New Pool this year installed with EasyTouch 8 which was upgraded to IntelliCenter i10D (523049).

Getting cooler so last weekend I turned the “SPA” ON, and the valves changed, but I got an “Err” on the Intellitouch and nothing on the MT400 panel (no lights no nothing). Cycled the Circuit Breakers (CBs) but still no response by the MasterTemp 400.



Called my GC but he’s currently swamped. I’m a mech by trade so I thought I’d get in the books and then look for some obvious issues. I took the electrical panel off (240V system) just to see if anything had charred etc.; but inside and all was good. Got the trusty multimeter out and checked to see if I had 240V at the 20 AMP Heater CB between the two poles and I it was.

Next, I opened up the MT400 panel to confirm wiring (240V red plug) security etc. I even checked the Fireman’s fuse and it was good as well. Nothing out of the ordinary. I opened up the other access panel and verified the “gas control toggle” was ON.


Flipped the intelliTouch panel down to see if there were any obvious wires/sockets not connected and didn’t see anything obvious. Pulled some of the installation manuals out and just couldn’t see the electrical details nor circuit panel schematics to confirm everything was connected correctly......it must be a duplicate wiring or something as I’m getting the “Err” for heater.


So, that’s where I’m at…..thanks for any help with some troubleshooting/ideas?

Getting cooler so last weekend I turned the “SPA” ON, and the valves changed, but I got an “Err” on the Intellitouch and nothing on the MT400 panel (no lights no nothing). Cycled the Circuit Breakers (CBs) but still no response by the MasterTemp 400.



Called my GC but he’s currently swamped. I’m a mech by trade so I thought I’d get in the books and then look for some obvious issues. I took the electrical panel off (240V system) just to see if anything had charred etc.; but inside and all was good. Got the trusty multimeter out and checked to see if I had 240V at the 20 AMP Heater CB between the two poles and I it was.

Next, I opened up the MT400 panel to confirm wiring (240V red plug) security etc. I even checked the Fireman’s fuse and it was good as well. Nothing out of the ordinary. I opened up the other access panel and verified the “gas control toggle” was ON.


Flipped the intelliTouch panel down to see if there were any obvious wires/sockets not connected and didn’t see anything obvious. Pulled some of the installation manuals out and just couldn’t see the electrical details nor circuit panel schematics to confirm everything was connected correctly......it must be a duplicate wiring or something as I’m getting the “Err” for heater.


So, that’s where I’m at…..thanks for any help with some troubleshooting/ideas?
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