be a relay problem, there is also something else on the mainboard. One way or the other the mainboard is getting all three voltage power feeds (Connection tested with multimeter) and when it...

Well, that rules out the Transformer. Red pair have 24V, Blue pair have 12V, Orange Pair 18V. All seems ok there.

Thanks Jim, It certainly points in that direction. As I only trip the 18VAC breaker, can I put a multimeter across those 2 wires coming from the Transformer and validate they are in fact delivering that? I don't want to add to my woes by cooking something else that was ok.

As you can see, the singe mark does not equate to a matching burn on actual PCB.