Electrical Components

240 Volt wiring parts like Contactor, Element, and wires are here

Power Failure - Auto-Restart DIY Option
SP2.3 and perhaps 3.0 do not come back on automatically after a power failure. If the power goes off with a Brown-out of bad voltage or frequency, the PCB...
Sat, Dec 17, 2016 at 5:13 PM
Contactor for 2016-2017 SunPumps
The 2016-17 models use the same 40 Amp Single-pole+Shunt Contactor made by CHINT Electrical. If you remove the SunPump front panel, the Contactor is mounted...
Sat, Dec 31, 2016 at 2:12 PM
240 Volt Power Supply
All SunPumps are 240 Volt / 60 hz. 1 phase standard for residential use.  Heat Pumps require a 2-wire + Ground to power the Compressor, and control elec...
Sat, Dec 17, 2016 at 5:48 PM
Electric Element Circuit Testing
SAFETY NOTICE -  240 VOLT HIGH VOLTAGE - MAKE 110% CERTAIN THE POWER IS SWITCHED OFF BEFORE TESTING.  The electric heater element should come on when th...
Sat, Dec 31, 2016 at 2:23 PM
SP3.0 Electrical Schematics
The Schematic drawing should be pasted on the electrical box cover, but if you need it they are included here for reference. These diagrams apply to 20016 ...
Thu, Jan 26, 2017 at 10:08 PM
Circuit Board Removal Procedure - SP2.3, 3.0, 3.1
The PCB is the brains of the whole system. It has a lot of functions and many pieces that must work together. While the majority of known issues are setting...
Thu, Dec 28, 2017 at 1:50 PM
Disconnecting the Nylon Standoffs Holding the PCB
There are a couple ways to remove the 6 white nylon standoff parts that hold the PCB to the aluminum heat sink. Below I show you how to use a pen to pus...
Tue, Jan 9, 2018 at 4:17 PM